{"title":"Metamaterial-inspired wideband low-profile circularly polarized antenna","authors":"Zhao Wu, Haixia Liu, Yan Shi, Long Li","doi":"10.1109/COMPEM.2015.7052550","DOIUrl":null,"url":null,"abstract":"A wideband and low-profile circularly polarized antenna using metasurface for WLAN or satellite communication applications is proposed. The proposed antenna consists of a planar slot coupling antenna with an array of metallic rectangular patches which can be viewed as a metasurface. The metasurface is utilized to adjust axial ratio (AR) for circularly polarized radiation and the slot is angled at 42° with respect to the feed-line. Furthermore, the proposed metamaterial-inspired antenna has a compact structure with a low-profile of 0.07λ0 (λ0 stands for the free space wavelength at 5.25 GHz). Simulated results show that the -10 dB impedance bandwidth for the proposed antenna is 32.5% from 4.25 to 5.9 GHz, and 3-dB AR bandwidth is 18.5% from 4.9 to 5.9 GHz.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"3 1","pages":"45-46"},"PeriodicalIF":0.0000,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE International Conference on Computational Electromagnetics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/COMPEM.2015.7052550","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
A wideband and low-profile circularly polarized antenna using metasurface for WLAN or satellite communication applications is proposed. The proposed antenna consists of a planar slot coupling antenna with an array of metallic rectangular patches which can be viewed as a metasurface. The metasurface is utilized to adjust axial ratio (AR) for circularly polarized radiation and the slot is angled at 42° with respect to the feed-line. Furthermore, the proposed metamaterial-inspired antenna has a compact structure with a low-profile of 0.07λ0 (λ0 stands for the free space wavelength at 5.25 GHz). Simulated results show that the -10 dB impedance bandwidth for the proposed antenna is 32.5% from 4.25 to 5.9 GHz, and 3-dB AR bandwidth is 18.5% from 4.9 to 5.9 GHz.
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