{"title":"Polarization tunable dielectric resonator antenna with quasi-lumped quadrature coupler","authors":"Meng Zhang, Bin Li, Yong Liu, X. Lv","doi":"10.1109/COMPEM.2015.7052662","DOIUrl":null,"url":null,"abstract":"A full polarization reconfigurable dielectric resonator antenna (DRA) is proposed in this paper. Fed with a quasi-lumped quadrature coupler (QLQC), the DRA can achieve vertical linear, horizontal linear, left-handed circular and right-handed circular polarization simply by changing the mode and input port of the hybrid. A reconfigurable DRA operating at 3.5 GHz has been investigated. Due to the wideband characteristic of DRA, the impedance bandwidth (S11 <; -10dB) of linear polarization (LP) is 12.6% with reasonable gain. The bandwidth of circular polarization is 15.1% with S11 lower than -10 dB and gain in the boresight direction over 5dBi.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"28 1","pages":"361-362"},"PeriodicalIF":0.0000,"publicationDate":"2015-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE International Conference on Computational Electromagnetics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/COMPEM.2015.7052662","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A full polarization reconfigurable dielectric resonator antenna (DRA) is proposed in this paper. Fed with a quasi-lumped quadrature coupler (QLQC), the DRA can achieve vertical linear, horizontal linear, left-handed circular and right-handed circular polarization simply by changing the mode and input port of the hybrid. A reconfigurable DRA operating at 3.5 GHz has been investigated. Due to the wideband characteristic of DRA, the impedance bandwidth (S11 <; -10dB) of linear polarization (LP) is 12.6% with reasonable gain. The bandwidth of circular polarization is 15.1% with S11 lower than -10 dB and gain in the boresight direction over 5dBi.
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