{"title":"Spiral Antenna with a Circular HIS Reflector Sandwiched by Ring-shaped Absorbers","authors":"M. Tanabe","doi":"10.1109/APWC49427.2022.9899965","DOIUrl":null,"url":null,"abstract":"A spiral antenna with a circular high-impedance surface (HIS) reflector (CirHISR) sandwiched by ring-shaped absorbers (R-ABSs) is investigated. To improve the variation of the gain in a specific frequency region for a spiral antenna with a CirHISR, we propose a new structure where the CirHISR is sandwiched by two R-ABSs. The antenna height is 0.096 wavelength at 2.5 GHz (the lowest operating frequency). The antenna characteristics are analyzed using a commercially available method of moment software. It is found that the CirHISR sandwiched by two R-ABSs contributes to the enhancement of the gain variation (more than 5.0 dBi across a frequency range of 2.5 GHz to 9 GHz), compared to the gain of the CirHISR without R-ABSs. Other antenna characteristics, including input impedance and axial ratio, are also analyzed and presented here.","PeriodicalId":422168,"journal":{"name":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APWC49427.2022.9899965","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
A spiral antenna with a circular high-impedance surface (HIS) reflector (CirHISR) sandwiched by ring-shaped absorbers (R-ABSs) is investigated. To improve the variation of the gain in a specific frequency region for a spiral antenna with a CirHISR, we propose a new structure where the CirHISR is sandwiched by two R-ABSs. The antenna height is 0.096 wavelength at 2.5 GHz (the lowest operating frequency). The antenna characteristics are analyzed using a commercially available method of moment software. It is found that the CirHISR sandwiched by two R-ABSs contributes to the enhancement of the gain variation (more than 5.0 dBi across a frequency range of 2.5 GHz to 9 GHz), compared to the gain of the CirHISR without R-ABSs. Other antenna characteristics, including input impedance and axial ratio, are also analyzed and presented here.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
