{"title":"Constant Linearity Variable Gain Traveling Wave Amplifier MMIC for 1 to 26.5 GHz Applications","authors":"K. Fujii, H. Morkner","doi":"10.1109/EMICC.2006.282698","DOIUrl":null,"url":null,"abstract":"This paper describes the design and test results of a constant linearity variable gain traveling wave amplifier (VGTWA) suitable for 1 to 26.5GHz applications. The constant linearity VGTWA consists of variable feedback cascode stages, input artificial transmission line, output artificial transmission line, and a drain DC biasing network. The VGTWA was fabricated by the Avago's 0.25mum enhancement mode PHEMT process thus requires only a positive supply for bias and control. The constant linearity VGTWA exhibits 9 +/- 2 dB of maximum small signal gain between 1 and 26.5GHz frequencies with 15dB gain control. The TGTWA exhibits 14dBm minimum output 3rd order intercept point over the gain controlling range. The VGTWA also exhibits constant input/output return losses over the gain controlling conditions","PeriodicalId":269652,"journal":{"name":"2006 European Microwave Integrated Circuits Conference","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 European Microwave Integrated Circuits Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EMICC.2006.282698","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
This paper describes the design and test results of a constant linearity variable gain traveling wave amplifier (VGTWA) suitable for 1 to 26.5GHz applications. The constant linearity VGTWA consists of variable feedback cascode stages, input artificial transmission line, output artificial transmission line, and a drain DC biasing network. The VGTWA was fabricated by the Avago's 0.25mum enhancement mode PHEMT process thus requires only a positive supply for bias and control. The constant linearity VGTWA exhibits 9 +/- 2 dB of maximum small signal gain between 1 and 26.5GHz frequencies with 15dB gain control. The TGTWA exhibits 14dBm minimum output 3rd order intercept point over the gain controlling range. The VGTWA also exhibits constant input/output return losses over the gain controlling conditions
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