Analysis of the operation of a Hybrid amplifier based on the Doherty amplifier
Analysis of the operation of a Hybrid amplifier based on the Doherty amplifier
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DOI：
10.23919/apmc55665.2022.9999861
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发表时间：
2022-11
期刊：
影响因子：
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通讯作者：
Ren Furumoto;Daisuke Yasunobu;K. Nishikawa
中科院分区：
文献类型：
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作者：
Ren Furumoto;Daisuke Yasunobu;K. Nishikawa
本文分析了低输出端异相工作、高输出端Doherty工作的混合放大器回退区的极限点。电路配置由两个并联的Doherty放大器连接到Chireix组合器。对Doherty放大器进行了负载牵引仿真，并根据获得的回退效率设计了Chireix合路器。从使用对称和非对称Doherty放大器设计的混合放大器的仿真结果，证实了回退效率的限制点是在不改变Doherty放大器的参数的情况下连接Chireix组合器的配置的负载牵引数据的漏极效率。
This paper analyzes the limit points of the backoff region of a Hybrid amplifier with outphasing operation on the low output side and Doherty operation on the high output side. The circuit configuration consists of two parallel Doherty amplifiers connected to a Chireix combiner. The Doherty amplifiers were load-pull simulated, and the Chireix combiner was designed based on the impedance of the obtained backoff efficiency. From the simulation results of the Hybrid amplifier designed using symmetrical and asymmetrical Doherty amplifiers, it was confirmed that the limiting point of backoff efficiency is the drain efficiency of the load-pull data for the configuration in which the Chireix combiner is connected without changing the parameters of the Doherty amplifier.