《电讯技术》，不收费还发稿酬的权威期刊、核心期刊！

首页 期刊视频编委会征稿启事出版道德声明审稿流程读者订阅论文查重联系我们English

引用本文：

贾文强,于洪喜,杨飞.一种回退效率增强宽带Doherty放大器的设计[J].电讯技术，2018，58（1）： - . [点击复制]
JIA Wenqiang,YU Hongxi,YANG Fei.Design of a back-off efficiency enhancement broadband doherty amplifier[J].，2018，58（1）： - . [点击复制]

本文已被：浏览 2986次下载 484次	码上扫一扫！
一种回退效率增强宽带Doherty放大器的设计
贾文强,于洪喜,杨飞
0 字体:加大+\|默认\|缩小-
(中国空间技术研究院西安分院，西安 710100)

摘要:

提出给主功放分配多的功率来提高Doherty回退范围的功率转换效率。建立了数学模型，从理论上验证了回退范围的效率提高。电路测试证明，回退6 dB漏极效率大于59〖WT《Times New Roman》〗%〖WTBZ〗，高同类宽带Doherty 7个百分点，峰值输出功率46.5 dBm。另外，对类集总传输线的解析公式进行修正，校正了原来公式在理论计算中存在的32.5〖WT《Times New Roman》〗%〖WTBZ〗的误差确，缩短了设计时间，降低了设计难度。

关键词: 宽带Doherty放大器类集总传输线回退效率

DOI：

基金项目:

Design of a back-off efficiency enhancement broadband doherty amplifier

JIA Wenqiang,YU Hongxi,YANG Fei

()

Abstract:

This paper proposes distributing more power to main amplifier to improve the power conversion efficiency of the back-off scope. A mathematical model is established,which theoretically verifies the efficiency enhancement of the regression. The circuit measurement proves that drain efficiency at 6 dB back-off is greater than 59〖WT《Times New Roman》〗%〖WTBZ〗,7 percentage points higher than that of other wide-band Doherty,and that peak power output is 46.5 dBm. In addition,the analytical formula for the quasi-lumped transmission line is corrected in which there exists 32.5% error,thus reducing the time and difficulty of design.

Key words: broadband Doherty amplifier quasi-lumped transmission line back-off efficiency