2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)最新文献

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1-bit Multipolarization Reconfigurable Metasurface for Dynamic Focusing 用于动态聚焦的1位多极化可重构元表面
Hongmei Li, Huiying Zhang
{"title":"1-bit Multipolarization Reconfigurable Metasurface for Dynamic Focusing","authors":"Hongmei Li, Huiying Zhang","doi":"10.1109/AP-S/USNC-URSI47032.2022.9887190","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9887190","url":null,"abstract":"The reconfigurable metasurface improves the flexibility of the metasurface and solves the problem that the characteristics including the focus and focal length cannot be changed after the traditional focusing metasurface design is completed. Combining the metasurface with active phase shifter such as PIN diode to form a reconfigurable metasurface, the resonant status of the element can be changed by switching the diode. However, the flexibility of element polarization is often required in practical applications, which needs to be achieved by increasing the number of diodes. In this paper, we propose a 1-bit multipolarization reconfigurable metasurface element containing two diodes and one DC bias line. The 1-bit phase shift is achieved within 180°±20° at 5.56~6.38 GHz. Then a 20*20 array is formed to verify the dynamic focusing function, and the simulation results demonstrate the effectiveness of the proposed method.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131110543","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}
引用次数: 0
On the Dielectric Characterization of Biological Samples for Microwave Imaging Reconstruction 微波成像重建中生物样品介电特性的研究
P. Samaddar, Sunil Gaddam, Muhammad Khan, Sayan Roy, D. Mitra, S. P. Arunachalam
{"title":"On the Dielectric Characterization of Biological Samples for Microwave Imaging Reconstruction","authors":"P. Samaddar, Sunil Gaddam, Muhammad Khan, Sayan Roy, D. Mitra, S. P. Arunachalam","doi":"10.1109/AP-S/USNC-URSI47032.2022.9887074","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9887074","url":null,"abstract":"Dielectric characteristics of tissues can be useful to develop new therapies and diagnostics through microwave imaging reconstruction. For accurate measurements, dielectric testing probe needs to be placed inside the tissue. This maximizes the contact between the probe-end and the tissue for better results. In practice, tissue samples may not always have enough depth for probe placement. This paper presents a study using the finite integration technique (FIT)-based 3D electromagnetic full-wave simulations to investigate the feasibility of a slim-form probe placed on top of the tissue (zero insertion depth). Complex permittivity of the biological tissue samples was calculated using the simulation results to match the tissue’s characteristics based on a previously proposed mathematical model. Overall, very good agreement was observed between the analytical and calculated dielectric characteristics of biological tissues up to 8 GHz frequency.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133706394","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}
引用次数: 4
Knitted Antenna Design for UHF RFID and Wearable IoT Applications 超高频RFID和可穿戴物联网应用的针织天线设计
Abubakar Sharif, Muhammad Zulfiqar Ali, K. Arshad, Khaled Assaleh, M. Imran, Q. Abbasi
{"title":"Knitted Antenna Design for UHF RFID and Wearable IoT Applications","authors":"Abubakar Sharif, Muhammad Zulfiqar Ali, K. Arshad, Khaled Assaleh, M. Imran, Q. Abbasi","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886911","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886911","url":null,"abstract":"This paper presented a knitted antenna design for ultra-high frequency (UHF) radiofrequency identification (RFID) and wearable internet of things (IoT) applications. The proposed antenna consists of a dual slot-match structure that provides a good impedance match with RFID microchip on high permittivity surfaces such as the human body. The slot-match structure is designed and optimized using characteristic mode analysis (CMA). The slot-match structure poses a very high inductive impedance and very low real impedance in free space. However, this impedance behavior helps in countering high capacitive effects caused by the human body and other high permittivity materials. The proposed antenna is fabricated by knitting using conductive thread. This antenna design features a read range of 2.4 m measured using an RFID reader setup after placing the tag on the human body abdomen. Moreover, the proposed antennas can be used as a sensor for vital signs or breath monitoring as its stretched state provide less read range as compared to the unstretched state. Therefore, the proposed antenna design can be used for UHF RFID, sensing, and wearable IoT applications.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133247612","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}
引用次数: 0
Cloaking of Cylindrical Objects with Graphene-Metasurface Structures for Low-Terahertz Applications 低太赫兹应用中石墨烯超表面结构对圆柱形物体的隐形
S. Pawar, Hossein Mehrpour Bernety, A. Yakovlev
{"title":"Cloaking of Cylindrical Objects with Graphene-Metasurface Structures for Low-Terahertz Applications","authors":"S. Pawar, Hossein Mehrpour Bernety, A. Yakovlev","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886308","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886308","url":null,"abstract":"It is a common practice for most of the theoretical studies to assume an ultra-high mobility and/or high value of chemical potential for graphene to realize its various functionalities such as perfect absorption, transmission, cloaking, etc. However, it is very difficult to actually fabricate such nano-patterned graphene structure, thus compromising its practical performance, despite the appeal of theoretical predictions. In this paper, we present a graphene-metasurface structure, taking inspiration from the design in ‘X. Wang and S. A. Tretyakov, IEEE Trans. Antenna Propag., vol. 67, no. 6, 2019'. When this specific metasurface is enveloped around cylindrical objects, the scattering width of the object reduces noticeably, thereby implying the cloaking effect. Our design utilizes extremely low values for mobility and chemical potential of graphene, making it highly desirable for practical applications.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123188175","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}
引用次数: 1
All-Fabric Bandage Antenna for RF Information and Power Transfer in Healthcare Applications 用于医疗保健应用中的射频信息和功率传输的全纤维绷带天线
Irfan Ullah, M. Wagih, S. Beeby
{"title":"All-Fabric Bandage Antenna for RF Information and Power Transfer in Healthcare Applications","authors":"Irfan Ullah, M. Wagih, S. Beeby","doi":"10.1109/AP-S/USNC-URSI47032.2022.9887310","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9887310","url":null,"abstract":"This work presents the first antenna invisibly concealed in an all-fabric bandage, with an ultra-low profile (0.001 the wavelength) for sub-1 GHz applications. Antenna parameters, such as the reflection coefficients, mutual coupling, radiation patterns, radiation efficiency, and the Specific Absorption Rate (SAR), were investigated in free space as well as in the presence of human tissue. The antenna’s channel gain over a 60 cm link with a standard RFID antenna is at least −37 dB and −23.6 dB, in the presence and absence of the body, respectively, which indicates the antenna’s suitability for communication and wireless power transfer applications. The all-fabric dipole antenna exhibits the attractive features of being flexible, low-profile, lightweight, easily to fabricate, and conformable to the body and therefore, can be used for designing wireless and battery-free smart bandage for wound healing applications.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127815586","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}
引用次数: 0
Tri-Polarization Reconfigurable Patch Antenna for ISM Application 面向ISM应用的三极化可重构贴片天线
Joseph E. Diener, A. Elsherbeni
{"title":"Tri-Polarization Reconfigurable Patch Antenna for ISM Application","authors":"Joseph E. Diener, A. Elsherbeni","doi":"10.1109/AP-S/USNC-URSI47032.2022.9887342","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9887342","url":null,"abstract":"Reconfigurable antennas have seen increasing interest in recent years, due to their ability to dynamically change their operating frequency or radiation characteristics. Polarization reconfigurable antennas are of use in diversity schemes, where multiple differently polarized antennas can be replaced by a single reconfigurable antenna. We present the design and analysis of a wideband tri-polarized reconfigurable antenna. The antenna is capable of producing left-handed, right- handed, and linearly polarized radiation. A biasing scheme is proposed to allow for a pair of PIN diodes to switch the antenna radiation states. The circularly polarized state has a broad band match of ~17% bandwidth, with an overlapping match in the linearly polarized state in the 5.8GHz ISM band.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127820335","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}
引用次数: 0
Fabry-Perot Cavity Antenna for Tri-Band Array Environment with Radome 天线罩三波段阵列环境下的法布里-珀罗腔天线
E. C. Wayton, J. Lee
{"title":"Fabry-Perot Cavity Antenna for Tri-Band Array Environment with Radome","authors":"E. C. Wayton, J. Lee","doi":"10.1109/AP-S/USNC-URSI47032.2022.9887284","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9887284","url":null,"abstract":"A multi-layer Fabry-Perot cavity antenna (FPCA) for increased boresight directivity is proposed for a high-band (HB) (3.4 – 4.2 GHz) array in a tri-band array environment with dielectric radome. Upon excitation of the HB dipoles in the baseline design, the radome behaves as a partially reflecting surface (PRS) which introduces reflected waves that destructively interfere with the incident wave at boresight at 4.1 GHz and 4.2 GHz. The superposition of these waves results in unacceptable boresight attenuation, leading to a reduction in the boresight directivity. The proposed FPCA reduces the boresight attenuation at 4.1 GHz and 4.2 GHz, thereby increasing the boresight directivity. The proposed technique shows a peak improvement in boresight directivity at 4.2 GHz from 10.3 dBi to 14.0 dBi, a 3.7 dB improvement, and a reduction in cross-polar radiation.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134459350","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}
引用次数: 0
Single Sideband Suppressed Carrier Modulator for C-Band Multiple Access FSO Communication c波段多址FSO通信的单边带抑制载波调制器
R. Sabri, H. Mosallaei
{"title":"Single Sideband Suppressed Carrier Modulator for C-Band Multiple Access FSO Communication","authors":"R. Sabri, H. Mosallaei","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886316","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886316","url":null,"abstract":"A Design procedure to realize a single sideband suppressed carrier (SSB-SC) modulator for free space optical (FSO) communication is theoretically presented. The operating principle relies on introducing spatiotemporal modulation into an indium-tin-oxide integrated plasmonic metasurface to obtain a time-varying output signal that is characterized by a sawtooth phase profile spanning on 2π and a constant amplitude. It is demonstrated that such spatiotemporal modulator transfers the incident signal into the first-order up-modulated sideband with more than 99% frequency conversion efficiency. The optical carrier suppression and undesired sideband rejection of 44 dB and 39 dB are calculated for the SSB-SC modulator, respectively. The application of the high-performance elements for multichannel multibeam scanning over a space-time shared-aperture platform is investigated. Thanks to the strong suppression of all undesired mixing products, the crosstalk between the channels with the same operating wavelength is significantly reduced.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127397709","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}
引用次数: 0
Dual Circularly Polarized All-Metal Orbital Angular Momentum Beam Reflectarray Antenna 双圆极化全金属轨道角动量波束反射天线
Z. Ahmed, Awab Muhammad, Shafaq Kausar, M. Ihsan
{"title":"Dual Circularly Polarized All-Metal Orbital Angular Momentum Beam Reflectarray Antenna","authors":"Z. Ahmed, Awab Muhammad, Shafaq Kausar, M. Ihsan","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886105","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886105","url":null,"abstract":"This paper presents an all-metal, dual-circularly polarized OAM beam reflectarray antenna operating at 30 GHz. A 15λ0×15λ0 OAM reflectarray having F/D ratio of 0.6 is designed to produce Bessel beam with mode number, l = 1, and cone angle of 15°. The reflectarray consists of a low-loss square-shaped metallic unit cell independent of the polarization of the incident waves. The dual-circular polarization is achieved using a pyramidal feed horn antenna with a square septum polarizer. The feed offers polarization diversity by switching between the two input ports of the septum polarizer.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"73 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127418462","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}
引用次数: 0
Electromagnetic Software Development. Legacy of Prof. Tapan K. Sarkar 电磁软件开发。Tapan K. Sarkar教授的遗产
D. García-Doñoro, L. García-Castillo, M. Salazar-Palma
{"title":"Electromagnetic Software Development. Legacy of Prof. Tapan K. Sarkar","authors":"D. García-Doñoro, L. García-Castillo, M. Salazar-Palma","doi":"10.1109/AP-S/USNC-URSI47032.2022.9887200","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9887200","url":null,"abstract":"The impact of Prof. Tapan K. Sarkar on the research and professional career of the authors of this paper has proved to be tremendous. Specifically, this paper presents relatively recent achievements related to the computational electromagnetics field in the form of commercial (or pre-commercial) software which authors have participated in and, in one way or the other, are part of the legacy of Prof. Tapan K. Sarkar.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133843789","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}
引用次数: 0
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