{"title":"Performance and Circuit Charasteristics of CATTS","authors":"J. Eshbach, S. Yu, W. Cady, N. T. Lavoo","doi":"10.1109/EUMA.1978.332519","DOIUrl":null,"url":null,"abstract":"New results in the 3-5 GHz region, obtained on CATT cells designed for improved efficiency as microwave power amplifiers, are reported. At 3.0 GHz collector efficiencies of 39% have been measured with 12 dB gain and 1.4 watts peak output power per cell. At 5.0 GHz the results are: 2l% efficiency, 6 dB gain and 0.9 watts output. The improved performance is due to reduced collector-base capacitance and increased emitter periphery using a self-registered emitter-base metallization approach. Operating characteristics of CATTS are discussed and compared with normal bipolar transistors.","PeriodicalId":429268,"journal":{"name":"1978 8th European Microwave Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1978-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1978 8th European Microwave Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EUMA.1978.332519","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
New results in the 3-5 GHz region, obtained on CATT cells designed for improved efficiency as microwave power amplifiers, are reported. At 3.0 GHz collector efficiencies of 39% have been measured with 12 dB gain and 1.4 watts peak output power per cell. At 5.0 GHz the results are: 2l% efficiency, 6 dB gain and 0.9 watts output. The improved performance is due to reduced collector-base capacitance and increased emitter periphery using a self-registered emitter-base metallization approach. Operating characteristics of CATTS are discussed and compared with normal bipolar transistors.
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