{"title":"The figure of merit of an open-rising microstrip antenna","authors":"M. Sultan","doi":"10.1109/APS.1989.134717","DOIUrl":null,"url":null,"abstract":"A closed-form expression for the total stored energy of an open-ring structure is derived and used to determine the corresponding figure of merit in terms of the antenna gain-bandwidth product. The gain is proportional to the input impedance at resonance R/sub 0/ and the bandwidth is inversely proportional to the total quality factor Q/sub T/ of the antenna. The results for the antenna R/sub 0//Q/sub T/ figure are shown for the TM/sub 11/ mode and the TM/sub 12/ modes. They indicate that different structures can have the same R/sub 0//Q/sub T/ figure.<<ETX>>","PeriodicalId":11330,"journal":{"name":"Digest on Antennas and Propagation Society International Symposium","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1989-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Digest on Antennas and Propagation Society International Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APS.1989.134717","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 closed-form expression for the total stored energy of an open-ring structure is derived and used to determine the corresponding figure of merit in terms of the antenna gain-bandwidth product. The gain is proportional to the input impedance at resonance R/sub 0/ and the bandwidth is inversely proportional to the total quality factor Q/sub T/ of the antenna. The results for the antenna R/sub 0//Q/sub T/ figure are shown for the TM/sub 11/ mode and the TM/sub 12/ modes. They indicate that different structures can have the same R/sub 0//Q/sub T/ figure.<>
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