{"title":"Dual Circularly Polarized All-Metal Orbital Angular Momentum Beam Reflectarray Antenna","authors":"Z. Ahmed, Awab Muhammad, Shafaq Kausar, M. Ihsan","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886105","DOIUrl":null,"url":null,"abstract":"This paper presents an all-metal, dual-circularly polarized OAM beam reflectarray antenna operating at 30 GHz. A 15λ0×15λ0 OAM reflectarray having F/D ratio of 0.6 is designed to produce Bessel beam with mode number, l = 1, and cone angle of 15°. The reflectarray consists of a low-loss square-shaped metallic unit cell independent of the polarization of the incident waves. The dual-circular polarization is achieved using a pyramidal feed horn antenna with a square septum polarizer. The feed offers polarization diversity by switching between the two input ports of the septum polarizer.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"73 3 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886105","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 presents an all-metal, dual-circularly polarized OAM beam reflectarray antenna operating at 30 GHz. A 15λ0×15λ0 OAM reflectarray having F/D ratio of 0.6 is designed to produce Bessel beam with mode number, l = 1, and cone angle of 15°. The reflectarray consists of a low-loss square-shaped metallic unit cell independent of the polarization of the incident waves. The dual-circular polarization is achieved using a pyramidal feed horn antenna with a square septum polarizer. The feed offers polarization diversity by switching between the two input ports of the septum polarizer.