{"title":"用于高灵敏度射电天文接收机的同轴套管短逆火天线","authors":"Chi-Chang Lin, Yuh-Jing Hwang, S. Srikanth","doi":"10.1109/APMC.2012.6421915","DOIUrl":null,"url":null,"abstract":"A broadband 800-MHz short backfire antenna (SBA) integrated with a cryogenic vacuum chamber is designed for astronomical applications. The cryostat offers the low-temperature condition to front-end components because of low-noise demands for the astronomy observations. In order to overcome the impacts from the cryostat, the SBA adopts a pair of concentric sleeves to replace the conventional double-discs design. It features a dual-mode response and enhances the bandwidth. The simulated results show the VSWR less than 2.2 and the gain of 11-15 dBi over the band of 700-945 MHz.","PeriodicalId":359125,"journal":{"name":"2012 Asia Pacific Microwave Conference Proceedings","volume":"111 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Short backfire antenna with concentric sleeves for highly sensitive radio astronomical receivers\",\"authors\":\"Chi-Chang Lin, Yuh-Jing Hwang, S. Srikanth\",\"doi\":\"10.1109/APMC.2012.6421915\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A broadband 800-MHz short backfire antenna (SBA) integrated with a cryogenic vacuum chamber is designed for astronomical applications. The cryostat offers the low-temperature condition to front-end components because of low-noise demands for the astronomy observations. In order to overcome the impacts from the cryostat, the SBA adopts a pair of concentric sleeves to replace the conventional double-discs design. It features a dual-mode response and enhances the bandwidth. The simulated results show the VSWR less than 2.2 and the gain of 11-15 dBi over the band of 700-945 MHz.\",\"PeriodicalId\":359125,\"journal\":{\"name\":\"2012 Asia Pacific Microwave Conference Proceedings\",\"volume\":\"111 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 Asia Pacific Microwave Conference Proceedings\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APMC.2012.6421915\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 Asia Pacific Microwave Conference Proceedings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APMC.2012.6421915","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Short backfire antenna with concentric sleeves for highly sensitive radio astronomical receivers
A broadband 800-MHz short backfire antenna (SBA) integrated with a cryogenic vacuum chamber is designed for astronomical applications. The cryostat offers the low-temperature condition to front-end components because of low-noise demands for the astronomy observations. In order to overcome the impacts from the cryostat, the SBA adopts a pair of concentric sleeves to replace the conventional double-discs design. It features a dual-mode response and enhances the bandwidth. The simulated results show the VSWR less than 2.2 and the gain of 11-15 dBi over the band of 700-945 MHz.
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