Tran Nguyen Thi Nhat Le, Hoang Dang Cuong, Nguyen Thi Thanh Tam, M. Le, N. Dinh
{"title":"An X-Band Reflectarray Antenna Using Concentric Rings and a Cross","authors":"Tran Nguyen Thi Nhat Le, Hoang Dang Cuong, Nguyen Thi Thanh Tam, M. Le, N. Dinh","doi":"10.1109/NICS54270.2021.9701523","DOIUrl":null,"url":null,"abstract":"In this work, an X-band reflectarray antenna using two concentric rings and a cross is proposed. Three types of unit cells are designed and analyzed to improve the phase sensitivity of the unit cell. A center-feed reflectarray antenna with dimensions of 205.7 mm x 205.7 mm is then designed. It performs an excellent gain of 26 dBi at 10 GHz. It also achieves a good aperture efficiency of 67%, a sidelobe level of -15.6 dB, and a 1-dB bandwidth of 12%.","PeriodicalId":296963,"journal":{"name":"2021 8th NAFOSTED Conference on Information and Computer Science (NICS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 8th NAFOSTED Conference on Information and Computer Science (NICS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NICS54270.2021.9701523","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
In this work, an X-band reflectarray antenna using two concentric rings and a cross is proposed. Three types of unit cells are designed and analyzed to improve the phase sensitivity of the unit cell. A center-feed reflectarray antenna with dimensions of 205.7 mm x 205.7 mm is then designed. It performs an excellent gain of 26 dBi at 10 GHz. It also achieves a good aperture efficiency of 67%, a sidelobe level of -15.6 dB, and a 1-dB bandwidth of 12%.