毫米波波段多级CMOS放大器加电效率的改进方法

2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI:10.1109/RFIT49453.2020.9226226

Shun Ito, T. Yoshida, S. Amakawa, M. Fujishima

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引用次数: 0

摘要

由于每级增益小，毫米波频段的功率放大器通常由多级组成。为了在保持线性的同时提高功率附加效率(PAE)，有必要在多个级上优化分配增益压缩。提出了一种最大化多级放大器PAE的增益压缩分配方法。在采用55纳米CMOS工艺和无损级间网络设计的80 ghz功率放大器中，与增益压缩均匀分布到每级的情况相比，PAE提高了2%。

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Improvement Method of Power-Added Efficiency of Multi-Stage CMOS Amplifiers in Millimeter-Wave Band

A power amplifier in the millimeter-wave band usually consists of multiple stages because the gain per stage is small. It is necessary to optimally distribute gain compression over multiple stages to improve power-added efficiency (PAE) while maintaining linearity. This paper proposes a method of gain-compression allocation that maximizes the PAE of a multistage amplifier. In an 80-GHz power amplifier designed using a 55-nm CMOS process and lossless inter-stage networks, the PAE is improved by 2 % as compared to the case where gain compression is evenly distributed to each stage.

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2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)

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