{"title":"Slot line between oppositely-magnetized ferrite layers for broadband, high-nonreciprocity phase shifters","authors":"C. J. Koza, E. El-Sharawy","doi":"10.1109/MWSYM.1991.147167","DOIUrl":null,"url":null,"abstract":"A novel phase shifting structure that exhibits both broadband operation and high nonreciprocity is presented. This structure comprises a slot line between two oppositely magnetized ferrite substrates. A full-wave, spectral-domain analysis is used, where Green's functions are formulated using a transmission matrix approach. By eliminating the use of relatively thick high-dielectric substrates, a bandwidth of 3:1 and a differential phase of 50 degrees /cm are feasible. The addition of thin layers of high-dielectric material is shown to increase the differential phase to over 100 degrees /cm without significantly reducing the bandwidth.<<ETX>>","PeriodicalId":263441,"journal":{"name":"1991 IEEE MTT-S International Microwave Symposium Digest","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1991-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1991 IEEE MTT-S International Microwave Symposium Digest","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.1991.147167","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
A novel phase shifting structure that exhibits both broadband operation and high nonreciprocity is presented. This structure comprises a slot line between two oppositely magnetized ferrite substrates. A full-wave, spectral-domain analysis is used, where Green's functions are formulated using a transmission matrix approach. By eliminating the use of relatively thick high-dielectric substrates, a bandwidth of 3:1 and a differential phase of 50 degrees /cm are feasible. The addition of thin layers of high-dielectric material is shown to increase the differential phase to over 100 degrees /cm without significantly reducing the bandwidth.<>
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