{"title":"Feedforward linearizer with reduced output auxiliary amplifier","authors":"T. Wilson, D. K. Paul","doi":"10.1109/HFPSC.2001.962151","DOIUrl":null,"url":null,"abstract":"Effective feedforward linearization of a power amplifier can be achieved without compromising performance, using an auxiliary amplifier of lower power than the main amplifier overcoming the inefficiency of the classic feedforward configuration, which employs two amplifiers of the same power rating. Reduction of the power rating of the auxiliary amplifier will lead to improved system efficiency. It is shown that the operating output power level and consequential intermodulation distortion level of the main amplifier are critical in determining the minimum saturation power level of the required auxiliary amplifier. Results of theoretical calculations and CAD simulations for the required minimum saturation power level of the auxiliary amplifier are presented and indicate close agreement.","PeriodicalId":129428,"journal":{"name":"6th IEEE High Frequency Postgraduate Colloquium (Cat. No.01TH8574)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2001-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"6th IEEE High Frequency Postgraduate Colloquium (Cat. No.01TH8574)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HFPSC.2001.962151","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
Effective feedforward linearization of a power amplifier can be achieved without compromising performance, using an auxiliary amplifier of lower power than the main amplifier overcoming the inefficiency of the classic feedforward configuration, which employs two amplifiers of the same power rating. Reduction of the power rating of the auxiliary amplifier will lead to improved system efficiency. It is shown that the operating output power level and consequential intermodulation distortion level of the main amplifier are critical in determining the minimum saturation power level of the required auxiliary amplifier. Results of theoretical calculations and CAD simulations for the required minimum saturation power level of the auxiliary amplifier are presented and indicate close agreement.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
