{"title":"Antenna applications of non-Foster elements","authors":"H. Mirzaei, G. Eleftheriades","doi":"10.1109/IWAT.2012.6178667","DOIUrl":null,"url":null,"abstract":"Three different antenna applications of non-Foster elements in resonant antennas, leaky-wave antennas and series-fed antenna arrays, are investigated. A resonant antenna is presented in which an internal tuning element is replaced with a combination of non-Foster elements in order to make the antenna wideband. Moreover, a non-dispersive fast-wave transmission line, which can be obtained by loading a host transmission line with non-Foster reactive elements, is introduced. Subsequently, the applications of such an artificial transmission line in making squint-free leaky-wave antennas is presented. Finally, the requirements of true time-delay lines for applications in series-fed antenna arrays is discussed and it is shown that the non-Foster fast-wave transmission line can meet these requirements.","PeriodicalId":6341,"journal":{"name":"2012 IEEE International Workshop on Antenna Technology (iWAT)","volume":"50 1","pages":"281-284"},"PeriodicalIF":0.0000,"publicationDate":"2012-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE International Workshop on Antenna Technology (iWAT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWAT.2012.6178667","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
Three different antenna applications of non-Foster elements in resonant antennas, leaky-wave antennas and series-fed antenna arrays, are investigated. A resonant antenna is presented in which an internal tuning element is replaced with a combination of non-Foster elements in order to make the antenna wideband. Moreover, a non-dispersive fast-wave transmission line, which can be obtained by loading a host transmission line with non-Foster reactive elements, is introduced. Subsequently, the applications of such an artificial transmission line in making squint-free leaky-wave antennas is presented. Finally, the requirements of true time-delay lines for applications in series-fed antenna arrays is discussed and it is shown that the non-Foster fast-wave transmission line can meet these requirements.
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