一种效率范围超过10db的高效宽带SLMBA

2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI:10.1109/iwem53379.2021.9790578

Chunyu Hu, Jingzhou Pang, Zhijiang Dai, Xiongbo Ran, Weimin Shi, Mingyu Li

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引用次数: 0

摘要

提出了一种10 db高效率宽带射频输入顺序负载调制平衡功率放大器的设计方案。与Doherty功率放大器(DPA)相比，所提出的SLMBA只需改变控制信号的幅值和相位即可实现最优负载调制。由于顺序操作，可以在扩展输出回退(OBO)下保持高效率。基于SLMBA理论，设计了一种1.5 ~ 2.7 ghz宽带功率放大器，并在Advanced Design System软件中进行了仿真。整个工作频段的饱和输出功率为41 ~ 43.8 dbm，漏极效率为59.8% ~ 77.6%，10db OBO效率为46.9% ~ 65.6%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Highly-Efficient Broadband SLMBA With Over 10-dB High Efficiency Range

Design of a broadband RF-input sequential load modulated balanced power amplifier (SLMBA) over 10-dB high efficiency range was presented in this paper. Compared with the Doherty power amplifier (DPA), optimal load modulation can be achieved by the proposed SLMBA only by changing the amplitude and phase of the control signal. Due to the sequential operation, high efficiency performance can be maintained at the extended output back-off (OBO). Based on the SLMBA theory, a 1.5-2.7-GHz broadband power amplifier was designed, and simulated in the Advanced Design System software. The saturated output power measured in the entire operating frequency band is 41-43.8-dBm, the drain efficiency is 59.8%-77.6%, 10-dB OBO efficiencies are 46.9%-65.6%.

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来源期刊

2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)

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