{"title":"Wideband Circularly Polarized Antenna With All-Textile Metasurface for Off-Body Communications","authors":"Hongcai Yang, Xiongying Liu, Adisaputra Adisaputra","doi":"10.1109/APCAP50217.2020.9246017","DOIUrl":null,"url":null,"abstract":"A novel wideband circularly polarized (CP) antenna with all-textile Metasurface (MS) is investigated for wearable devices. The proposed antenna is composed of a microstrip patch antenna (MPA), on which a tilt slot is etched for realizing CP radiation. A piece of MS is placed right above the MPA, achieving broadband performance. Specifically, the bandwidth broadening mechanism is revealed using the characteristic mode analysis. The simulated −10-dB bandwidth is 34.7% (4.65-6.56 GHz) and the 3-dB axial ratio is 22.4% (4.75-5.98 GHz) with a peak gain of 9.0 dBi as the antenna is attached to a multilayer human tissue model. In addition, the front-to-back ratio of the antenna is greater than 25 dB, which is suitable for off-body communications.","PeriodicalId":146561,"journal":{"name":"2020 9th Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2020-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 9th Asia-Pacific Conference on Antennas and Propagation (APCAP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APCAP50217.2020.9246017","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A novel wideband circularly polarized (CP) antenna with all-textile Metasurface (MS) is investigated for wearable devices. The proposed antenna is composed of a microstrip patch antenna (MPA), on which a tilt slot is etched for realizing CP radiation. A piece of MS is placed right above the MPA, achieving broadband performance. Specifically, the bandwidth broadening mechanism is revealed using the characteristic mode analysis. The simulated −10-dB bandwidth is 34.7% (4.65-6.56 GHz) and the 3-dB axial ratio is 22.4% (4.75-5.98 GHz) with a peak gain of 9.0 dBi as the antenna is attached to a multilayer human tissue model. In addition, the front-to-back ratio of the antenna is greater than 25 dB, which is suitable for off-body communications.
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