{"title":"Three-way Doherty power amplifier for efficient amplification of wideband signals with extended PAPR","authors":"H. Golestaneh, F. A. Malekzadeh, S. Boumaiza","doi":"10.1109/RWS.2014.6830163","DOIUrl":null,"url":null,"abstract":"This paper deals with three-way Doherty power amplifiers (3W-DPAs) as a viable solution for wideband high-efficiency amplification of multi-standard signals. A methodology is presented to design a 3W-DPA with maximal bandwidth. This methodology was successfully applied to design a 30-W GaN 3W-DPA with a measured average drain efficiency of 55% at an output back-off of up to 9 dB, over the frequency range of 0.73-0.98 GHz. The 3W-DPA was driven with a four-carrier wideband code division multiple access (WCMDA) signal with 20-MHz bandwidth and 11.7-dB peak-to-average power ratio (PAPR) at 830 MHz. Power added efficiencies of 47% was measured at 32 dBm average output power, with an adjacent channel leakage ratio (ACLR) of -48 dBc after linearization.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE Radio and Wireless Symposium (RWS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RWS.2014.6830163","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
Abstract
This paper deals with three-way Doherty power amplifiers (3W-DPAs) as a viable solution for wideband high-efficiency amplification of multi-standard signals. A methodology is presented to design a 3W-DPA with maximal bandwidth. This methodology was successfully applied to design a 30-W GaN 3W-DPA with a measured average drain efficiency of 55% at an output back-off of up to 9 dB, over the frequency range of 0.73-0.98 GHz. The 3W-DPA was driven with a four-carrier wideband code division multiple access (WCMDA) signal with 20-MHz bandwidth and 11.7-dB peak-to-average power ratio (PAPR) at 830 MHz. Power added efficiencies of 47% was measured at 32 dBm average output power, with an adjacent channel leakage ratio (ACLR) of -48 dBc after linearization.
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