{"title":"宽带圆极化微带平行带馈螺旋天线","authors":"Wen‐Hua Tu","doi":"10.1109/APSAR.2015.7306150","DOIUrl":null,"url":null,"abstract":"A microstrip-parallel strip-fed circularly polarized spiral antenna is investigated. A wideband microstrip to parallel strip transition is designed in order to feed the spiral antenna. The transition shows a back-to-back return loss of better than 10 dB from 0.045 to 20 GHz except for a ripple at 2 GHz, while the back-to-back insertion loss is less than 2.4 dB. The final antenna shows a return loss of better than 10 dB from 2.5 to 13.5 GHz. The antenna axial ratio is better than 2.2 dB from 5 to 12 GHz.","PeriodicalId":350698,"journal":{"name":"2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Wideband circularly polarized microstrip-parallel strip-fed spiral antenna\",\"authors\":\"Wen‐Hua Tu\",\"doi\":\"10.1109/APSAR.2015.7306150\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A microstrip-parallel strip-fed circularly polarized spiral antenna is investigated. A wideband microstrip to parallel strip transition is designed in order to feed the spiral antenna. The transition shows a back-to-back return loss of better than 10 dB from 0.045 to 20 GHz except for a ripple at 2 GHz, while the back-to-back insertion loss is less than 2.4 dB. The final antenna shows a return loss of better than 10 dB from 2.5 to 13.5 GHz. The antenna axial ratio is better than 2.2 dB from 5 to 12 GHz.\",\"PeriodicalId\":350698,\"journal\":{\"name\":\"2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)\",\"volume\":\"69 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-10-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APSAR.2015.7306150\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APSAR.2015.7306150","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A microstrip-parallel strip-fed circularly polarized spiral antenna is investigated. A wideband microstrip to parallel strip transition is designed in order to feed the spiral antenna. The transition shows a back-to-back return loss of better than 10 dB from 0.045 to 20 GHz except for a ripple at 2 GHz, while the back-to-back insertion loss is less than 2.4 dB. The final antenna shows a return loss of better than 10 dB from 2.5 to 13.5 GHz. The antenna axial ratio is better than 2.2 dB from 5 to 12 GHz.
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