A broadband high-efficiency Doherty power amplifier using symmetrical devices

被引：0
作者：
Zhiqun Cheng
Ming Zhang
Jiangzhou Li
Guohua Liu
机构：
[1] KeyLaboratoryofRFCircuitandSystem,EducationMinistry,HangzhouDianziUniversity
来源：
Journal of Semiconductors | 2018年 / 04期
关键词：
Doherty power amplifier; broadband; high efficiency; symmetric devices;
D O I：
暂无
中图分类号：
TN722.75 [];
学科分类号：
080902 ;
摘要：
This paper proposes a method for broadband and high-efficiency amplification of Doherty power amplifier(DPA)using symmetric devices.In order to achieve the perfect load modulation,the carrier amplifier output circuit total power length is designed to odd multiple of 90°,and the peak amplifier output total power length is designed to even multiple of 180°.The proposed method is demonstrated by designing a broadband high-efficiency DPA using identical 10-W packaged Ga N HEMT devices.Measurement results show that over 51% drain efficiency is achieved at 6-d B back-off power,over the frequency band of 1.9–2.4 GHz.
引用
收藏
页码：76 / 80
页数：5
相关论文
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