Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811038
F. Abushakra, N. Jeong, A. Awasthi, Shriniwas Kolpuke, Christopher D. Simpson, Jacob Pierce, Omid Reyhanigalangashi, Drew Taylor, S. Gogineni
This paper reports the design and application of a ceramic-based ultra-wideband (UWB) dielectric resonator antenna (DRA) mounted on an unmanned aerial vehicle (UAV). The proposed 8×1 DRA array covers the frequency band of 2.5-6 GHz with an 83% impedance bandwidth. The DRAs are excited with a trapezoidal patch at the front face to achieve wider bandwidth. The peak realized gain varies from 12 to 14 dBi with 95% efficiency over the operating band. A pair of transmit and receive antenna arrays is utilized in a UWB frequency modulated continuous wave (FMCW) radar for remote sensing applications. The isolation between the two antenna arrays is more than 45 dB while weighing only 255 gm with a footprint of 250×100 mm2. The antennas arrays are used to collect data to generate synthetic aperture radar (SAR) images for developing algorithms to estimate soil moisture and snow thickness.
{"title":"Ultra-Wideband Ceramic-Based Dielectric Resonator Antenna Array For Radar Applications","authors":"F. Abushakra, N. Jeong, A. Awasthi, Shriniwas Kolpuke, Christopher D. Simpson, Jacob Pierce, Omid Reyhanigalangashi, Drew Taylor, S. Gogineni","doi":"10.1109/iWAT54881.2022.9811038","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811038","url":null,"abstract":"This paper reports the design and application of a ceramic-based ultra-wideband (UWB) dielectric resonator antenna (DRA) mounted on an unmanned aerial vehicle (UAV). The proposed 8×1 DRA array covers the frequency band of 2.5-6 GHz with an 83% impedance bandwidth. The DRAs are excited with a trapezoidal patch at the front face to achieve wider bandwidth. The peak realized gain varies from 12 to 14 dBi with 95% efficiency over the operating band. A pair of transmit and receive antenna arrays is utilized in a UWB frequency modulated continuous wave (FMCW) radar for remote sensing applications. The isolation between the two antenna arrays is more than 45 dB while weighing only 255 gm with a footprint of 250×100 mm2. The antennas arrays are used to collect data to generate synthetic aperture radar (SAR) images for developing algorithms to estimate soil moisture and snow thickness.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"180 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126070547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811041
B. Alali, D. Zelenchuk, V. Fusco
In this paper, we show a new two-dimensional reflective metasurface augmented Luneburg lens antenna to operate at the Ka frequency band for 5G wireless communication systems. It consists of a half-circle 2D Luneburg lens and a 40-element microstrip patch reflective metasurface. The simulation results of the metasurface augmented Luneburg lens antenna illustrate its capability for beam-steering towards chosen directions by changing the distribution of the microstrip patches on the surface of the reflective metasurface which makes it a suitable application for beam-steering that may operate within the 5G communication frequency bands at 28 GHz.
{"title":"A 2D Reflective Metasurface Augmented Luneburg Lens Antenna for 5G Communications","authors":"B. Alali, D. Zelenchuk, V. Fusco","doi":"10.1109/iWAT54881.2022.9811041","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811041","url":null,"abstract":"In this paper, we show a new two-dimensional reflective metasurface augmented Luneburg lens antenna to operate at the Ka frequency band for 5G wireless communication systems. It consists of a half-circle 2D Luneburg lens and a 40-element microstrip patch reflective metasurface. The simulation results of the metasurface augmented Luneburg lens antenna illustrate its capability for beam-steering towards chosen directions by changing the distribution of the microstrip patches on the surface of the reflective metasurface which makes it a suitable application for beam-steering that may operate within the 5G communication frequency bands at 28 GHz.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128566350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811088
Chao Gu, V. Fusco, D. Zelenchuk, S. Cotton, Fei Cheng
This paper presents a conformal crossed dipole antenna at L/S – band. The two pairs of radiating arms are designed to be printed on the inner and outer surface of a thin spherical dielectric shell, which offers mechanical stability and performance improvement. Full-wave EM simulation is carried out to examine the performance of the proposed antenna compared with the reference design. It is shown how to mitigate the effect that the conformal dielectric loading of the shell has on the antenna operating frequency. The radiation performance is presented to prove that the conformal configuration of the crossed dipoles can have a broader axial ratio beamwidth and wider field of view at the resonant frequency with respect to its planar equivalent. The proposed antenna is suitable for applications such as global positioning satellite reception.
{"title":"Printed Conformal Crossed Dipole Antenna","authors":"Chao Gu, V. Fusco, D. Zelenchuk, S. Cotton, Fei Cheng","doi":"10.1109/iWAT54881.2022.9811088","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811088","url":null,"abstract":"This paper presents a conformal crossed dipole antenna at L/S – band. The two pairs of radiating arms are designed to be printed on the inner and outer surface of a thin spherical dielectric shell, which offers mechanical stability and performance improvement. Full-wave EM simulation is carried out to examine the performance of the proposed antenna compared with the reference design. It is shown how to mitigate the effect that the conformal dielectric loading of the shell has on the antenna operating frequency. The radiation performance is presented to prove that the conformal configuration of the crossed dipoles can have a broader axial ratio beamwidth and wider field of view at the resonant frequency with respect to its planar equivalent. The proposed antenna is suitable for applications such as global positioning satellite reception.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128356449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811030
O. Zetterstrom, A. Algaba-Brazález, O. Quevedo–Teruel
In this contribution, planar Luneburg lens antennas are discussed. It is noted that the high radiation efficiency and wide scanning capabilities of planar Luneburg lens antennas make them attractive for the next generations of communication systems. We demonstrate that planar Luneburg lens antennas can scan in a 120 degrees range with negligible scan losses. Furthermore, a review of the reported planar Luneburg lenses is provided.
{"title":"Planar Luneburg Lens Antennas for 5G and 6G Millimetre Wave Communications","authors":"O. Zetterstrom, A. Algaba-Brazález, O. Quevedo–Teruel","doi":"10.1109/iWAT54881.2022.9811030","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811030","url":null,"abstract":"In this contribution, planar Luneburg lens antennas are discussed. It is noted that the high radiation efficiency and wide scanning capabilities of planar Luneburg lens antennas make them attractive for the next generations of communication systems. We demonstrate that planar Luneburg lens antennas can scan in a 120 degrees range with negligible scan losses. Furthermore, a review of the reported planar Luneburg lenses is provided.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125664089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811051
Elizabeth Bekker, Akanksha Bhutani, Lucas Giroto de Oliveira, T. Antes, T. Zwick
Two single-ended split ring resonator-based antennas are demonstrated in standard embedded wafer level ball grid array (eWLB) packaging technology - a two-element, capacitively-fed, square split ring resonator (SSRR) antenna array and a round SRR antenna (RSRR). The RSRR has a peak gain of 6.4 dBi and a relative bandwidth of 20.8%; the capacitively-fed SSRR array has a peak gain of 6.9 dBi and relative bandwidth of 28.6%. The array has one of the widest bandwidths of millimeter-wave arrays, 60 GHz and above, realized in eWLB packaging. All the antennas have a ground plane reflector realized on a Rogers 4003C substrate. Measured and simulated return loss, gain and radiation pattern results agree well for both the RSRR antenna and the SSRR array.
{"title":"Broadband Split Ring Resonator-Based Antennas at 140 GHz in Embedded Wafer Level Ball Grid Array Technology","authors":"Elizabeth Bekker, Akanksha Bhutani, Lucas Giroto de Oliveira, T. Antes, T. Zwick","doi":"10.1109/iWAT54881.2022.9811051","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811051","url":null,"abstract":"Two single-ended split ring resonator-based antennas are demonstrated in standard embedded wafer level ball grid array (eWLB) packaging technology - a two-element, capacitively-fed, square split ring resonator (SSRR) antenna array and a round SRR antenna (RSRR). The RSRR has a peak gain of 6.4 dBi and a relative bandwidth of 20.8%; the capacitively-fed SSRR array has a peak gain of 6.9 dBi and relative bandwidth of 28.6%. The array has one of the widest bandwidths of millimeter-wave arrays, 60 GHz and above, realized in eWLB packaging. All the antennas have a ground plane reflector realized on a Rogers 4003C substrate. Measured and simulated return loss, gain and radiation pattern results agree well for both the RSRR antenna and the SSRR array.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131885939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811040
Qiaoshan Zhang, S. Gao, Lehu Wen, Xue-xia Yang
This invited paper reports our recent progress in the research on low-profile light-weight low-cost Ka-band electronically beam-scanning array antennas using printed reflectarray antennas. The traditional reflectarray antenna has a bulky size, as it is illuminated by a feed (such as a horn) and the thickness is proportional to the aperture size of reflectarray. To significantly reduce the thickness of reflectarrays, a leaky-wave feed is employed to illuminate the reflectarray while achieving high efficiency. The thickness of reflectarray antenna proposed here is < 3% of that of the traditional front-fed reflectarray with the same aperture size. Printed unit cell with two-bit phase resolution is employed to achieve electronically beam scanning of reflectarrays. This enables a significant reduction of the cost of antenna, compared to traditional phased arrays using a very large number of Ka-band phase shifters and RF front ends. The design and experimental results of the Ka-band beam-scanning refectarray antennas are presented and discussed. The Ka-band beam-scanning refectarray is shown to achieve an aperture efficiency of 35.1%. The results demonstrate that this antenna is promising for applications into Ka band satellite communications on the move and the 6G.
{"title":"Ultra-Thin Low-Cost Electronically-Beam-Scanning Reflectarray for Ka-Band Satellite Communications on the Move and 6G","authors":"Qiaoshan Zhang, S. Gao, Lehu Wen, Xue-xia Yang","doi":"10.1109/iWAT54881.2022.9811040","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811040","url":null,"abstract":"This invited paper reports our recent progress in the research on low-profile light-weight low-cost Ka-band electronically beam-scanning array antennas using printed reflectarray antennas. The traditional reflectarray antenna has a bulky size, as it is illuminated by a feed (such as a horn) and the thickness is proportional to the aperture size of reflectarray. To significantly reduce the thickness of reflectarrays, a leaky-wave feed is employed to illuminate the reflectarray while achieving high efficiency. The thickness of reflectarray antenna proposed here is < 3% of that of the traditional front-fed reflectarray with the same aperture size. Printed unit cell with two-bit phase resolution is employed to achieve electronically beam scanning of reflectarrays. This enables a significant reduction of the cost of antenna, compared to traditional phased arrays using a very large number of Ka-band phase shifters and RF front ends. The design and experimental results of the Ka-band beam-scanning refectarray antennas are presented and discussed. The Ka-band beam-scanning refectarray is shown to achieve an aperture efficiency of 35.1%. The results demonstrate that this antenna is promising for applications into Ka band satellite communications on the move and the 6G.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133489522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811017
H. S. Farahani, B. Rezaee, H. Paulitsch, W. Bösch
In this paper, we present a novel frequency selective antenna based on the distributed coupled-resonator (DCR) feeding network. The main idea is to design a high performance, compact and cost-effective antenna module with filtering functionality for mm-Wave phased arrays. The DCR structure with a simple and low-profile stack-up fabrication is effectively adopted to achieve a compact modular fourth-degree filtering antenna (Filtenna) with a steep roll-off rejection and directive radiation pattern. For demonstration, a 2×2 array of the Filtenna is separately designed and fabricated with the aim of phased array antenna fed by a Quad-channel beamformer. The experimental results of the Filtenna are well-agreed with the simulations demonstrating return-loss and realized-gain of 15 dB and 8 dBi, respectively. The proposed Filtenna array is operating at 31 GHz with bandwidth of 2 GHz (15 dB return loss) and in-phase directivity of 15.6 dBi. The proposed antenna is scalable to large arrays suitable for high gain applications like automotive radar, SATCOM and 5G.
{"title":"A Novel Frequency Selective Antenna for mm-Wave Phased Arrays","authors":"H. S. Farahani, B. Rezaee, H. Paulitsch, W. Bösch","doi":"10.1109/iWAT54881.2022.9811017","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811017","url":null,"abstract":"In this paper, we present a novel frequency selective antenna based on the distributed coupled-resonator (DCR) feeding network. The main idea is to design a high performance, compact and cost-effective antenna module with filtering functionality for mm-Wave phased arrays. The DCR structure with a simple and low-profile stack-up fabrication is effectively adopted to achieve a compact modular fourth-degree filtering antenna (Filtenna) with a steep roll-off rejection and directive radiation pattern. For demonstration, a 2×2 array of the Filtenna is separately designed and fabricated with the aim of phased array antenna fed by a Quad-channel beamformer. The experimental results of the Filtenna are well-agreed with the simulations demonstrating return-loss and realized-gain of 15 dB and 8 dBi, respectively. The proposed Filtenna array is operating at 31 GHz with bandwidth of 2 GHz (15 dB return loss) and in-phase directivity of 15.6 dBi. The proposed antenna is scalable to large arrays suitable for high gain applications like automotive radar, SATCOM and 5G.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127871975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811037
T. Fromenteze, O. Yurduseven, Philipp del Hougne, David Smith
The development of new imaging systems based on computational techniques greatly alleviate the hardware constraints usually encountered in these domains. The limitations associated with the use of highly redundant active chains are thus substituted by the development of radiating systems allowing the transfer of these limitations to the software layer. Faced with the large volumes of data to be processed, it is still necessary to propose numerical techniques to limit the size of the problems to be solved while ensuring that the imaging results remain exploitable for the targeted applications. Principal component analysis offers interesting insights in such a context.
{"title":"Principal component analysis for microwave and millimeter wave computational imaging","authors":"T. Fromenteze, O. Yurduseven, Philipp del Hougne, David Smith","doi":"10.1109/iWAT54881.2022.9811037","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811037","url":null,"abstract":"The development of new imaging systems based on computational techniques greatly alleviate the hardware constraints usually encountered in these domains. The limitations associated with the use of highly redundant active chains are thus substituted by the development of radiating systems allowing the transfer of these limitations to the software layer. Faced with the large volumes of data to be processed, it is still necessary to propose numerical techniques to limit the size of the problems to be solved while ensuring that the imaging results remain exploitable for the targeted applications. Principal component analysis offers interesting insights in such a context.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127873281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811033
Xuekang Liu, S. Gao, B. Sanz-Izquierdo, Haiwei Zhang
The theory, design and experiments of a wideband dual-polarized filtering antenna are presented. A novel technique, which combines the use of open loops, parasitic loop, and extended ground plane, is proposed to realize two upper band radiation nulls and a lower band radiation null. Thanks to these radiation nulls, the proposed antenna obtains a sharp cut-off at the edges of the operating band. To achieve wideband performance, another novel technique of exciting multiple resonant modes of the crossed dipoles and parasitic loop is proposed. The measured results demonstrate that this antenna achieves a wide impedance bandwidth from 1.7 to 3.01 GHz (56%), high isolation of 38dB, low cross-polarization within the working frequency band and also filtering performance. At 3.17 GHz, the gain of the antenna will drop rapidly to -18.1 dBi, which is 26.4 dB lower than the average in-band gain. These advantages make the proposed antenna a good candidate for base station applications.
{"title":"A Novel Differentially-Fed Dual-Polarized Filtering Antenna for Base Station","authors":"Xuekang Liu, S. Gao, B. Sanz-Izquierdo, Haiwei Zhang","doi":"10.1109/iWAT54881.2022.9811033","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811033","url":null,"abstract":"The theory, design and experiments of a wideband dual-polarized filtering antenna are presented. A novel technique, which combines the use of open loops, parasitic loop, and extended ground plane, is proposed to realize two upper band radiation nulls and a lower band radiation null. Thanks to these radiation nulls, the proposed antenna obtains a sharp cut-off at the edges of the operating band. To achieve wideband performance, another novel technique of exciting multiple resonant modes of the crossed dipoles and parasitic loop is proposed. The measured results demonstrate that this antenna achieves a wide impedance bandwidth from 1.7 to 3.01 GHz (56%), high isolation of 38dB, low cross-polarization within the working frequency band and also filtering performance. At 3.17 GHz, the gain of the antenna will drop rapidly to -18.1 dBi, which is 26.4 dB lower than the average in-band gain. These advantages make the proposed antenna a good candidate for base station applications.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133944770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811043
V. Sharbati, Xiulong Bao, J. Healy
In this article, we present a novel UWB reconfigurable notch band antenna based on liquid metal switching capability. The band rejection reconfiguration is achieved by switching the two pentagonal shaped stubs with the circular patch. The mechanism of switching is based on controlling the liquid metal in microfluidic channels by applying voltage on circular patch and pentagonal shaped stub. The proposed antenna has a simple configuration and compact size of 27 × 30 mm2 that covers UWB (3.1-10.8 GHz) and also generates the band rejection in WiMAX (3.5 GHz) and WiFi (5.2 GHz) by changing state of the switches that is suitable for cognitive radio system.
{"title":"Reconfigurable Notch-Band Antenna Based on Liquid Metal Switching Capability","authors":"V. Sharbati, Xiulong Bao, J. Healy","doi":"10.1109/iWAT54881.2022.9811043","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811043","url":null,"abstract":"In this article, we present a novel UWB reconfigurable notch band antenna based on liquid metal switching capability. The band rejection reconfiguration is achieved by switching the two pentagonal shaped stubs with the circular patch. The mechanism of switching is based on controlling the liquid metal in microfluidic channels by applying voltage on circular patch and pentagonal shaped stub. The proposed antenna has a simple configuration and compact size of 27 × 30 mm2 that covers UWB (3.1-10.8 GHz) and also generates the band rejection in WiMAX (3.5 GHz) and WiFi (5.2 GHz) by changing state of the switches that is suitable for cognitive radio system.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115779314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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