{"title":"差分馈电宽带圆极化贴片天线的设计","authors":"Sheng-Jie Guo, Yan Cheng","doi":"10.1109/APS/URSI47566.2021.9704501","DOIUrl":null,"url":null,"abstract":"In this paper, a broadband differentially fed circularly polarized (CP) patch antenna is designed. Combined with the field distribution of patch antenna, a double-layer differential microstrip feeding structure is proposed to form a circular polarization. The differential CP antenna works around 28.0 GHz, with a −10 dB impedance bandwidth and 3-dB impedance bandwidth of 13.2% and 7.0%, respectively. Within the achieved bandwidth, the radiation pattern has excellent conformality and symmetry. The height of the antenna is only $0.049\\lambda_{0}$ ($\\lambda_{0}$ is the operating wavelength at 29.0 GHz in the free space), achieving a low-profile design.","PeriodicalId":6801,"journal":{"name":"2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)","volume":"25 1","pages":"1203-1204"},"PeriodicalIF":0.0000,"publicationDate":"2021-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Design of A Broadband Circularly Polarized Patch Antenna With Differential Feeding\",\"authors\":\"Sheng-Jie Guo, Yan Cheng\",\"doi\":\"10.1109/APS/URSI47566.2021.9704501\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, a broadband differentially fed circularly polarized (CP) patch antenna is designed. Combined with the field distribution of patch antenna, a double-layer differential microstrip feeding structure is proposed to form a circular polarization. The differential CP antenna works around 28.0 GHz, with a −10 dB impedance bandwidth and 3-dB impedance bandwidth of 13.2% and 7.0%, respectively. Within the achieved bandwidth, the radiation pattern has excellent conformality and symmetry. The height of the antenna is only $0.049\\\\lambda_{0}$ ($\\\\lambda_{0}$ is the operating wavelength at 29.0 GHz in the free space), achieving a low-profile design.\",\"PeriodicalId\":6801,\"journal\":{\"name\":\"2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)\",\"volume\":\"25 1\",\"pages\":\"1203-1204\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-12-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APS/URSI47566.2021.9704501\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APS/URSI47566.2021.9704501","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Design of A Broadband Circularly Polarized Patch Antenna With Differential Feeding
In this paper, a broadband differentially fed circularly polarized (CP) patch antenna is designed. Combined with the field distribution of patch antenna, a double-layer differential microstrip feeding structure is proposed to form a circular polarization. The differential CP antenna works around 28.0 GHz, with a −10 dB impedance bandwidth and 3-dB impedance bandwidth of 13.2% and 7.0%, respectively. Within the achieved bandwidth, the radiation pattern has excellent conformality and symmetry. The height of the antenna is only $0.049\lambda_{0}$ ($\lambda_{0}$ is the operating wavelength at 29.0 GHz in the free space), achieving a low-profile design.
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