Ming Ji, D. Teeter, S. Richard, Eric Shull, Dennis Mahoney
{"title":"Envelope tracking power amplifier design considerations for handset applications","authors":"Ming Ji, D. Teeter, S. Richard, Eric Shull, Dennis Mahoney","doi":"10.1109/PAWR.2016.7440154","DOIUrl":null,"url":null,"abstract":"This paper discusses handset power amplifier (PA) design considerations for envelope tracking applications. Tradeoffs between ET mode efficiency, gain, linearity, and RX band noise are described within the constraints of the handset environment. A quasi-F-1 710 MHz HBT PA is discussed which improves peak efficiency by 5 points. Options for the Vcc shaping function are analyzed to address the impact on efficiency, gain, and noise. The paper concludes by comparing stability of two ET system configurations.","PeriodicalId":103290,"journal":{"name":"2016 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications (PAWR)","volume":"4 7","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications (PAWR)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PAWR.2016.7440154","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
This paper discusses handset power amplifier (PA) design considerations for envelope tracking applications. Tradeoffs between ET mode efficiency, gain, linearity, and RX band noise are described within the constraints of the handset environment. A quasi-F-1 710 MHz HBT PA is discussed which improves peak efficiency by 5 points. Options for the Vcc shaping function are analyzed to address the impact on efficiency, gain, and noise. The paper concludes by comparing stability of two ET system configurations.
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