{"title":"Single-Fed Dual-Band Circularly Polarized Patch Antenna With Wide 3-dB Axial Ratio Beamwidth for CNSS Applications","authors":"Hongcai Yang, Yi Fan, Xiongying Liu, M. Tentzeris","doi":"10.1109/IEEE-IWS.2019.8803896","DOIUrl":null,"url":null,"abstract":"This paper presents a dual-band circularly polarized (CP) antenna with wide 3-dB axial ratio (AR) beamwidth for compass navigation satellite system (CNSS) applications. The antenna is designed to be a double-layer structure and fed through a single coaxial probe. Two patches stacked together with truncated corners and symmetry L-shaped stubs are used to achieve two operating frequency bands, i.e., B1 (1.561 GHz) and B2 (1.207 GHz), for CNSS. In particular, a circular ground plane with four curved slots is adopted to achieve a symmetrical radiation pattern and a wide 3-dB AR beamwidth. At 1.561 GHz, the peak gain of the proposed antenna is 6.4 dBi, and the 3-dB AR beamwidths of 214°and 200°in the xz- and yz-planes are obtained, respectively. At 1.207 GHz, the proposed antenna has a maximum gain of 6.0 dBi, and the 3-dB AR beamwidths of 221°and 202°in the xz- and yz-planes.","PeriodicalId":306297,"journal":{"name":"2019 IEEE MTT-S International Wireless Symposium (IWS)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE MTT-S International Wireless Symposium (IWS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IEEE-IWS.2019.8803896","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
This paper presents a dual-band circularly polarized (CP) antenna with wide 3-dB axial ratio (AR) beamwidth for compass navigation satellite system (CNSS) applications. The antenna is designed to be a double-layer structure and fed through a single coaxial probe. Two patches stacked together with truncated corners and symmetry L-shaped stubs are used to achieve two operating frequency bands, i.e., B1 (1.561 GHz) and B2 (1.207 GHz), for CNSS. In particular, a circular ground plane with four curved slots is adopted to achieve a symmetrical radiation pattern and a wide 3-dB AR beamwidth. At 1.561 GHz, the peak gain of the proposed antenna is 6.4 dBi, and the 3-dB AR beamwidths of 214°and 200°in the xz- and yz-planes are obtained, respectively. At 1.207 GHz, the proposed antenna has a maximum gain of 6.0 dBi, and the 3-dB AR beamwidths of 221°and 202°in the xz- and yz-planes.
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