{"title":"Wideband Star-shaped mmWave Planar Array Antenna with Liquid Crystal","authors":"Divya Krishnan, Nasimuddin, A. Alphones","doi":"10.1109/APS/URSI47566.2021.9703775","DOIUrl":null,"url":null,"abstract":"This paper introduces a wideband star-shaped planar antenna with a liquid crystal (LC) material at Ka-band. The antenna array consists of the LC cavity and planar antenna elements with a microstrip feedline. Planar antenna array is designed with eight star-shaped patches. To check the LC dielectric constant at Ka-band, the designed antenna is fabricated and measured result of reflection coefficient(S11) ≤ −10 dB shows across the wideband (27 GHz – 40 GHz) without DC biasing with bean scanning from −62° to +5° and gain ≥ 8.15 dBi. The frequency range can be tuned with applied biasing voltage on the LC cavity.","PeriodicalId":6801,"journal":{"name":"2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)","volume":"31 31","pages":"1281-1282"},"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/URSI47566.2021.9703775","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
This paper introduces a wideband star-shaped planar antenna with a liquid crystal (LC) material at Ka-band. The antenna array consists of the LC cavity and planar antenna elements with a microstrip feedline. Planar antenna array is designed with eight star-shaped patches. To check the LC dielectric constant at Ka-band, the designed antenna is fabricated and measured result of reflection coefficient(S11) ≤ −10 dB shows across the wideband (27 GHz – 40 GHz) without DC biasing with bean scanning from −62° to +5° and gain ≥ 8.15 dBi. The frequency range can be tuned with applied biasing voltage on the LC cavity.