利用包络跟踪提高宽带顺序功率放大器的效率

2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Pub Date : 2020-07-01 DOI:10.1109/INMMiC46721.2020.9160332

P. Chen, R. Quaglia, J. Lees, B. Merrick, A. Alt, P. Tasker

{"title":"利用包络跟踪提高宽带顺序功率放大器的效率","authors":"P. Chen, R. Quaglia, J. Lees, B. Merrick, A. Alt, P. Tasker","doi":"10.1109/INMMiC46721.2020.9160332","DOIUrl":null,"url":null,"abstract":"This paper demonstrates the first realisation of a sequential power amplifier (SPA) with envelope tracking (ET). Composed of a 10 W main PA and a 23 W peaking PA, the 1.6–2.4 GHz SPA achieves more than 49% drain efficiency at 6 dB back-off across the band through modulating the main PA supply voltage. At 2 GHz, the ET SPA offers more than 45% efficiency at 10 dB back off. Moreover, the linearity of the ET SPA is measured with and without digital predistortion over the band. To the best of the authors’ knowledge, this work is the first investigation where ET has been applied to the SPA.","PeriodicalId":255226,"journal":{"name":"2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Efficiency Enhancement of A Broadband Sequential Power Amplifier Using Envelope Tracking\",\"authors\":\"P. Chen, R. Quaglia, J. Lees, B. Merrick, A. Alt, P. Tasker\",\"doi\":\"10.1109/INMMiC46721.2020.9160332\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper demonstrates the first realisation of a sequential power amplifier (SPA) with envelope tracking (ET). Composed of a 10 W main PA and a 23 W peaking PA, the 1.6–2.4 GHz SPA achieves more than 49% drain efficiency at 6 dB back-off across the band through modulating the main PA supply voltage. At 2 GHz, the ET SPA offers more than 45% efficiency at 10 dB back off. Moreover, the linearity of the ET SPA is measured with and without digital predistortion over the band. To the best of the authors’ knowledge, this work is the first investigation where ET has been applied to the SPA.\",\"PeriodicalId\":255226,\"journal\":{\"name\":\"2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC)\",\"volume\":\"15 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/INMMiC46721.2020.9160332\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/INMMiC46721.2020.9160332","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

摘要

本文演示了具有包络跟踪(ET)的顺序功率放大器(SPA)的首次实现。1.6-2.4 GHz的SPA由一个10w的主PA和一个23w的峰值PA组成，通过调制主PA电源电压，在整个频带的6db回退下实现了49%以上的漏极效率。在2ghz频段，ET SPA在10db后退时的效率超过45%。此外，还测量了带和不带数字预失真的ET SPA的线性度。据作者所知，这项工作是首次将ET应用于SPA的研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Efficiency Enhancement of A Broadband Sequential Power Amplifier Using Envelope Tracking

This paper demonstrates the first realisation of a sequential power amplifier (SPA) with envelope tracking (ET). Composed of a 10 W main PA and a 23 W peaking PA, the 1.6–2.4 GHz SPA achieves more than 49% drain efficiency at 6 dB back-off across the band through modulating the main PA supply voltage. At 2 GHz, the ET SPA offers more than 45% efficiency at 10 dB back off. Moreover, the linearity of the ET SPA is measured with and without digital predistortion over the band. To the best of the authors’ knowledge, this work is the first investigation where ET has been applied to the SPA.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC)

自引率

0.00%

发文量