{"title":"Decade-bandwidth low cross-polarization UWB array","authors":"J. Logan, M. Vouvakis","doi":"10.1109/APS.2016.7695927","DOIUrl":null,"url":null,"abstract":"The proposed Sliced Notch Antenna (SNA) array fixes the longstanding problem of high cross-polarization radiation in Vivaldi arrays while maintaining their excellent wideband wide-scan impedance performance with a simple reconfiguration of the Vivaldi fins. The enabling technical innovation is the introduction of discontinuities at the upper region of the flared fins that control the ratio of vertical-to-horizontal current density, without introducing sizable reflections. Measurements and simulations suggest a 10:1 (1.2-12 GHz) SNA array operation with good scanning VSWR out to 45°, and about 15 dB polarization purity improvement over a well-designed Vivaldi counterpart.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"2 1","pages":"437-438"},"PeriodicalIF":0.0000,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APS.2016.7695927","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
The proposed Sliced Notch Antenna (SNA) array fixes the longstanding problem of high cross-polarization radiation in Vivaldi arrays while maintaining their excellent wideband wide-scan impedance performance with a simple reconfiguration of the Vivaldi fins. The enabling technical innovation is the introduction of discontinuities at the upper region of the flared fins that control the ratio of vertical-to-horizontal current density, without introducing sizable reflections. Measurements and simulations suggest a 10:1 (1.2-12 GHz) SNA array operation with good scanning VSWR out to 45°, and about 15 dB polarization purity improvement over a well-designed Vivaldi counterpart.