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2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)最新文献

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A Dual-polarized Aperture-coupled Patch Antenna for n257 Excited by Coplanar Line 共面线激励的n257双极化孔耦合贴片天线
2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2022-09-05 DOI: 10.1109/apwc49427.2022.9900036
Yuta Hasegawa, Koichiro Masuko, N. Guan
{"title":"A Dual-polarized Aperture-coupled Patch Antenna for n257 Excited by Coplanar Line","authors":"Yuta Hasegawa, Koichiro Masuko, N. Guan","doi":"10.1109/apwc49427.2022.9900036","DOIUrl":"https://doi.org/10.1109/apwc49427.2022.9900036","url":null,"abstract":"A dual-polarized patch antenna has been developed for n257 beam-forming application. A lot of 5G millimeter-wave applications require dual-polarized antennas that have broad bandwidth and broad beam-scanning range. Generally, a patch antenna needs thick substrate between the antenna and ground in order to achieve wide bandwidth, but it is difficult to feed such thick antenna by using vias. For example, an aperture coupled patch antenna fed by strip line through slot on ground is used [1] , where the ground is put between the feed line and the antenna. When an aperture coupled antenna is mounted on a radio module on the opposite side of which RF-IC is mounted, it is necessary to sandwich the feed lines by multiple grounds. This results in the increasing of the number of layers used for the antenna. To reduce the number of layers, a coplanar feed line is applied between the antenna and ground in our antenna. Figure 1 shows the design of the proposed antenna. It consists of two patch antenna layers, two coplanar line layers and a ground layer. The antenna size is 3×3 mm 2 that enables the antenna to be aligned at a half wavelength interval. Thickness between the coplanar line and the ground layer is 0.1 mm and that between the coplanar line and the antenna is 0.3 mm. Direction of the upper coplanar line is orthogonal to that of the lower one. In Fig. 1 , the upper layer line generates horizontally polarized radiation and the lower one generates vertically polarized radiation. As the coplanar lines cross slits on the ground, electromagnetic field is excited and coupled to the patch antenna.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128686143","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
WPT Performance Analysis on Antenna Height Dependency between Circuit-Shape Leaky Waveguide and λ/2 Wavelength Dipole Antenna 电路型漏波导与λ/2波长偶极子天线天线高度相关性的WPT性能分析
2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2022-09-05 DOI: 10.1109/apwc49427.2022.9899954
M. Nakatsugawa, Y. Kanaya, T. Maruyama, M. Omiya, Y. Tamayama
{"title":"WPT Performance Analysis on Antenna Height Dependency between Circuit-Shape Leaky Waveguide and λ/2 Wavelength Dipole Antenna","authors":"M. Nakatsugawa, Y. Kanaya, T. Maruyama, M. Omiya, Y. Tamayama","doi":"10.1109/apwc49427.2022.9899954","DOIUrl":"https://doi.org/10.1109/apwc49427.2022.9899954","url":null,"abstract":"Antenna height dependency of the wireless power transmission (WPT) performance between a circuit-shape leaky waveguide and a λ /2 wavelength dipole antenna was simulated by the FDTD method. Microwave snow melting using microwave heating have been proposed to reduce snow removal workloads [1] . As a device to radiate microwaves to melt snow, the circuit-shape leaky waveguide with slot openings was proposed [2] . A pair of straight waveguides with slots and a pair of semicircular waveguides were connected in series like a car circuit so that a power fed from a feeding point could travel along the circuit-shape waveguide. The waveguide’s cross section was in line with WR-430. The feeding point was set at near one of borders between the straight and semicircular parts. Their S -parameters between the waveguide and a λ /2 dipole antenna located 15-mm or 30-mm above the waveguide were simulated by the FDTD method, from which WPT efficiencies were calculated.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"57 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131922807","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 High-Gain Quasi-Fractal Antenna with Wide Range Operation for 5G Applications over V-Band Spectrum 一种适用于5G v波段宽范围工作的高增益准分形天线
2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2022-09-05 DOI: 10.1109/APWC49427.2022.9899930
Syed Muhammad Rizvi Jarchavi, Niamat Hussain, Mohammad Soruri, Mohammad Alibakhshikenari, F. Arpanaei, C. Stefanovic, B. Virdee
{"title":"A High-Gain Quasi-Fractal Antenna with Wide Range Operation for 5G Applications over V-Band Spectrum","authors":"Syed Muhammad Rizvi Jarchavi, Niamat Hussain, Mohammad Soruri, Mohammad Alibakhshikenari, F. Arpanaei, C. Stefanovic, B. Virdee","doi":"10.1109/APWC49427.2022.9899930","DOIUrl":"https://doi.org/10.1109/APWC49427.2022.9899930","url":null,"abstract":"In this paper, a vertical cascade of T-shaped fractal-like antenna is presented for operating at V-band. The fractal-like antenna is shown to provide wideband performance. The radiator consists of interconnected series of elliptical structures of different sizes that were constructed on Roger RT/duroid 5880 substrate. The proposed antenna design was verified using HFSS and CST electromagnetic solvers. The overall dimension of the antenna is 16×18×0.79 mm3. The antenna is shown to provide an average gain exceeding 6.5 dBi across 59 GHz to 68 GHz. The simple geometrical configuration of the antenna and its radiation characteristics makes it a potential candidate for 5G applications operating in V-band.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116370469","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
FDTD Analysis of a Terahertz Waveguide Polarizer 太赫兹波导偏振器的时域有限差分分析
2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2022-09-05 DOI: 10.1109/apwc49427.2022.9899944
J. Shibayama, Hiroki Tanaka, J. Yamauchi, H. Nakano
{"title":"FDTD Analysis of a Terahertz Waveguide Polarizer","authors":"J. Shibayama, Hiroki Tanaka, J. Yamauchi, H. Nakano","doi":"10.1109/apwc49427.2022.9899944","DOIUrl":"https://doi.org/10.1109/apwc49427.2022.9899944","url":null,"abstract":"The use of terahertz (THz) waves is attracting attention for high-speed wireless communications. THz waves have also been utilized as an input wave for surface plasmon resonance (SPR) sensors. We have investigated an SPR waveguide sensor to detect not only a temperature change of water but also a mixture of an organic solvent and water [1] . In addition, we have studied Kretschmann- and Otto-type SPR waveguide sensors in the terahertz regime [2] , showing a high sensitivity compared to the conventional SPR waveguide sensor.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131657586","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
Small Circular Polarized Antenna with Spiral Elements Suppressing Back-lobe Radiation 抑制后瓣辐射的螺旋元件小型圆极化天线
2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2022-09-05 DOI: 10.1109/APWC49427.2022.9899912
Hiroaki Sakamoto, Hidetoshi Makimura, K. Nishimoto, Y. Nishioka, Y. Inasawa, H. Miyashita
{"title":"Small Circular Polarized Antenna with Spiral Elements Suppressing Back-lobe Radiation","authors":"Hiroaki Sakamoto, Hidetoshi Makimura, K. Nishimoto, Y. Nishioka, Y. Inasawa, H. Miyashita","doi":"10.1109/APWC49427.2022.9899912","DOIUrl":"https://doi.org/10.1109/APWC49427.2022.9899912","url":null,"abstract":"In this paper, we propose a method to decrease back-lobe radiation of the small Circular Polarized (CP) antenna. The proposed CP antenna is composed of four antenna elements arranged in a rotational symmetry at 90 degrees on the ground, which are excited with the same amplitude and 90 degrees phase difference. Each antenna element is formed by a spiral antenna branched from the near the middle of an inverted-L antenna. From the result of simulation, backward radiation of the proposed CP antenna can be decreased significantly by adding the spiral elements.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"29 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120942658","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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