{"title":"采用负传输线的双频全向圆极化天线","authors":"Byung‐chul Park, Jeong‐Hae Lee","doi":"10.1109/APMC.2012.6421505","DOIUrl":null,"url":null,"abstract":"In this paper, a dual-band omnidirectional circularly polarized (CP) antenna is presented using 0 and +1 modes of epsilon negative (ENG) transmission line (TL). The antenna is based on the circular mushroom structure with curved branches. The CP antenna is a planar type and simply designed without 90 degree phase shifter and dual feeding structure. The measured average axial ratios at 0 and +1 mode in the azimuthal plane are 2.03 dB and 3.88 dB, respectively. The measured average left-hand (LH) CP gain and right-hand (RH) CP gain are -0.40 dBic at 0 mode and -0.66 dBic at +1 mode, respectively, in the azimuthal plane and these results show a good agreement with simulated data.","PeriodicalId":359125,"journal":{"name":"2012 Asia Pacific Microwave Conference Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Dual-band omnidirectional circularly polarized antenna utilizing epsilon negative transmission line\",\"authors\":\"Byung‐chul Park, Jeong‐Hae Lee\",\"doi\":\"10.1109/APMC.2012.6421505\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, a dual-band omnidirectional circularly polarized (CP) antenna is presented using 0 and +1 modes of epsilon negative (ENG) transmission line (TL). The antenna is based on the circular mushroom structure with curved branches. The CP antenna is a planar type and simply designed without 90 degree phase shifter and dual feeding structure. The measured average axial ratios at 0 and +1 mode in the azimuthal plane are 2.03 dB and 3.88 dB, respectively. The measured average left-hand (LH) CP gain and right-hand (RH) CP gain are -0.40 dBic at 0 mode and -0.66 dBic at +1 mode, respectively, in the azimuthal plane and these results show a good agreement with simulated data.\",\"PeriodicalId\":359125,\"journal\":{\"name\":\"2012 Asia Pacific Microwave Conference Proceedings\",\"volume\":\"1 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.2012.6421505\",\"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.2012.6421505","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Dual-band omnidirectional circularly polarized antenna utilizing epsilon negative transmission line
In this paper, a dual-band omnidirectional circularly polarized (CP) antenna is presented using 0 and +1 modes of epsilon negative (ENG) transmission line (TL). The antenna is based on the circular mushroom structure with curved branches. The CP antenna is a planar type and simply designed without 90 degree phase shifter and dual feeding structure. The measured average axial ratios at 0 and +1 mode in the azimuthal plane are 2.03 dB and 3.88 dB, respectively. The measured average left-hand (LH) CP gain and right-hand (RH) CP gain are -0.40 dBic at 0 mode and -0.66 dBic at +1 mode, respectively, in the azimuthal plane and these results show a good agreement with simulated data.
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