{"title":"High efficiency 1 watt HBT power amplifier with harmonic tuning for mobile communications","authors":"C. Pinatel, S. Vuye, C. Dubon-Chevalier, H. Wang","doi":"10.1109/INMMC.1994.512531","DOIUrl":null,"url":null,"abstract":"GaAlAs-GaAs power HBTs have been investigated for handsets in mobile cellular communication system at 1.8 GHz. Different HBTs operating classes have been compared using a simulated multiharmonic load-pull type optimization. The optimum operating class taking into account the power density and the thermal effect has been discussed. Class F amplifiers using HBTs or GaAs MESFETs have been investigated. An HBT amplifier has been designed and fabricated for DCS 1800. 1 W output power with a power-added efficiency of 50% has been measured.","PeriodicalId":164713,"journal":{"name":"Third International Workshop on Integrated Nonlinear Microwave and Millimeterwave Circuits","volume":"9 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Third International Workshop on Integrated Nonlinear Microwave and Millimeterwave Circuits","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/INMMC.1994.512531","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
GaAlAs-GaAs power HBTs have been investigated for handsets in mobile cellular communication system at 1.8 GHz. Different HBTs operating classes have been compared using a simulated multiharmonic load-pull type optimization. The optimum operating class taking into account the power density and the thermal effect has been discussed. Class F amplifiers using HBTs or GaAs MESFETs have been investigated. An HBT amplifier has been designed and fabricated for DCS 1800. 1 W output power with a power-added efficiency of 50% has been measured.
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