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

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Design of a Miniaturized Annular Ring Metamaterial Microstrip Antenna 一种小型化环形超材料微带天线的设计
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614626
Bei Zhang, Xiaofei Xu
{"title":"Design of a Miniaturized Annular Ring Metamaterial Microstrip Antenna","authors":"Bei Zhang, Xiaofei Xu","doi":"10.23919/ISAP47258.2021.9614626","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614626","url":null,"abstract":"A miniaturized annular ring microstrip antenna is designed by loading mushroom metamaterial structures. One annular ring antenna is numerically demonstrated using low dielectric constant materials with εr = 2.2. It is observed to resonate at 2.546GHz. The effective circumference for the new annular ring antenna is 0.67λg. Note that this value is much smaller than the conventional ring antenna with a circumference of nearly λg.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"3 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":"126473747","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
Design of Multifunctional Reflectarray Elements Based on the Switchable Ground Plane 基于可切换地平面的多功能反射元件设计
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614460
Xianbo Cao, Qiang Chen
{"title":"Design of Multifunctional Reflectarray Elements Based on the Switchable Ground Plane","authors":"Xianbo Cao, Qiang Chen","doi":"10.23919/ISAP47258.2021.9614460","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614460","url":null,"abstract":"In this paper, we proposed a novel multifunctional reflectarray (RA) element which consists of resistor layer, switchable ground plane (SGP) layer and ground layer. The SGP consists of a frequency selective surface (FSS) and four PIN diodes. By switching the status of diodes, the SGP operates as ground or transparency to the incident waves thus the distance between the resistor layer and the ground is changed accordingly, which makes the incident power reflected or absorbed by the proposed RA element. The principle is explained and the simulated results show that the reflection coefficient is - 0.18 dB for reflector status and - 20 dB for absorber status. Moreover, the dynamic control of the reflected amplitude can be easily realized by using resistors with different resistance. The additional control of the reflected amplitude makes RA antennas more flexible and powerful in realizing complicated beam-forming applications.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"31 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":"121483056","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: 2
Detection of buried targets under limited number of scans with a synthetic aperture radar 用合成孔径雷达在有限扫描次数下探测埋地目标
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614599
A. Uematsu, T. Nishibori
{"title":"Detection of buried targets under limited number of scans with a synthetic aperture radar","authors":"A. Uematsu, T. Nishibori","doi":"10.23919/ISAP47258.2021.9614599","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614599","url":null,"abstract":"Radar remote sensing of buried targets is widely conducted with ground penetrating radars (GPRs). Synthetic aperture radars (SAR) are widely used for monitoring of disaster, forest coverage, and infrastructure. For future utilization of airborne or spaceborne SAR monitoring of buried target, we investigated how to identify buried target for limited number of scans with using two-dimensional scanning GPR with synthetic aperture radar technique inside the room (GPR-SAR). Experiment of the radar imaging of multiple targets, buried and on the surface is conducted. Compared with 2-D and 1-D scans, it is possible to identified buried target adjacent to another target on the surface with 1-D scan as well as 2-D one.","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":"120957888","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
Switch-based Self-injection-locked Radar with Data Fusion Algorithm 基于开关的自注入锁定雷达数据融合算法
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614451
De-Ming Chian, Chao-Kai Wen, Wei-Chih Huang, Chun-Wei Liu, Fu-Kang Wang, T. Horng
{"title":"Switch-based Self-injection-locked Radar with Data Fusion Algorithm","authors":"De-Ming Chian, Chao-Kai Wen, Wei-Chih Huang, Chun-Wei Liu, Fu-Kang Wang, T. Horng","doi":"10.23919/ISAP47258.2021.9614451","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614451","url":null,"abstract":"In this study, we develop a switch-based SIL radar system for non-contact human vital-sign detection. Radar signals from multiple independent antennas in the back of a person are fused to expand the effective measurement area and mitigate body position effects. The system is low-cost, requiring only a single radar with multiple simple panel antennas instead of multiple radars with specialized body-coupled antennas. Experimental and simulation results show that the proposed system can provide excellent results under various body positions.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"7 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":"127490487","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
Passive Microwave Electric Field Display with Neon Light Bulb 霓虹灯无源微波电场显示
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614390
S. M. Chung, Ming-Tien Wu, Chao-Chun Ku, Wen-Jie Wang, Meng-Hann Shieh, S. Tuan
{"title":"Passive Microwave Electric Field Display with Neon Light Bulb","authors":"S. M. Chung, Ming-Tien Wu, Chao-Chun Ku, Wen-Jie Wang, Meng-Hann Shieh, S. Tuan","doi":"10.23919/ISAP47258.2021.9614390","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614390","url":null,"abstract":"To visualize the electric field distribution is of interest to High Power Microwave (HPM) research. Here we use a panel consists of 3600 6 mm diameter neon bulbs as a field display for a medium power 2.45 GHz source converted from a microwave oven. Commercial EM code with Multi-Level-Fast-Multipole-Method (MLFMM) algorithm is used to simulate the electric field distribution at a short distance. Such display can help decide which mode the microwave source is in.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"44 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":"133531055","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
Ultra Wide Band Dual-Feed Millimeter Wave Antenna 超宽带双馈毫米波天线
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614581
J. S. Sun, P. Chen, B. Chen
{"title":"Ultra Wide Band Dual-Feed Millimeter Wave Antenna","authors":"J. S. Sun, P. Chen, B. Chen","doi":"10.23919/ISAP47258.2021.9614581","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614581","url":null,"abstract":"Faster data throughput and low latency are the main development agenda in modern communication system. In addition to higher modulation rate, mm Wave also can achieve high data throughput, low latency and significance of results. In this paper, Ultra Wide Band Dual polarized Antenna is designed for post 5th Generation Wireless communications that can support n257 (25.6GHZ-29.5GHz), n258 (24.25GHZ-27.5GHz), n260(37GHz-40GHz) and n261 (27.5GHz-28.35GHz). Ultra wideband is limited to have higher antenna gain, however, antenna array design can improve antenna gain and radiation pattern, one dual feed antenna can provide two antenna radiation patterns,Antenna gain degradation by the tolerance of material can be improved by high power laser beam. The antenna covers 24.24 GHż29.5 GHz and 37 GHz~40 GHz and has a broad bandwidth both in low and high band frequency. The peak gain of high band frequency is 5.5dB and the peak gain of low band is 5.1 dB. The dimension of the antenna element can achieve as small size as of 10 mm x 10mm x1.844mm, and the size is suitable for mm Wave repeater application and mobile phone with mm Wave function.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"113 3 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":"133638505","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
Automatic Deployment Planning of 300-GHz-Band Wireless Fronthaul Link in Metropolitan Areas 城域300 ghz波段无线前传链路自动部署规划
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614556
A. Hirata
{"title":"Automatic Deployment Planning of 300-GHz-Band Wireless Fronthaul Link in Metropolitan Areas","authors":"A. Hirata","doi":"10.23919/ISAP47258.2021.9614556","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614556","url":null,"abstract":"In 6G mobile wireless fronthaul, it is planned that 300-GHz-band remote antenna units (RAUs) are mounted on traffic lights and street lights in order to achieve a short transmission distance with line-of-sight (LOS) environments. It is difficult to deploy a lot of THz wireless links with high density in metropolitan area with LOS environment and without inter-cell interference. This paper proposes an algorithm for automatic planning of 300-GHz-band wireless fronthaul link deployment. 87 RAUs were placed at the location of traffic lights/street lights read from the map at Shinjuku, Japan, and installed 46 RAUs on the rooftops of the buildings by automatic deployment algorithm in order to connect all RAUs to the center base station (BS) with LOS environment. We conducted radio wave propagation simulation, and simulation results showed that SNR and SINR of the automatically deployed 300-GHz-band wireless fronthaul links is below required standard demand of SNR for 100-Gbit/s data transmission.","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":"116901734","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
Antenna-in-Packages for Array Modularization at Millimeter-wave Frequencies and its Applications in 5G O-RAN 毫米波频率阵列模块化封装天线及其在5G O-RAN中的应用
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614538
H. Chou, Kuan-Hsun Wu, Zhao-He Lin, Zhi-Da Yan, D. Lin
{"title":"Antenna-in-Packages for Array Modularization at Millimeter-wave Frequencies and its Applications in 5G O-RAN","authors":"H. Chou, Kuan-Hsun Wu, Zhao-He Lin, Zhi-Da Yan, D. Lin","doi":"10.23919/ISAP47258.2021.9614538","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614538","url":null,"abstract":"In this paper, the design issues of antenna-in-package (AiP) is discussed to modularize arrays at millimeter-wave (mmW) frequencies for 5G applications. The current progress of AiP technologies at NTU is also summarized. The issues of considerations include different fabrication process, dielectric property deviation and mechanical limitations to realize the antenna structure. Antenna designs for various applications, ranging from user equipment, CPE to small cell BTS antennas, have been developed at different sizes. The radiation characteristics of these AiPs will be presented to demonstrate the behaviors of AiPs using these processes. Both full-wave simulations and experimental measurements will be presented to validate the AiP designs.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"28 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":"131199918","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
Demonstration of Radial Line Helical Phased Array with Antenna Elements Rotated by Motors 带马达旋转天线单元的径向线螺旋相控阵的演示
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614548
N. Nakamoto, Yusuke Suzuki, S. Yamaguchi, T. Fukasawa, Y. Inasawa, H. Miyashita
{"title":"Demonstration of Radial Line Helical Phased Array with Antenna Elements Rotated by Motors","authors":"N. Nakamoto, Yusuke Suzuki, S. Yamaguchi, T. Fukasawa, Y. Inasawa, H. Miyashita","doi":"10.23919/ISAP47258.2021.9614548","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614548","url":null,"abstract":"In this paper, we propose a novel radial line planar phased array in which helical antenna elements are individually rotated by their respective connected micromotors to realize dynamic beam-scanning. We designed, fabricated, and evaluated a 7-circle array with 168 helical antennas fabricated using molded interconnect device technology. The prototype antenna exhibits dynamic and accurate beam-forming performance, and also exhibits a low reflection coefficient of less than −17 and high antenna efficiency of 77%.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"21 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":"131277231","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
Low-Profile and Broadband Dielectric Resonator Antenna By Using Air Regions 利用空气区的低轮廓宽带介质谐振器天线
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614407
Y. Liu, Xu Li, Changfei Zhou, Hui Li, Lei Guo
{"title":"Low-Profile and Broadband Dielectric Resonator Antenna By Using Air Regions","authors":"Y. Liu, Xu Li, Changfei Zhou, Hui Li, Lei Guo","doi":"10.23919/ISAP47258.2021.9614407","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614407","url":null,"abstract":"A low profile dielectric resonator antenna (DRA) with wide impedance bandwidth is proposed by introducing the air regions. This proposed DRA is fed by two symmetrical slots. The DRA modes can be excited and merged to broaden the impedance bandwidth by inserting air regions insider the DRA. This DRA can achieve impedance bandwidth of 45.8% covering the frequency band of 3.2-5.1GHz. At the same time, it has very low profile of about 0.07λ0. A relatively stable gain is obtained around 6.25 dBi.","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":"131280223","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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