Haipeng Li, Guang-Ming Wang, Xiangjun Gao, Jian-gang Liang, H. Hou
{"title":"An X / Ku - Band Focusing Anisotropic Metasurface for Low Cross - Polarization Lens Antenna Application","authors":"Haipeng Li, Guang-Ming Wang, Xiangjun Gao, Jian-gang Liang, H. Hou","doi":"10.2528/PIER17032807","DOIUrl":null,"url":null,"abstract":"An X/Ku-band flat lens antenna based on a dual-frequency anisotropic metasurface is proposed in this paper. The function of the anisotropic metasurface is to focus the incident plane waves around 10 GHz and 14 GHz on different spots. Then we place a Vivaldi antenna with its phase centers at 10 GHz and 14 GHz well matching the focal spot of the metasurface at each frequency to build a flat lens antenna. The lens antenna has a peak gain of 18.5 dB and cross-polarization levels of lower than −20 dB at 10 GHz with −1 dB gain bandwidth of 9.8–10.4 GHz, while it has a peak gain of 18.8 dB and cross-polarization levels of lower than −30 dB at 14 GHz with the bandwidth of 13.8–14.2 GHz. Besides single working band, the antenna can simultaneously operate at 10 GHz and 14 GHz with gains of 16.2 dB and 16.5 dB, respectively. Measured results have a good agreement with the simulated ones.","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"32 1","pages":"79-91"},"PeriodicalIF":6.7000,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Electromagnetics Research-Pier","FirstCategoryId":"94","ListUrlMain":"https://doi.org/10.2528/PIER17032807","RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Physics and Astronomy","Score":null,"Total":0}
引用次数: 7
Abstract
An X/Ku-band flat lens antenna based on a dual-frequency anisotropic metasurface is proposed in this paper. The function of the anisotropic metasurface is to focus the incident plane waves around 10 GHz and 14 GHz on different spots. Then we place a Vivaldi antenna with its phase centers at 10 GHz and 14 GHz well matching the focal spot of the metasurface at each frequency to build a flat lens antenna. The lens antenna has a peak gain of 18.5 dB and cross-polarization levels of lower than −20 dB at 10 GHz with −1 dB gain bandwidth of 9.8–10.4 GHz, while it has a peak gain of 18.8 dB and cross-polarization levels of lower than −30 dB at 14 GHz with the bandwidth of 13.8–14.2 GHz. Besides single working band, the antenna can simultaneously operate at 10 GHz and 14 GHz with gains of 16.2 dB and 16.5 dB, respectively. Measured results have a good agreement with the simulated ones.
期刊介绍：
Progress In Electromagnetics Research (PIER) publishes peer-reviewed original and comprehensive articles on all aspects of electromagnetic theory and applications. This is an open access, on-line journal PIER (E-ISSN 1559-8985). It has been first published as a monograph series on Electromagnetic Waves (ISSN 1070-4698) in 1989. It is freely available to all readers via the Internet.
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