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antenna</title> <meta name="description" content="Search results for: dipole antenna"> <meta name="keywords" content="dipole antenna"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="dipole antenna"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 362</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: dipole antenna</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">362</span> Dual Band LoRa/GPS Dipole Antenna with Harmonic Suppression Capability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amar%20Danial%20Abd%20Azis">Amar Danial Abd Azis</a>, <a href="https://publications.waset.org/abstracts/search?q=Shipun%20Anuar%20Hamzah"> Shipun Anuar Hamzah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Noh%20Dalimin"> Mohd Noh Dalimin</a>, <a href="https://publications.waset.org/abstracts/search?q=Khairun%20Nidzam%20Ramli"> Khairun Nidzam Ramli</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Sani%20Yahya"> Mohd Sani Yahya</a>, <a href="https://publications.waset.org/abstracts/search?q=Fauziahanim%20Che%20Seman"> Fauziahanim Che Seman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper discusses the design, simulation results, and testing of a compact dual-band printed dipole antenna operating at frequencies of 916 MHz and 1.57 GHz for LoRa and GPS applications, respectively. The basic design of this antenna uses a linear dipole that operates at 916 MHz and 2.7 GHz. A small triangular-shaped linear balun has been developed as the matching network. Parasitic elements are employed to tune the second frequency to 1.57 GHz through a parametric study. Meanwhile, a stub is used to suppress the undesired 2.6 GHz frequency. This antenna is capable of operating on dual-frequency bands simultaneously with high efficiency in suppressing the unwanted frequency. The antenna exhibits the following parameters: return loss of -18.5 dB at 916 MHz and -14 dB at 1.57 GHz, VSWR of 1.25 at 868 MHz and 1.5 at 1.57 GHz, and gain of 2 dBi at 916 MHz and 2.75 dBi at 1.57 GHz. The radiation pattern of the antenna shows a directional E-plane and an omnidirectional H-plane at both frequencies. With its compact size and dual-band capability, this antenna demonstrates great potential for use in IoT applications that require both LoRa and GPS communication, particularly in applications where a small yet efficient form factor is essential. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dual%20band" title="dual band">dual band</a>, <a href="https://publications.waset.org/abstracts/search?q=dipole%20antenna" title=" dipole antenna"> dipole antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=parasitic%20elements" title=" parasitic elements"> parasitic elements</a>, <a href="https://publications.waset.org/abstracts/search?q=harmonic%20suppression" title=" harmonic suppression"> harmonic suppression</a>, <a href="https://publications.waset.org/abstracts/search?q=LoRa%20and%20Gps" title=" LoRa and Gps"> LoRa and Gps</a> </p> <a href="https://publications.waset.org/abstracts/194483/dual-band-loragps-dipole-antenna-with-harmonic-suppression-capability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/194483.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">6</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">361</span> Design of H-Shape X-band Application Electrically Small Antenna</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Riki%20H.%20Patel">Riki H. Patel</a>, <a href="https://publications.waset.org/abstracts/search?q=Arpan%20H.%20Desai"> Arpan H. Desai</a>, <a href="https://publications.waset.org/abstracts/search?q=Trushit%20Upadhyaya"> Trushit Upadhyaya</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a new small electrically antenna rectangular X- band micro-strip patch antenna loaded with material Rogers RT/duroid 5870 (tm). The present discussion focuses on small Electrically antenna which are electrically small compared to wave length the performance of electrically small antenna are closely related to their electrical size, the gain can be increased to maintain the efficiency of the radiator. Basically micro-strip Patch antennas have been used in satellite communications and for their good characteristics such as lightness, low cost, and so on. Here in the design H- shape folded dipole, which increase the band width of the antenna. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrically%20small%20antennas" title="electrically small antennas">electrically small antennas</a>, <a href="https://publications.waset.org/abstracts/search?q=X-band%20application" title=" X-band application"> X-band application</a>, <a href="https://publications.waset.org/abstracts/search?q=antenna" title=" antenna"> antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=micro-strip%20patch" title=" micro-strip patch"> micro-strip patch</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency%20antenna" title=" frequency antenna"> frequency antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=feed" title=" feed"> feed</a>, <a href="https://publications.waset.org/abstracts/search?q=gain" title=" gain"> gain</a> </p> <a href="https://publications.waset.org/abstracts/32279/design-of-h-shape-x-band-application-electrically-small-antenna" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32279.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">466</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">360</span> Design of a Dual Polarized Resonator Antenna for Mobile Communication System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Fhafhiem">N. Fhafhiem</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Krachodnok"> P. Krachodnok</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Wongsan"> R. Wongsan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes the development and design of double layer metamaterials based on electromagnetic band gap (EBG) rods as a superstrate of a resonator antenna to enhance required antenna characteristics for the mobile base station. The metallic rod type metamaterial can partially reflect wave of a primary radiator. The antenna was designed and analyzed by a simulation result from CST Microwave Studio and designed technique could be confirmed by a measurement results from prototype antenna that agree with simulation results. The results indicate that the antenna can also generate a dual polarization by using a 45˚ oriented curved strip dipole located at the center of the reflector plane with double layer superstrate. It can be used to simplify the feed system of an antenna. The proposed antenna has a bandwidth covering the frequency range of 1920 – 2200 MHz, the gain of the antenna increases up to 14.06 dBi. In addition, an interesting sectoral 60˚ pattern is presented in horizontal plane. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metamaterial" title="metamaterial">metamaterial</a>, <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20band%20gap" title=" electromagnetic band gap"> electromagnetic band gap</a>, <a href="https://publications.waset.org/abstracts/search?q=dual%20polarization" title=" dual polarization"> dual polarization</a>, <a href="https://publications.waset.org/abstracts/search?q=resonator%20antenna" title=" resonator antenna"> resonator antenna</a> </p> <a href="https://publications.waset.org/abstracts/12371/design-of-a-dual-polarized-resonator-antenna-for-mobile-communication-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12371.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">386</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">359</span> Modeling and Design of Rectenna for Low Power Medical Implants</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Madhav%20Pant">Madhav Pant</a>, <a href="https://publications.waset.org/abstracts/search?q=Khem%20N.%20Poudel"> Khem N. Poudel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wireless power transfer is continuously becoming more powerful and compact in medical implantable devices and the wide range of applications. A rectenna is designed for wireless power transfer technique that can be applied to medical implant devices. The experiment is performed using ANSYS HFSS, a full wave electromagnetic simulation. The dipole antenna combinations operating at 2.4 GHz are used for wireless power transfer and the maximum DC voltage reception by the implant considering International Commission on Non-Ionizing Radiation Protection (ICNIRP) regulation. The power receiving dipole antenna is placed inside the cylindrical geometry having the similar properties of the human body at the frequency of 2.4 GHz. Our design can provide the power at the depth of 5 mm skin and 5mm of bone for the implant. The voltage doubler/quadrupler rectifier in ANSYS Simplorer is used to calculate the exact DC current utilized by implant inside the human body. The qualitative design and analysis of this wireless power transfer method could also be used for other biomedical implants systems such as cardiac pacemaker, insulin pump, and retinal implants. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dipole%20antenna" title="dipole antenna">dipole antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=medical%20implants" title=" medical implants"> medical implants</a>, <a href="https://publications.waset.org/abstracts/search?q=wireless%20power%20transfer" title=" wireless power transfer"> wireless power transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=rectifier" title=" rectifier"> rectifier</a> </p> <a href="https://publications.waset.org/abstracts/98975/modeling-and-design-of-rectenna-for-low-power-medical-implants" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98975.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">172</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">358</span> High Gain Broadband Plasmonic Slot Nano-Antenna</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20S.%20Haroyan">H. S. Haroyan</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20R.%20Tadevosyan"> V. R. Tadevosyan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> High gain broadband plasmonic slot nano-antenna has been considered. The theory of plasmonic slot nano-antenna (PSNA) has been developed. The analytical model takes into account also the electrical field inside the metal due to imperfectness of metal in optical range, as well as numerical investigation based on FEM method has been realized. It should be mentioned that Yagi-Uda configuration improves directivity in the plane of structure. In contrast, in this paper the possibility of directivity improvement of proposed PSNA in perpendicular plane of structure by using reflection metallic surface placed under the slot in fixed distance has been demonstrated. It is well known that a directivity improvement brings to the antenna gain increasing. This method of diagram improving is also well known from RF antenna design theory. Moreover the improvement of directivity in the perpendicular plane gives more flexibility in such application as improving the light and atom, ion, molecule interactions by using such type of plasmonic slot antenna. By the analogy of dipole type optical antennas the widening of working wavelengths has been realized by using bowtie geometry of slots, which made the antenna broadband. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=broadband%20antenna" title="broadband antenna">broadband antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20gain" title=" high gain"> high gain</a>, <a href="https://publications.waset.org/abstracts/search?q=slot%20nano-antenna" title=" slot nano-antenna"> slot nano-antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=plasmonics." title=" plasmonics. "> plasmonics. </a> </p> <a href="https://publications.waset.org/abstracts/28413/high-gain-broadband-plasmonic-slot-nano-antenna" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28413.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">370</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">357</span> The Effect of Choke on the Efficiency of Coaxial Antenna for Percutaneous Microwave Coagulation Therapy for Hepatic Tumor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Surita%20Maini">Surita Maini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There are many perceived advantages of microwave ablation have driven researchers to develop innovative antennas to effectively treat deep-seated, non-resectable hepatic tumors. In this paper a coaxial antenna with a miniaturized sleeve choke has been discussed for microwave interstitial ablation therapy, in order to reduce backward heating effects irrespective of the insertion depth into the tissue. Two dimensional Finite Element Method (FEM) is used to simulate and measure the results of miniaturized sleeve choke antenna. This paper emphasizes the importance of factors that can affect simulation accuracy, which include mesh resolution, surface heating and reflection coefficient. Quarter wavelength choke effectiveness has been discussed by comparing it with the unchoked antenna with same dimensions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microwave%20ablation" title="microwave ablation">microwave ablation</a>, <a href="https://publications.waset.org/abstracts/search?q=tumor" title=" tumor"> tumor</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=coaxial%20slot%20antenna" title=" coaxial slot antenna"> coaxial slot antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=coaxial%20dipole%20antenna" title=" coaxial dipole antenna"> coaxial dipole antenna</a> </p> <a href="https://publications.waset.org/abstracts/28103/the-effect-of-choke-on-the-efficiency-of-coaxial-antenna-for-percutaneous-microwave-coagulation-therapy-for-hepatic-tumor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28103.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">357</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">356</span> Cross-Dipole Right-Hand Circularly Polarized UHF/VHF Yagi-Uda Antenna for Satellite Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shativel%20S.">Shativel S.</a>, <a href="https://publications.waset.org/abstracts/search?q=Chandana%20B.%20R."> Chandana B. R.</a>, <a href="https://publications.waset.org/abstracts/search?q=Kavya%20B.%20C."> Kavya B. C.</a>, <a href="https://publications.waset.org/abstracts/search?q=Obli%20B.%20Vikram"> Obli B. Vikram</a>, <a href="https://publications.waset.org/abstracts/search?q=Suganthi%20J."> Suganthi J.</a>, <a href="https://publications.waset.org/abstracts/search?q=Nagendra%20Rao%20G."> Nagendra Rao G.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Satellite communication plays a pivotal role in modern global communication networks, serving as a vital link between terrestrial infrastructure and remote regions. The demand for reliable satellite reception systems, especially in UHF (Ultra High Frequency) and VHF (Very High Frequency) bands, has grown significantly over the years. This research paper presents the design and optimization of a high-gain, dual-band crossed Yagi-Uda antenna in CST Studio Suite, specifically tailored for satellite reception. The proposed antenna system incorporates a circularly polarized (Right-Hand Circular Polarization - RHCP) design to reduce Faraday loss. Our aim was to use fewer elements and achieve gain, so the antenna is constructed using 6x2 elements arranged in cross dipole and supported with a boom. We have achieved 10.67dBi at 146MHz and 9.28dBi at 437.5MHz.The process includes parameter optimization and fine-tuning of the Yagi-Uda array’s elements, such as the length and spacing of directors and reflectors, to achieve high gain and desirable radiation patterns. Furthermore, the optimization process considers the requirements for UHF and VHF frequency bands, ensuring broad frequency coverage for satellite reception. The results of this research are anticipated to significantly contribute to the advancement of satellite reception systems, enhancing their capabilities to reliably connect remote and underserved areas to the global communication network. Through innovative antenna design and simulation techniques, this study seeks to provide a foundation for the development of next-generation satellite communication infrastructure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yagi-Uda%20antenna" title="Yagi-Uda antenna">Yagi-Uda antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=RHCP" title=" RHCP"> RHCP</a>, <a href="https://publications.waset.org/abstracts/search?q=gain" title=" gain"> gain</a>, <a href="https://publications.waset.org/abstracts/search?q=UHF%20antenna" title=" UHF antenna"> UHF antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=VHF%20antenna" title=" VHF antenna"> VHF antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=CST" title=" CST"> CST</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20pattern." title=" radiation pattern."> radiation pattern.</a> </p> <a href="https://publications.waset.org/abstracts/180564/cross-dipole-right-hand-circularly-polarized-uhfvhf-yagi-uda-antenna-for-satellite-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/180564.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">61</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">355</span> Improving the Gain of a Multiband Antenna by Adding an Artificial Magnetic Conductor Metasurface</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amira%20Bousselmi">Amira Bousselmi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article presents a PIFA antenna designed for geolocation applications (GNSS) operating on 1.278 GHz, 2.8 GHz, 5.7 GHz and 10 GHz. To improve the performance of the antenna, an artificial magnetic conductor structure (AMC) was used. Adding the antenna with AMC resulted in a measured gain of 4.78 dBi. The results of simulations and measurements are presented. CST Microwave Studio is used to design and compare antenna performance. An antenna design methodology, design and characterization of the AMC surface are described as well as the simulated and measured performances of the AMC antenna are then discussed. Finally, in Section V, there is a conclusion. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antenna%20multiband" title="antenna multiband">antenna multiband</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20navigation%20system" title=" global navigation system"> global navigation system</a>, <a href="https://publications.waset.org/abstracts/search?q=AMC" title=" AMC"> AMC</a>, <a href="https://publications.waset.org/abstracts/search?q=Galeleo" title=" Galeleo"> Galeleo</a> </p> <a href="https://publications.waset.org/abstracts/150107/improving-the-gain-of-a-multiband-antenna-by-adding-an-artificial-magnetic-conductor-metasurface" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150107.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">77</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">354</span> Miniaturization of I-Slot Antenna with Improved Efficiency and Gain</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mondher%20Labidi">Mondher Labidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Fethi%20Choubani"> Fethi Choubani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, novel miniaturization technique of antenna is proposed using I-slot. Using this technique, gain of antenna can increased for 4dB (antenna only) to 6.6dB for the proposed I-slot antenna and a frequency shift of about 0.45 GHz to 1 GHz is obtained. Also a reduction of the shape size of the antenna is achieved (about 38 %) to operate in the Wi-Fi (2.45 GHz) band.RF Moreover the frequency shift can be controlled by changing the place or the length of the I-slot. Finally the proposed miniature antenna with an improved radiation efficiency and gain was built and tested. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=slot%20antenna" title="slot antenna">slot antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=miniaturization" title=" miniaturization"> miniaturization</a>, <a href="https://publications.waset.org/abstracts/search?q=RF" title=" RF"> RF</a>, <a href="https://publications.waset.org/abstracts/search?q=electrical%20equivalent%20circuit%20%28EEC%29" title=" electrical equivalent circuit (EEC)"> electrical equivalent circuit (EEC)</a> </p> <a href="https://publications.waset.org/abstracts/38270/miniaturization-of-i-slot-antenna-with-improved-efficiency-and-gain" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38270.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">286</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">353</span> Development of a Wall Climbing Robotic Ground Penetrating Radar System for Inspection of Vertical Concrete Structures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Md%20Omar%20Faruq%20Howlader">Md Omar Faruq Howlader</a>, <a href="https://publications.waset.org/abstracts/search?q=Tariq%20Pervez%20Sattar"> Tariq Pervez Sattar</a>, <a href="https://publications.waset.org/abstracts/search?q=Sandra%20Dudley"> Sandra Dudley</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper describes the design process of a 200 MHz Ground Penetrating Radar (GPR) and a battery powered concrete vertical concrete surface climbing mobile robot. The key design feature is a miniaturized 200 MHz dipole antenna using additional radiating arms and procedure records a reduction of 40% in length compared to a conventional antenna. The antenna set is mounted in front of the robot using a servo mechanism for folding and unfolding purposes. The robot’s adhesion mechanism to climb the reinforced concrete wall is based on neodymium permanent magnets arranged in a unique combination to concentrate and maximize the magnetic flux to provide sufficient adhesion force for GPR installation. The experiments demonstrated the robot’s capability of climbing reinforced concrete wall carrying the attached prototype GPR system and perform floor-to-wall transition and vice versa. The developed GPR’s performance is validated by its capability of detecting and localizing an aluminium sheet and a reinforcement bar (rebar) of 12 mm diameter buried under a test rig built of wood to mimic the concrete structure environment. The present robotic GPR system proves the concept of feasibility of undertaking inspection procedure on large concrete structures in hazardous environments that may not be accessible to human inspectors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=climbing%20robot" title="climbing robot">climbing robot</a>, <a href="https://publications.waset.org/abstracts/search?q=dipole%20antenna" title=" dipole antenna"> dipole antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=ground%20penetrating%20radar%20%28GPR%29" title=" ground penetrating radar (GPR)"> ground penetrating radar (GPR)</a>, <a href="https://publications.waset.org/abstracts/search?q=mobile%20robots" title=" mobile robots"> mobile robots</a>, <a href="https://publications.waset.org/abstracts/search?q=robotic%20GPR" title=" robotic GPR"> robotic GPR</a> </p> <a href="https://publications.waset.org/abstracts/45940/development-of-a-wall-climbing-robotic-ground-penetrating-radar-system-for-inspection-of-vertical-concrete-structures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45940.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">275</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">352</span> An Electrically Small Silver Ink Printed FR4 Antenna for RF Transceiver Chip CC1101</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20Majeed">F. Majeed</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20V.%20Thiel"> D. V. Thiel</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Shahpari"> M. Shahpari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An electrically small meander line antenna is designed for impedance matching with RF transceiver chip CC1101. The design provides the flexibility of tuning the reactance of the antenna over a wide range of values: highly capacitive to highly inductive. The antenna was printed with silver ink on FR4 substrate using the screen printing design process. The antenna impedance was perfectly matched to CC1101 at 433 MHz. The measured radiation efficiency of the antenna was 81.3% at resonance. The 3 dB and 10 dB fractional bandwidth of the antenna was 14.5% and 4.78%, respectively. The read range of the antenna was compared with a copper wire monopole antenna over a distance of five meters. The antenna, with a perfect impedance match with RF transceiver chip CC1101, shows improvement in the read range compared to a monopole antenna over the specified distance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=meander%20line%20antenna" title="meander line antenna">meander line antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=RFID" title=" RFID"> RFID</a>, <a href="https://publications.waset.org/abstracts/search?q=silver%20ink%20printing" title=" silver ink printing"> silver ink printing</a>, <a href="https://publications.waset.org/abstracts/search?q=impedance%20matching" title=" impedance matching"> impedance matching</a> </p> <a href="https://publications.waset.org/abstracts/56190/an-electrically-small-silver-ink-printed-fr4-antenna-for-rf-transceiver-chip-cc1101" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56190.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">275</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">351</span> Design of Broadband W-Slotted Microstrip Patch Antenna </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Neeraj%20G.%20Nahata">Neeraj G. Nahata</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20S.%20Bhagat"> K. S. Bhagat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Microstrip patch antenna widely used in communication area because it offers low profile, narrow bandwidth, high gain, and compact in size. It has big disadvantage of narrow bandwidth. To improve the bandwidth a W-slot technique is used, it is efficient to enhance the bandwidth of antenna. The feeding point of antenna is very important for efficient operation, so coaxial feeding technique is applied to microstrip patch antenna for impedance matching. A broadband W-slot microstrip patch antenna is designed successfully which attains a bandwidth of 22.74% at 10dB return loss with centre frequency of 4.5GHz and also it attains maximum directivity 8.78dBi. It is designed by cutting a W-slot into the patch of antenna, because of this resonant slot, the antenna gives broad bandwidth. This antenna is best suitable for C-band frequency spectrum. The proposed antenna is designed and simulated using IE3D software. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=broadband" title="broadband">broadband</a>, <a href="https://publications.waset.org/abstracts/search?q=microstrip%20antenna" title=" microstrip antenna"> microstrip antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=VSWR" title=" VSWR"> VSWR</a>, <a href="https://publications.waset.org/abstracts/search?q=W-slotted%20patch" title=" W-slotted patch"> W-slotted patch</a> </p> <a href="https://publications.waset.org/abstracts/25341/design-of-broadband-w-slotted-microstrip-patch-antenna" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25341.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">320</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">350</span> Depiction of a Circulated Double Psi-Shaped Microstrip Antenna for Ku-Band Satellite Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Naimur%20Rahman">M. Naimur Rahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Tariqul%20Islam"> Mohammad Tariqul Islam</a>, <a href="https://publications.waset.org/abstracts/search?q=Mandeep%20Singh%20Jit%20Singh"> Mandeep Singh Jit Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Norbahiah%20Misran"> Norbahiah Misran</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the architecture and exploration of a compact, circulated double Psi-shaped microstrip patch antenna for Ku-band satellite applications. The antenna is composed of the double Psi-shaped patch in opposite focus which is circulated with a ring. The antenna size is 24 mm × 18 mm and the prototype is imprinted on Rogers RT/duroid 5880 materials with the depth of 1.57 mm. The substrate has a relative permittivity of 2.2 and the dielectric constant of 0.0009. The excitation is supplied through a 50Ω microstrip line. The performance of the presented antenna has been simulated and verified with the High-Frequency Structural Simulator (HFSS). The results depict that the antenna covers the frequency spectrum 14.6 - 17.4 GHz (Ku-band) with 10 dB return loss. The antenna has a 4.40 dBi maximum gain with stable radiation patterns throughout the operating band which makes the proposed antenna compatible for the satellite application in Ku-band. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ku-band%20antenna" title="Ku-band antenna">Ku-band antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=microstrip%20antenna" title=" microstrip antenna"> microstrip antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=psi-shaped%20antenna" title=" psi-shaped antenna"> psi-shaped antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=satellite%20applications" title=" satellite applications"> satellite applications</a> </p> <a href="https://publications.waset.org/abstracts/91475/depiction-of-a-circulated-double-psi-shaped-microstrip-antenna-for-ku-band-satellite-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/91475.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">309</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">349</span> On the Design of Wearable Fractal Antenna</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amar%20Partap%20Singh%20Pharwaha">Amar Partap Singh Pharwaha</a>, <a href="https://publications.waset.org/abstracts/search?q=Shweta%20Rani"> Shweta Rani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper is aimed at proposing a rhombus shaped wearable fractal antenna for wireless communication systems. The geometrical descriptors of the antenna have been obtained using bacterial foraging optimization (BFO) for wide band operation. The method of moment based IE3D software has been used to simulate the antenna and observed that miniaturization of 13.08% has been achieved without degrading the resonating properties of the proposed antenna. An analysis with different substrates has also been done in order to evaluate the effectiveness of electrical permittivity on the presented structure. The proposed antenna has low profile, light weight and has successfully demonstrated wideband and multiband characteristics for wearable electronic applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=BFO" title="BFO">BFO</a>, <a href="https://publications.waset.org/abstracts/search?q=bandwidth" title=" bandwidth"> bandwidth</a>, <a href="https://publications.waset.org/abstracts/search?q=electrical%20permittivity" title=" electrical permittivity"> electrical permittivity</a>, <a href="https://publications.waset.org/abstracts/search?q=fractals" title=" fractals"> fractals</a>, <a href="https://publications.waset.org/abstracts/search?q=wearable%20antenna" title=" wearable antenna"> wearable antenna</a> </p> <a href="https://publications.waset.org/abstracts/31798/on-the-design-of-wearable-fractal-antenna" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31798.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">463</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">348</span> Dual Reconfigurable Antenna Using Capacitive Coupling Slot and Parasitic Square Ring</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Abou%20Al-alaa">M. Abou Al-alaa</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20A.%20Elsadek"> H. A. Elsadek</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20A.%20Abdallah"> E. A. Abdallah</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20A.%20Hashish"> E. A. Hashish</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A square patch antenna with both frequency and polarization reconfigurability is presented. The antenna consists of a square patch with coplanar feed on the ground plane. On the patch side, there is a parasitic square ring that is responsible for changing the antenna polarization. On the ground plane, there is a rectangular slot. By changing of length of this slot, the antenna resonance frequency can be changed. The antenna operates at 1.57 and 2.45 GHz that used in GPS and Bluetooth applications, respectively. The length of the slot in the proposed antenna is 40 mm, and the antenna operates at the lower frequency (1.57 GHz). By using switches in the ground plane the slot length can be adjust to 24 mm, so the antenna operates at upper frequency (2.45 GHz). Two switches are mounted on the parasitic ring at optimized positions. By switching between the different states of these two switches, the proposed antenna operates with linear polarization (LP) and circular polarization (CP) at each operating frequency. The antenna gain at 1.57 and 2.45 GHz are 5.9 and 7.64 dBi, respectively. The antenna is analyzed using the CST Microwave Studio. The proposed antenna was fabricated and measured. Results comparison shows good agreement. The antenna has applications in several wireless communication systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microstrip%20patch%20antenna" title="microstrip patch antenna">microstrip patch antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=reconfigurable%20antenna" title=" reconfigurable antenna"> reconfigurable antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency%20reconfigurability" title=" frequency reconfigurability"> frequency reconfigurability</a>, <a href="https://publications.waset.org/abstracts/search?q=polarization%20reconfigurability" title=" polarization reconfigurability"> polarization reconfigurability</a>, <a href="https://publications.waset.org/abstracts/search?q=parasitic%20square%20ring" title=" parasitic square ring"> parasitic square ring</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20polarization" title=" linear polarization"> linear polarization</a>, <a href="https://publications.waset.org/abstracts/search?q=circular%20polarization" title=" circular polarization "> circular polarization </a> </p> <a href="https://publications.waset.org/abstracts/5893/dual-reconfigurable-antenna-using-capacitive-coupling-slot-and-parasitic-square-ring" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5893.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">534</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">347</span> Directivity and Gain Improvement for Microstrip Array Antenna with Directors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hassan%20M.%20Elkamchouchi">Hassan M. Elkamchouchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Samy%20H.%20Darwish"> Samy H. Darwish</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasser%20H.%20Elkamchouchi"> Yasser H. Elkamchouchi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20E.%20Morsy"> M. E. Morsy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Methodology is suggested to design a linear rectangular microstrip array antenna based on Yagi antenna theory. The antenna with different directors' lengths as parasitic elements were designed, simulated, and analyzed using HFSS. The calculus and results illustrate the effectiveness of using specific parasitic elements to improve the directivity and gain for microstrip array antenna. The results have shown that the suggested methodology has the potential to be applied for improving the antenna performance. Maximum radiation intensity (Umax) of the order of 0.47w/st was recorded, directivity of 6.58dB, and gain better than 6.07dB are readily achievable for the antenna that working. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=directivity" title="directivity">directivity</a>, <a href="https://publications.waset.org/abstracts/search?q=director" title=" director"> director</a>, <a href="https://publications.waset.org/abstracts/search?q=microstrip%20antenna" title=" microstrip antenna"> microstrip antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=gain%20improvment" title=" gain improvment"> gain improvment</a> </p> <a href="https://publications.waset.org/abstracts/46501/directivity-and-gain-improvement-for-microstrip-array-antenna-with-directors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46501.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">457</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">346</span> A Discussion on Electrically Small Antenna Property</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Riki%20H.%20Patel">Riki H. Patel</a>, <a href="https://publications.waset.org/abstracts/search?q=Arpan%20Desia"> Arpan Desia</a>, <a href="https://publications.waset.org/abstracts/search?q=Trushit%20Upadhayay"> Trushit Upadhayay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The demand of compact antenna is ever increasing since the inception of wireless communication devices. In the age of wireless communication, requirement of miniaturized antennas is quite high. It is quite often that antenna dimensions are decided based on application based requirement compared to practical antenna constraints. The tradeoff in efficiency and other antenna parameters against to antenna size is always a debatable issue. The article presents detailed review of fundamentals of electrically small antennas and its potential applications. In addition, constraints and challenges of electrically small antennas are also presented in the article. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bandwidth" title="bandwidth">bandwidth</a>, <a href="https://publications.waset.org/abstracts/search?q=communication" title=" communication"> communication</a>, <a href="https://publications.waset.org/abstracts/search?q=electrically%20small%20antenna" title=" electrically small antenna"> electrically small antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=communication%20engineering" title=" communication engineering"> communication engineering</a> </p> <a href="https://publications.waset.org/abstracts/25459/a-discussion-on-electrically-small-antenna-property" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25459.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">530</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">345</span> A Dual Band Microstrip Patch Antenna for WLAN and WiMAX Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=P.%20Krachodnok">P. Krachodnok</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the design of a multiple U-slotted microstrip patch antenna with frequency selective surface (FSS) as a superstrate for WLAN and WiMAX applications is presented. The proposed antenna is designed by using substrate FR4 having permittivity of 4.4 and air substrate. The characteristics of the antenna are designed and evaluated the performance of modelled antenna using CST Microwave studio. The proposed antenna dual resonant frequency has been achieved in the band of 2.37-2.55 GHz and 3.4-3.6 GHz. Because of the impact of FSS superstrate, it is found that the bandwidths have been improved from 6.12% to 7.35 % and 3.7% to 5.7% at resonant frequencies 2.45 GHz and 3.5 GHz, respectively. The maximum gain at the resonant frequency of 2.45 and 3.5 GHz are 9.3 and 11.33 dBi, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=multi-slotted%20antenna" title="multi-slotted antenna">multi-slotted antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=microstrip%20patch%20antenna" title=" microstrip patch antenna"> microstrip patch antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency%20selective%20surface" title=" frequency selective surface"> frequency selective surface</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20magnetic%20conduction" title=" artificial magnetic conduction"> artificial magnetic conduction</a> </p> <a href="https://publications.waset.org/abstracts/12024/a-dual-band-microstrip-patch-antenna-for-wlan-and-wimax-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12024.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">380</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">344</span> Multi Antenna Systems for 5G Mobile Phones</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20N.%20Khan">Muhammad N. Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Syed%20O.%20Gillani"> Syed O. Gillani</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohsin%20Jamil"> Mohsin Jamil</a>, <a href="https://publications.waset.org/abstracts/search?q=Tarbia%20Iftikhar"> Tarbia Iftikhar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the increasing demand of bandwidth and data rate, there is a dire need to implement antenna systems in mobile phones which are able to fulfill user requirements. A monopole antenna system with multi-antennas configurations is proposed considering the feasibility and user demand. The multi-antenna structure is referred to as multi-input multi-output (MIMO) antenna system. The multi-antenna system comprises of 4 antennas operating below 6 GHz frequency bands for 4G/LTE and 4 antenna for 5G applications at 28 GHz and the dimension of board is 120 × 70 × 0.8mm3. The suggested designs is feasible with a structure of low-profile planar-antenna and is adaptable to smart cell phones and handheld devices. To the best of our knowledge, this is the first design compared to the literature by having integrated antenna system for two standards, i.e., 4G and 5G. All MIMO antenna systems are simulated on commercially available software, which is high frequency structures simulator (HFSS). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=high%20frequency%20structures%20simulator%20%28HFSS%29" title="high frequency structures simulator (HFSS)">high frequency structures simulator (HFSS)</a>, <a href="https://publications.waset.org/abstracts/search?q=mutli-input%20multi-output%20%28MIMO%29" title=" mutli-input multi-output (MIMO)"> mutli-input multi-output (MIMO)</a>, <a href="https://publications.waset.org/abstracts/search?q=monopole%20antenna" title=" monopole antenna"> monopole antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=slot%20antenna" title=" slot antenna"> slot antenna</a> </p> <a href="https://publications.waset.org/abstracts/86862/multi-antenna-systems-for-5g-mobile-phones" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86862.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">250</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">343</span> Optimization of Dual Band Antenna on Silicon Substrate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Syrine%20lahmadi">Syrine lahmadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Jamel%20Bel%20Hadj%20Tahar"> Jamel Bel Hadj Tahar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a rectangular antenna with slots integrated on silicon substrate operating in 60GHz, is studied and optimized. The effect of different parameter of the antenna (width, length, the position of the microstrip-feed line...) and the parameter of the substrate (the thickness, the dielectric constant) on gain, frequency is presented. Also, the paper presents a solution to ameliorate the bandwidth. The maximum simulated radiation gain of this rectangular dual band antenna is 5, 38 dB around 60GHz. The simulation studied id developed based on advanced design system tools. It is found that the designed antenna is 19 % smaller than a rectangular antenna with the same dimensions. This antenna with dual band can function for many communication systems as automobile or radar. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dual%20band" title="dual band">dual band</a>, <a href="https://publications.waset.org/abstracts/search?q=enlargement%20of%20bandwidth" title=" enlargement of bandwidth"> enlargement of bandwidth</a>, <a href="https://publications.waset.org/abstracts/search?q=miniaturized%20antennas" title=" miniaturized antennas"> miniaturized antennas</a>, <a href="https://publications.waset.org/abstracts/search?q=printed%20antenna" title=" printed antenna"> printed antenna</a> </p> <a href="https://publications.waset.org/abstracts/30092/optimization-of-dual-band-antenna-on-silicon-substrate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30092.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">358</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">342</span> Novel Microstrip MIMO Antenna for 3G/4G Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sandro%20Samir%20Nasief">Sandro Samir Nasief</a>, <a href="https://publications.waset.org/abstracts/search?q=Hussein%20Hamed%20Ghouz"> Hussein Hamed Ghouz</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Fathy"> Mohamed Fathy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A compact ultra-wide band micro-strip MIMO antenna is introduced. The antenna consists of two elements each of size 24X24 mm2 (square millimetre) while the total MIMO size is 58X24 mm2 after the spacing between MIMO elements and adding a decouple circuit. The first one covers from 3.29 to 6.9 GHZ using digital ground and the second antenna covers from 8.76 to 13.27 GHZ using defective ground. This type of antenna is used for 3G and 4G applications. The introduction for the antenna structure and the parametric study (reflection coefficients, gain, coupling and decoupling) will be introduced. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=micro-strip%20antenna" title="micro-strip antenna">micro-strip antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=MIMO" title=" MIMO"> MIMO</a>, <a href="https://publications.waset.org/abstracts/search?q=digital%20ground" title=" digital ground"> digital ground</a>, <a href="https://publications.waset.org/abstracts/search?q=defective%20ground" title=" defective ground"> defective ground</a>, <a href="https://publications.waset.org/abstracts/search?q=decouple%20circuit" title=" decouple circuit"> decouple circuit</a>, <a href="https://publications.waset.org/abstracts/search?q=bandwidth" title=" bandwidth"> bandwidth</a> </p> <a href="https://publications.waset.org/abstracts/4377/novel-microstrip-mimo-antenna-for-3g4g-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4377.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">365</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">341</span> Design of a Commercial Off-the-Shelf Patch Antenna with Wide Half Power Beam Width for Global Navigation Satellite Systems Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mannahel%20Iftikhar">Mannahel Iftikhar</a>, <a href="https://publications.waset.org/abstracts/search?q=Sara%20Saeed"> Sara Saeed</a>, <a href="https://publications.waset.org/abstracts/search?q=Iqra%20Faryad"> Iqra Faryad</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Subhan"> Muhammad Subhan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper describes the design of a low-cost dual-band stacked rhombus-shaped slot patch antenna. The antenna is designed on L-band with a GPS (L2) bandwidth of 0.08 GHz centered at 1.207 GHz and a GPS (L1) bandwidth of 0.23 GHz centered at 1.575 GHz. The antenna’s dimensions are 8.02×8.02 cm². The antenna has a 3 dB beamwidth of 100° at 1.204 GHz and 117° at 1.575 GHz. The gain of this antenna is 6.5 dBi at 1.575 GHz and 6.43 dBi at 1.207 GHz. The antenna is designed using commercial off-the-shelf components and can be used in any global navigation satellite system receiver covering L1 and L2 communication bands. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=circular%20polarization" title="circular polarization">circular polarization</a>, <a href="https://publications.waset.org/abstracts/search?q=enhanced%20beamwidth" title=" enhanced beamwidth"> enhanced beamwidth</a>, <a href="https://publications.waset.org/abstracts/search?q=stacked%20patches" title=" stacked patches"> stacked patches</a>, <a href="https://publications.waset.org/abstracts/search?q=GNSS" title=" GNSS"> GNSS</a>, <a href="https://publications.waset.org/abstracts/search?q=satellite%20communication" title=" satellite communication"> satellite communication</a> </p> <a href="https://publications.waset.org/abstracts/160831/design-of-a-commercial-off-the-shelf-patch-antenna-with-wide-half-power-beam-width-for-global-navigation-satellite-systems-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/160831.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">120</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">340</span> A Low Profile Dual Polarized Slot Coupled Patch Antenna</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mingde%20Du">Mingde Du</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Han"> Dong Han</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A low profile, dual polarized, slot coupled patch antenna is designed and developed in this paper. The antenna has a measured bandwidth of 17.2% for return loss > 15 dB and pair ports isolation >23 dB. The gain of the antenna is over 10 dBi and the half power beam widths (HPBW) of the antenna are 80±3<sup>o</sup> in the horizontal plane and 39±2<sup>o</sup> in the vertical plane. The cross polarization discrimination (XPD) is less than 20 dB in HPBW. Within the operating band, the performances of good impedance match, high ports isolation, low cross polarization, and stable radiation patterns are achieved. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dual%20polarized" title="dual polarized">dual polarized</a>, <a href="https://publications.waset.org/abstracts/search?q=patch%20antenna" title=" patch antenna"> patch antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=slot%20coupled" title=" slot coupled"> slot coupled</a>, <a href="https://publications.waset.org/abstracts/search?q=base%20station%20antenna" title=" base station antenna"> base station antenna</a> </p> <a href="https://publications.waset.org/abstracts/80571/a-low-profile-dual-polarized-slot-coupled-patch-antenna" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80571.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">462</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">339</span> Curved Rectangular Patch Array Antenna Using Flexible Copper Sheet for Small Missile Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jessada%20Monthasuwan">Jessada Monthasuwan</a>, <a href="https://publications.waset.org/abstracts/search?q=Charinsak%20Saetiaw"> Charinsak Saetiaw</a>, <a href="https://publications.waset.org/abstracts/search?q=Chanchai%20Thongsopa"> Chanchai Thongsopa </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the development and design of the curved rectangular patch arrays antenna for small missile application. This design uses a 0.1mm flexible copper sheet on the front layer and back layer, and a 1.8mm PVC substrate on a middle layer. The study used a small missile model with 122mm diameter size with speed 1.1 Mach and frequency range on ISM 2.4 GHz. The design of curved antenna can be installation on a cylindrical object like a missile. So, our proposed antenna design will have a small size, lightweight, low cost, and simple structure. The antenna was design and analysis by a simulation result from CST microwave studio and confirmed with a measurement result from a prototype antenna. The proposed antenna has a bandwidth covering the frequency range 2.35-2.48 GHz, the return loss below -10 dB and antenna gain 6.5 dB. The proposed antenna can be applied with a small guided missile effectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rectangular%20patch%20arrays" title="rectangular patch arrays">rectangular patch arrays</a>, <a href="https://publications.waset.org/abstracts/search?q=small%20missile%20antenna" title=" small missile antenna"> small missile antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=antenna%20design%20and%20simulation" title=" antenna design and simulation"> antenna design and simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=cylinder%20PVC%20tube" title=" cylinder PVC tube"> cylinder PVC tube</a> </p> <a href="https://publications.waset.org/abstracts/2276/curved-rectangular-patch-array-antenna-using-flexible-copper-sheet-for-small-missile-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2276.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">313</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">338</span> Studies of Substituent and Solvent Effect on Spectroscopic Properties Of 6-OH-4-CH3, 7-OH-4-CH3 and 7-OH-4-CF3 Coumarin</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sanjay%20Kumar">Sanjay Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper reports the solvent effects on the electronic absorption and fluorescence emission spectra of 6-OH-4-CH3, 7-OH-4-CH3 and 7-OH-4-CF3 coumarin derivatives having -OH, -CH3 and -CF3 substituent at different positions in various solvents (Polar and Non-Polar). The first excited singlet state dipole moment and ground state dipole moment were calculated using Bakhshiev, Kawski-Chamma-Viallet and Reichardt-Dimroth equations and were compared for all the coumarin studied. In all cases the dipole moments were found to be higher in the excited singlet state than in the ground state indicating a substantial redistribution of Π-electron density in the excited state. The angle between the excited singlet state and ground state dipole moment is also calculated. The red shift of the absorption and fluorescence emission bands, observed for all the coumarin studied upon increasing the solvent polarity indicating that the electronic transitions were Π → Π* nature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coumarin" title="coumarin">coumarin</a>, <a href="https://publications.waset.org/abstracts/search?q=solvent%20effects" title=" solvent effects"> solvent effects</a>, <a href="https://publications.waset.org/abstracts/search?q=absorption%20spectra" title=" absorption spectra"> absorption spectra</a>, <a href="https://publications.waset.org/abstracts/search?q=emission%20spectra" title=" emission spectra"> emission spectra</a>, <a href="https://publications.waset.org/abstracts/search?q=excited%20singlet%20state%20dipole%20moment" title=" excited singlet state dipole moment"> excited singlet state dipole moment</a>, <a href="https://publications.waset.org/abstracts/search?q=ground%20state%20dipole%20moment" title=" ground state dipole moment"> ground state dipole moment</a>, <a href="https://publications.waset.org/abstracts/search?q=solvatochromism" title=" solvatochromism"> solvatochromism</a> </p> <a href="https://publications.waset.org/abstracts/29723/studies-of-substituent-and-solvent-effect-on-spectroscopic-properties-of-6-oh-4-ch3-7-oh-4-ch3-and-7-oh-4-cf3-coumarin" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29723.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">833</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">337</span> Octagon Shaped Wearable Antenna for Band at 4GHz</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Khazini">M. Khazini</a>, <a href="https://publications.waset.org/abstracts/search?q=M.Damou"> M.Damou</a>, <a href="https://publications.waset.org/abstracts/search?q=Z.%20Souar"> Z. Souar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, octagon antenna ultra wideband (UWB) low band wearable antenna designs have been proposed for in-body to on-body communication channel of wireless. Single element antenna, dual elements, are designed and compared in free space and in body proximity. Conformal design has been focused. Liquid crystal polymer (LCP) is a material that has gained attention as a potential high-performance microwave substrate and packaging material. This investigation uses several methods to determine the electrical properties of LCP for millimeter-wave frequencies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ultra%20wideband" title="ultra wideband">ultra wideband</a>, <a href="https://publications.waset.org/abstracts/search?q=wearable%20antenna" title=" wearable antenna"> wearable antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=slot%20antenna" title=" slot antenna"> slot antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20crystal%20polymer%20%28LCP%29" title=" liquid crystal polymer (LCP)"> liquid crystal polymer (LCP)</a>, <a href="https://publications.waset.org/abstracts/search?q=CST%20studio" title=" CST studio"> CST studio</a> </p> <a href="https://publications.waset.org/abstracts/43758/octagon-shaped-wearable-antenna-for-band-at-4ghz" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43758.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">360</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">336</span> CPW-Fed Broadband Circularly Polarized Planar Antenna with Improved Ground</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gnanadeep%20Gudapati">Gnanadeep Gudapati</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20Annie%20Grace"> V. Annie Grace</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A broadband circular polarization (CP) feature is designed for a CPW-fed planar printed monopole antenna. A rectangle patch and an improved ground plane make up the antenna. The antenna's impedance bandwidth can be increased by adding a vertical stub and a horizontal slit in the ground plane. The measured results show that the proposed antenna has a wide 10-dB return loss bandwidth of 70.2% (4.35GHz, 3.7-8.1GHz) centered at 4.2 GHz. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CPW-fed" title="CPW-fed">CPW-fed</a>, <a href="https://publications.waset.org/abstracts/search?q=circular%20polarised" title=" circular polarised"> circular polarised</a>, <a href="https://publications.waset.org/abstracts/search?q=FR4%20epoxy" title=" FR4 epoxy"> FR4 epoxy</a>, <a href="https://publications.waset.org/abstracts/search?q=slit%20and%20stub" title=" slit and stub"> slit and stub</a> </p> <a href="https://publications.waset.org/abstracts/144248/cpw-fed-broadband-circularly-polarized-planar-antenna-with-improved-ground" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144248.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">146</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">335</span> Coaxial Helix Antenna for Microwave Coagulation Therapy in Liver Tissue Simulations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Chaichanyut">M. Chaichanyut</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Tungjitkusolmun"> S. Tungjitkusolmun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper is concerned with microwave (MW) ablation for a liver cancer tissue by using helix antenna. The antenna structure supports the propagation of microwave energy at 2.45 GHz. A 1½ turn spiral catheter-based microwave antenna applicator has been developed. We utilize the three-dimensional finite element method (3D FEM) simulation to analyze where the tissue heat flux, lesion pattern and volume destruction during MW ablation. The configurations of helix antenna where Helix air-core antenna and Helix Dielectric-core antenna. The 3D FEMs solutions were based on Maxwell and bio-heat equations. The simulation protocol was power control (10 W, 300s). Our simulation result, both helix antennas have heat flux occurred around the helix antenna and that can be induced the temperature distribution similar (teardrop). The region where the temperature exceeds 50°C the microwave ablation was successful (i.e. complete destruction). The Helix air-core antenna and Helix Dielectric-core antenna, ablation zone or axial ratios (Widest/length) were respectively 0.82 and 0.85; the complete destructions were respectively 4.18 cm³ and 5.64 cm³. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=liver%20cancer" title="liver cancer">liver cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=Helix%20antenna" title=" Helix antenna"> Helix antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element" title=" finite element"> finite element</a>, <a href="https://publications.waset.org/abstracts/search?q=microwave%20ablation" title=" microwave ablation"> microwave ablation</a> </p> <a href="https://publications.waset.org/abstracts/43362/coaxial-helix-antenna-for-microwave-coagulation-therapy-in-liver-tissue-simulations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43362.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">309</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">334</span> Multiband Multipolarized Planar Antenna for WLAN/WiMAX Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sanjeeva%20Reddy">Sanjeeva Reddy</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Vakula"> D. Vakula</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A single layer, multi-band triangular patch antenna is proposed for WLAN/WiMAX applications with different polarization requirements. This probe feed patch is integrated with arc shaped slit to achieve circular polarized (CP) and linearly polarized (LP) radiation characteristics. The main contribution of antenna is to resonate the frequencies of 2.4 GHz with CP and 3.5 GHz, 5.28 GHz with LP. The design procedure of antenna is described and the performance is validated using measurements. Size of antenna is also reduced and provides stable gain at all resonant frequencies. Proposed structure also provides better enhancement in terms of 10-dB impedance bandwidth, achieved gain of 5.1, 5.6, and 2.9 dBi at respective bands. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=circular%20polarization" title="circular polarization">circular polarization</a>, <a href="https://publications.waset.org/abstracts/search?q=arc%20shaped%20slit" title=" arc shaped slit"> arc shaped slit</a>, <a href="https://publications.waset.org/abstracts/search?q=multi%20band%20antenna" title=" multi band antenna"> multi band antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=triangular%20patch%20antenna" title=" triangular patch antenna"> triangular patch antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=axial%20ratio" title=" axial ratio"> axial ratio</a> </p> <a href="https://publications.waset.org/abstracts/16044/multiband-multipolarized-planar-antenna-for-wlanwimax-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16044.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">397</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">333</span> Study, Design, Simulation and Fabrication of Microwave Slot Antenna</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khaled%20A.%20Madi">Khaled A. Madi</a>, <a href="https://publications.waset.org/abstracts/search?q=Rema%20A.%20Mousbahi"> Rema A. Mousbahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mostafa%20B.%20Abuitbel"> Mostafa B. Abuitbel</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdualhakim%20O.%20Nagi"> Abdualhakim O. Nagi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Antenna perhaps is the most important part of any communication system, it determines the overall efficiency and the direction of radiation of the system. Antennas vary in shape and size on a very wide range. For fast moving vehicles, the antenna should offer as litter aerodynamic resistance as possible. Slot antenna is best suited for this purpose. It offers very little aerodynamic resistance, compact, easy to feed and fabricate. This work presented in this paper deals with the investigation of a half wave slot antenna. The antenna has been studied, analyzed, designed, simulated, fabrication, and tested at the X-band. The field of antenna study is an extremely vast one, and to grasp the fundamentals, two pronged approaches have been used, and the focus was on the fabrication and testing of a slot waveguide directional antenna. Focuses on the design and simulation of slot antennas with an emphasis on optimization of a 9.1 GHz a rectangular waveguide have been used to feed slot antenna. A microwave fed slot antenna used in the communication lab was also simulated. The results have been presented and compared with the expected values, where a good agreement was achieved between the simulation and experimental results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microwave" title="microwave">microwave</a>, <a href="https://publications.waset.org/abstracts/search?q=slot%20antenna" title=" slot antenna"> slot antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=simulation" title=" simulation"> simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=fabrication" title=" fabrication"> fabrication</a> </p> <a href="https://publications.waset.org/abstracts/152371/study-design-simulation-and-fabrication-of-microwave-slot-antenna" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152371.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> 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