{"title":"Design of a Broadband Dielectric Resonator Antenna with Filtering Response","authors":"Wenjiao Xu, Jianpeng Wang, Xiaodong Fu","doi":"10.1109/csrswtc50769.2020.9372679","DOIUrl":null,"url":null,"abstract":"A filtering dielectric resonator antenna (FDRA) with wide bandwidth is investigated in this paper. The TE210 mode of the substrate integrated waveguide (SIW) cavity is utilized to feed stacked rectangular dielectric resonators (DRs) for improvement of the gain selectivity. Then, three resonant modes as TE110 mode, TE210 mode of SIW and TE111 mode of DRs are excited. By elaborately arranging the feeding structure and the stacked DRs with different relative permittivity, we can broaden the impedance bandwidth. Three radiation nulls near the lower and higher edges of the gain passband are introduced to improve the gain selectivity. Simulated results of the reflection coefficient, antenna gain and radiation pattern are provided with impedance bandwidth of 19% and average gain of 5.64 dBi within passband.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"278 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/csrswtc50769.2020.9372679","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 filtering dielectric resonator antenna (FDRA) with wide bandwidth is investigated in this paper. The TE210 mode of the substrate integrated waveguide (SIW) cavity is utilized to feed stacked rectangular dielectric resonators (DRs) for improvement of the gain selectivity. Then, three resonant modes as TE110 mode, TE210 mode of SIW and TE111 mode of DRs are excited. By elaborately arranging the feeding structure and the stacked DRs with different relative permittivity, we can broaden the impedance bandwidth. Three radiation nulls near the lower and higher edges of the gain passband are introduced to improve the gain selectivity. Simulated results of the reflection coefficient, antenna gain and radiation pattern are provided with impedance bandwidth of 19% and average gain of 5.64 dBi within passband.
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