{"title":"宽轴比波束宽圆偏振的60 ghz锥形椭圆腔背接的孔径耦合交叉偶极子","authors":"X. Bai, S. Qu","doi":"10.1109/CSQRWC.2013.6657384","DOIUrl":null,"url":null,"abstract":"A cavity-backed crossed dipoles for circularly polarized (CP) radiation is presented. To improve the 3-dB axial ratio (AR) beamwidth and the broadside gain, a tapered elliptical cavity is introduced. The proposed antenna uses substrate integrated waveguide (SIW) as its feeder. The crossed dipoles is coupled-fed by a transverse slot on the top metallic surface of the SIW. Simulations show that the antenna can present a bandwidth from 56.1 to 62.5 GHz for a reflection coefficient S11 ≤ -10 dB as well as for an axial ratio (AR) =≤3 dB, and a high broadside gain of around 10.4 dBi on average is achieved. Meanwhile, the wide 3-dB AR beamwidth on all azimuth planes can be achieved. This design yields good directional radiation patterns and low fabrication cost.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"60-GHz aperture-coupled crossed dipoles backed by tapered elliptical cavity for circular polarization with wide axial-ratio beamwidth\",\"authors\":\"X. Bai, S. Qu\",\"doi\":\"10.1109/CSQRWC.2013.6657384\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A cavity-backed crossed dipoles for circularly polarized (CP) radiation is presented. To improve the 3-dB axial ratio (AR) beamwidth and the broadside gain, a tapered elliptical cavity is introduced. The proposed antenna uses substrate integrated waveguide (SIW) as its feeder. The crossed dipoles is coupled-fed by a transverse slot on the top metallic surface of the SIW. Simulations show that the antenna can present a bandwidth from 56.1 to 62.5 GHz for a reflection coefficient S11 ≤ -10 dB as well as for an axial ratio (AR) =≤3 dB, and a high broadside gain of around 10.4 dBi on average is achieved. Meanwhile, the wide 3-dB AR beamwidth on all azimuth planes can be achieved. This design yields good directional radiation patterns and low fabrication cost.\",\"PeriodicalId\":355180,\"journal\":{\"name\":\"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference\",\"volume\":\"40 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-07-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CSQRWC.2013.6657384\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CSQRWC.2013.6657384","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
60-GHz aperture-coupled crossed dipoles backed by tapered elliptical cavity for circular polarization with wide axial-ratio beamwidth
A cavity-backed crossed dipoles for circularly polarized (CP) radiation is presented. To improve the 3-dB axial ratio (AR) beamwidth and the broadside gain, a tapered elliptical cavity is introduced. The proposed antenna uses substrate integrated waveguide (SIW) as its feeder. The crossed dipoles is coupled-fed by a transverse slot on the top metallic surface of the SIW. Simulations show that the antenna can present a bandwidth from 56.1 to 62.5 GHz for a reflection coefficient S11 ≤ -10 dB as well as for an axial ratio (AR) =≤3 dB, and a high broadside gain of around 10.4 dBi on average is achieved. Meanwhile, the wide 3-dB AR beamwidth on all azimuth planes can be achieved. This design yields good directional radiation patterns and low fabrication cost.