{"title":"机载相控阵的改进带宽微带天线设计","authors":"S. Sanzgiri, B. Powers, J. Hart","doi":"10.1109/NRC.1989.47630","DOIUrl":null,"url":null,"abstract":"A microstrip radiating element design for a 10% bandwidth, wide-scan-angle, phased-array antenna is described. The radiating element consists of a single probe-fed circular patch on a thick substrate. The element match is optimized using a waveguide array simulator. A finite array of 108 elements was fabricated to evaluate the array's scan-angle performance. Mutual coupling data were used to compute the element reflection coefficient as a function of frequency and scan angle. The scan angle performance was compared with that obtained using the theoretically computed mutual coupling coefficients of a similar array. Both analytical and measured results showed high voltage standing-wave ratio (VSWR) at wide scan angles. The array's performance with a dielectric cover on the top has been evaluated both analytically and experimentally. The results show improvement in the scan angle performance over 10% bandwidth.<<ETX>>","PeriodicalId":167059,"journal":{"name":"Proceedings of the IEEE National Radar Conference","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1989-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Improved bandwidth microstrip antenna design for airborne phased arrays\",\"authors\":\"S. Sanzgiri, B. Powers, J. Hart\",\"doi\":\"10.1109/NRC.1989.47630\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A microstrip radiating element design for a 10% bandwidth, wide-scan-angle, phased-array antenna is described. The radiating element consists of a single probe-fed circular patch on a thick substrate. The element match is optimized using a waveguide array simulator. A finite array of 108 elements was fabricated to evaluate the array's scan-angle performance. Mutual coupling data were used to compute the element reflection coefficient as a function of frequency and scan angle. The scan angle performance was compared with that obtained using the theoretically computed mutual coupling coefficients of a similar array. Both analytical and measured results showed high voltage standing-wave ratio (VSWR) at wide scan angles. The array's performance with a dielectric cover on the top has been evaluated both analytically and experimentally. The results show improvement in the scan angle performance over 10% bandwidth.<<ETX>>\",\"PeriodicalId\":167059,\"journal\":{\"name\":\"Proceedings of the IEEE National Radar Conference\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1989-03-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the IEEE National Radar Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NRC.1989.47630\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the IEEE National Radar Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NRC.1989.47630","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Improved bandwidth microstrip antenna design for airborne phased arrays
A microstrip radiating element design for a 10% bandwidth, wide-scan-angle, phased-array antenna is described. The radiating element consists of a single probe-fed circular patch on a thick substrate. The element match is optimized using a waveguide array simulator. A finite array of 108 elements was fabricated to evaluate the array's scan-angle performance. Mutual coupling data were used to compute the element reflection coefficient as a function of frequency and scan angle. The scan angle performance was compared with that obtained using the theoretically computed mutual coupling coefficients of a similar array. Both analytical and measured results showed high voltage standing-wave ratio (VSWR) at wide scan angles. The array's performance with a dielectric cover on the top has been evaluated both analytically and experimentally. The results show improvement in the scan angle performance over 10% bandwidth.<>
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