{"title":"Wideband Dielectric Resonator Antenna with Polarization Reconfigurability","authors":"Xing-Yu Dong, Wenwen Yang, Jian‐Xin Chen","doi":"10.1109/COMPEM.2018.8496733","DOIUrl":null,"url":null,"abstract":"In this paper, a novel wideband polarization reconfigurable dielectric resonator antenna (DRA) is proposed. Since only five p-i-n diodes are needed to implement the reconfigurablility and the reconfigurable circuit is isolated from the DRA by the ground plane, the antenna shows a simple structure. By combing the two resonant frequencies of DR mode and DR-loaded cross-slot mode, the antenna can achieve a wide operating bandwidth. Simulated results show that the antenna can achieve a 3-dB axial ratio (AR) bandwidth of 16% for circular polarization (CP) states, an impedance bandwidth of 19% for linear polarization (LP) state with a cross-polarization level of better than 25 dB, and a peak gain of 7 dBi for all states.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/COMPEM.2018.8496733","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
In this paper, a novel wideband polarization reconfigurable dielectric resonator antenna (DRA) is proposed. Since only five p-i-n diodes are needed to implement the reconfigurablility and the reconfigurable circuit is isolated from the DRA by the ground plane, the antenna shows a simple structure. By combing the two resonant frequencies of DR mode and DR-loaded cross-slot mode, the antenna can achieve a wide operating bandwidth. Simulated results show that the antenna can achieve a 3-dB axial ratio (AR) bandwidth of 16% for circular polarization (CP) states, an impedance bandwidth of 19% for linear polarization (LP) state with a cross-polarization level of better than 25 dB, and a peak gain of 7 dBi for all states.
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