{"title":"Passive MESFET Limiters For Wireless Applications","authors":"C.E. Buchinsky, A. Katz","doi":"10.1109/SARNOF.1995.636702","DOIUrl":null,"url":null,"abstract":"The ability to sharply limit power level while maintaining a negligible change in phase is important in many wireless communications systems. This paper investigates the use of a passive MESFET device as a power limiter for the UHF and lower microwave frequency range. The S-parameters of a commercial grade GaAs FET were measured as a function of power level and used to develop a model. From the model a limiter circuit was designed, fabricated and tested. The resulting limiter employed two FETs in cascade, and produced a near ideal transfer characteristic over more than a two decade power range with less than a 15 degree change in phase.","PeriodicalId":118150,"journal":{"name":"IEEE Princeton Section Sarnoff Symposium","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1995-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Princeton Section Sarnoff Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SARNOF.1995.636702","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
The ability to sharply limit power level while maintaining a negligible change in phase is important in many wireless communications systems. This paper investigates the use of a passive MESFET device as a power limiter for the UHF and lower microwave frequency range. The S-parameters of a commercial grade GaAs FET were measured as a function of power level and used to develop a model. From the model a limiter circuit was designed, fabricated and tested. The resulting limiter employed two FETs in cascade, and produced a near ideal transfer characteristic over more than a two decade power range with less than a 15 degree change in phase.
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