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2021 International Symposium on Antennas and Propagation (ISAP)最新文献

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Multipath Tracking of On-Body Tag in Linear and Spin Motions 体上标签线性运动和自旋运动的多路径跟踪
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614385
Xiaochen Liu, Ibrahim Bilal, Y. Miao
{"title":"Multipath Tracking of On-Body Tag in Linear and Spin Motions","authors":"Xiaochen Liu, Ibrahim Bilal, Y. Miao","doi":"10.23919/ISAP47258.2021.9614385","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614385","url":null,"abstract":"In this paper, we present the multipath tracking results of an on-body tag in linear and spin motions. We use an ultra-wideband (UWB) off-the-shelf Decawave kit for channel impulse response (CIR) acquisition, where a two-antenna anchor is fixed in space and a single-antenna tag is placed on a person’s chest. The multipath is extracted from the CIR at each snapshot by non-super-resolution CLEAN algorithm, and the extracted multipaths are tracked during the body movement. Two types of body motions are considered: translational linear movement and rotational spin movement. Both line-of-sight (LOS) and Non-LOS (NLOS) scenarios are incorporated. The results show that the multipaths’ track could well resemble the ground truth, and this observation is instructive for localizing on-body tag in NLOS scenarios with the assistance of, e.g., IMU.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124427521","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
Recent Achievements on Passive and Beam Steering Transmitarrays at Millimeter Waves 毫米波无源和波束导向发射阵列研究进展
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614452
Orestis Koutsos, Reda Madi, F. F. Manzillo, M. Śmierzchalski, A. Clemente, R. Sauleau
{"title":"Recent Achievements on Passive and Beam Steering Transmitarrays at Millimeter Waves","authors":"Orestis Koutsos, Reda Madi, F. F. Manzillo, M. Śmierzchalski, A. Clemente, R. Sauleau","doi":"10.23919/ISAP47258.2021.9614452","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614452","url":null,"abstract":"This paper reports an overview of recent advancements on transmitarray antennas at CEA-Leti in collaboration with IETR. Two fixed-beam and an electronically-steerable prototypes are presented. The first fixed-beam transmitarray radiates orthogonal linear polarizations at K/Ka-band. The second achieves wideband high-gain performance at 300 GHz using low-cost vialess technology. The reconfigurable transmitarray leverages on an efficient and low-power solution to attain beam steering and switchable circular polarization at Ka-band. Excellent scanning capabilities in a field of view of ±60°, with low axial ratio are experimentally demonstrated.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"42 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124470418","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
Circularly Polarized Conical Radiation from a Metaspiral Antenna 元螺旋天线的圆极化圆锥辐射
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614508
H. Nakano, T. Abe, J. Yamauchi
{"title":"Circularly Polarized Conical Radiation from a Metaspiral Antenna","authors":"H. Nakano, T. Abe, J. Yamauchi","doi":"10.23919/ISAP47258.2021.9614508","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614508","url":null,"abstract":"Circularly polarized (CP) conical radiation is formed using a metaspiral antenna made of c-type metaatoms. Electric current band theory predicts that the rotational sense of CP conical radiation will become left-handed at a low frequency of fN and right-handed at a high frequency of fH. The prediction is confirmed by simulation results obtained using an electromagnetic field solver based on the finite element method.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124493615","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
Analysis of Glide-Symmetric FSS Structures from a Circuit Model Standpoint 从电路模型的角度分析滑动对称FSS结构
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614568
Antonio Alex‐Amor, F. Mesa, Á. Palomares‐Caballero, C. Molero, P. Padilla
{"title":"Analysis of Glide-Symmetric FSS Structures from a Circuit Model Standpoint","authors":"Antonio Alex‐Amor, F. Mesa, Á. Palomares‐Caballero, C. Molero, P. Padilla","doi":"10.23919/ISAP47258.2021.9614568","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614568","url":null,"abstract":"This paper presents the application of a rigorous equivalent circuit approach (ECA), based on a Floquet modal expansion, for the analysis of frequency selective surfaces (FSS) formed by periodic arrays of apertures stacked in a glide-symmetric configuration. Some numerical examples are explored, showing a good agreement with full-wave results.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125883206","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
Calibration Factor Pattern for Isotropy Simulation and Measurement of Three-Axis Electric Field Probes 三轴电场探头各向同性模拟与测量的校正因子模式
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614610
Haoyan Ma, Zheng Wang, Qiuyi Zhang, Shunli Li, Hongxin Zhao, Xiaoxing Yin
{"title":"Calibration Factor Pattern for Isotropy Simulation and Measurement of Three-Axis Electric Field Probes","authors":"Haoyan Ma, Zheng Wang, Qiuyi Zhang, Shunli Li, Hongxin Zhao, Xiaoxing Yin","doi":"10.23919/ISAP47258.2021.9614610","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614610","url":null,"abstract":"In this paper, calibration factor (CF) pattern is proposed for simulation and calibration of electric field (E-field) probes to obtain isotropy and CF simultaneously. Two E-field probes with different isotropy level, constructed of three-axis dipoles or patches, are simulated to illustrate how the CF pattern depict isotropy of the probes. By comparing simulation results of the two probes, it is suggested that the CF patterns could illustrate isotropy of the probes well, and CF could be obtained simultaneously. Moreover, the results reveal that isotropy of the E-field probe should be comprehensively investigated by measuring CF patterns on different planes especially when the E-field probes are of different configurations.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124888440","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
A Filtering Hemispherical Dielectric Resonator Antenna 滤波半球形介质谐振器天线
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614520
Xiyao Liu, K. Leung, N. Yang
{"title":"A Filtering Hemispherical Dielectric Resonator Antenna","authors":"Xiyao Liu, K. Leung, N. Yang","doi":"10.23919/ISAP47258.2021.9614520","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614520","url":null,"abstract":"A filtering hemisphere dielectric resonator (DR) antenna (DRA) is presented. It consists of a conventional hemisphere DR, a ladder-like feeding line, and three slots etched in the ground. In this antenna, three modes, which are the fundamental TE111 DR mode and two slot modes are excited simultaneously. By making use of the mode-cancelling effect, two independently tunable radiation nulls are obtained beside the passband, producing filtering responses. Simulated results show that our antenna has a -10-dB impedance bandwidth of 17.4%, a gain of ~5.7 dBi, and a suppression level of 19 dB.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128892582","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
Band Enhancement of a Compact Flexible Antenna for WLAN, Wi-Fi and C-Band Applications 用于WLAN、Wi-Fi和c波段应用的紧凑型柔性天线的频带增强
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614454
W. A. Awan, Musa Husain, M. Alibakhshikenari, E. Limiti
{"title":"Band Enhancement of a Compact Flexible Antenna for WLAN, Wi-Fi and C-Band Applications","authors":"W. A. Awan, Musa Husain, M. Alibakhshikenari, E. Limiti","doi":"10.23919/ISAP47258.2021.9614454","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614454","url":null,"abstract":"Design and analysis of a wideband compact flexible antenna is presented in this paper. The bandwidth enhancement of conventional triangular quarter wave monopole antenna is achieved by utilizing the combination of a fractal structure along with open ended stub. Moreover, the flexibility analysis was studied to show the stability of presented work for conformal analysis. Furthermore, compact size, wideband, stable performance in flexibility condition makes the proposed work potential candidate for WLAN, Wi-Fi and C-band Applications.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130938978","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: 6
Optimization of a Metasurface Antenna Composed of Dual T-shaped Antenna Elements Based On Machine Learning 基于机器学习的双t形天线元表面天线优化
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614410
Li Zhang, Lijia Chen, Zhuli Yuan, Shengchang Lan
{"title":"Optimization of a Metasurface Antenna Composed of Dual T-shaped Antenna Elements Based On Machine Learning","authors":"Li Zhang, Lijia Chen, Zhuli Yuan, Shengchang Lan","doi":"10.23919/ISAP47258.2021.9614410","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614410","url":null,"abstract":"In the antenna design process, traditional electromagnetic full-wave simulation requires too much time and computing resources. As an emerging technology, machine learning(ML) is applied in the field of antenna design, with good performance, and can solve the problems in the above-mentioned traditional methods. This paper proposes a metasurface antenna composed of dual T-shaped antenna elements, and uses deep learning methods to optimize its geometric parameters. The resonant frequency of the proposed antenna is 7.9GHz and 13GHz. The gain in the 13GHz can reach 16.58dBi .","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131732824","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
Realization of Broadband Butler Matrix-based Beamforming Network Using Reconfigurable Synthesized Transmission Lines 利用可重构综合传输线实现宽带管家矩阵波束形成网络
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614379
The Hop Hoang, Huy Nam Chu, T. Ma
{"title":"Realization of Broadband Butler Matrix-based Beamforming Network Using Reconfigurable Synthesized Transmission Lines","authors":"The Hop Hoang, Huy Nam Chu, T. Ma","doi":"10.23919/ISAP47258.2021.9614379","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614379","url":null,"abstract":"A broadband beam forming network (BFN) based on a 4-way Butler matrix is proposed to provide full beam steering capability. The key component in fulfilling the design is a broadband tunable power divider (TPD), whose power division ratio (PDR) can be theoretically tuned from –∞ to +∞ with a low reflection coefficient, and with good port to port isolation from 2.16 GHz to 2.64 GHz. The TPD is designed based on phase reconfigurable synthesized transmission lines (PRSTLs) as the tuning elements, in which the characteristic impedance is kept unaltered during phased tuning. In order to achieve continuous beam steering capability, two beam ports of the Butler matrix are excited with an appropriate weighting factor between signals, which is generated and controlled by the TPD. The average transmission loss of the feeding network is -3.5 dB and the average deviation of the progressive phase shift at the output ports is less than 20° from 2.16 GHz to 2.64 GHz.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129185998","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
The Design of A Single-Layer High-Gain Reflectarray Antenna with Polarization Conversion 具有偏振转换的单层高增益反射天线的设计
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614453
Min Wang, Yuxin Mo, Ya Liao, Zhengchuan Chen
{"title":"The Design of A Single-Layer High-Gain Reflectarray Antenna with Polarization Conversion","authors":"Min Wang, Yuxin Mo, Ya Liao, Zhengchuan Chen","doi":"10.23919/ISAP47258.2021.9614453","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614453","url":null,"abstract":"In this paper, a single-layer high-gain reflectarray antenna with polarization conversion is presented. The proposed reflectarray element consists of a top metallic patch, a dielectric layer and a metallic ground. And the top metallic patch is asymmetric along the x-axis and y-axis, by varying patch size and flipping the top metallic patch 180° along x-axis, full 360° reflected phase coverage with low loss is achieved. Meanwhile, the element has performance of polarization conversion. The polarization of the incident wave and the reflected wave are orthogonal. Furthermore, a 20° offset-fed single-layer high-gain reflectarray with a square aperture is composed by 26 × 26 antenna elements (390 mm × 390 mm) is proposed. The simulated gain is 31.1 dBi @10.0 GHz, and the aperture efficiency is 60.6% @10.0 GHz. The simulated 1-dB and 3-dB gain bandwidth are 14.0% (9.4 GHz – 10.8 GHz) and 23.0% (8.9 GHz – 11.2 GHz) @10.0 GHz, respectively.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128845739","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
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