{"title":"Improvements of Transfer Efficiency in Capacitive Wireless Power Transfer Under Seawater","authors":"Kousuke Murai, Masaya Tamura","doi":"10.1109/APMC46564.2019.9038820","DOIUrl":null,"url":null,"abstract":"In this paper, the efficiency improvement in an electric coupler using an electric double layer was presented. High efficiency of a capacitive coupler can be achieved under seawater because the Q-factor improves when using an electric double layer. First, to reveal area characteristics of dielectric constant and Q-factor by measuring of seawater for an optimized design, we built an approximate expression for electromagnetic field analysis. By adjusting the electrode area and distance of an adjacent electrode of capacitive coupler using the approximated Q-factor to optimize the structure, a transmission efficiency of 92.0% in simulation was achieved. Finally, maximum power transfer efficiency of 85.0% in measurement was achieved.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APMC46564.2019.9038820","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
In this paper, the efficiency improvement in an electric coupler using an electric double layer was presented. High efficiency of a capacitive coupler can be achieved under seawater because the Q-factor improves when using an electric double layer. First, to reveal area characteristics of dielectric constant and Q-factor by measuring of seawater for an optimized design, we built an approximate expression for electromagnetic field analysis. By adjusting the electrode area and distance of an adjacent electrode of capacitive coupler using the approximated Q-factor to optimize the structure, a transmission efficiency of 92.0% in simulation was achieved. Finally, maximum power transfer efficiency of 85.0% in measurement was achieved.