用于宽带应用的具有扩展关断范围的高效序列功率放大器的开发综述

IF 3 4区工程技术 Q3 ENERGY & FUELS Energies Pub Date : 2023-12-28 DOI:10.3390/en17010161

Keyuan Yang, R. Yang, Pang Zhang, W. Shi, Chunyu Hu, W. Shi

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引用次数: 0

摘要

与多尔蒂功率放大器（DPA）类似，顺序功率放大器（SPA）主要由主放大器、辅助放大器和合路器组成。不过，SPA 打破了 DPA 中阻抗反相器的带宽限制，同时也简化了设计程序。由于主放大器没有负载调制，因此 SPA 很容易实现宽带工作，并提高输出背离（OBO）功率范围。因此，SPA 在同时扩大带宽、提高漏极效率和扩大功率放大器的背离范围方面具有很大的优势和潜力。本文介绍了 SPA 的演变和分类。首先，回顾了 SPA 的基本理论。然后，讨论了一些使用耦合器和环行器作为功率合路器的双路 SPA。第三，概述了最新流行的顺序负载调制平衡放大器。

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Development Review of Highly Efficient Sequential Power Amplifier with Extended Back-Off Range for Broadband Application

Similar to a Doherty power amplifier (DPA), a sequential power amplifier (SPA) is mainly composed of a main amplifier, an auxiliary amplifier and a combiner. However, SPA breaks the bandwidth limitation of the impedance inverter in the DPA, and also simplifies the design procedure. Since the main amplifier has no load modulation, it is easy for the SPA to realize broadband operation and improve the output back-off (OBO) power range. Therefore, SPA has great advantages and potential in expanding bandwidth, improving drain efficiency and expanding the back-off range of a power amplifier simultaneously. This paper describes the evolution and classification of the SPA. First, the basic theory of the SPA is reviewed. Then, some two-way SPAs using coupler and circulator as a power combiner are discussed. Thirdly, the latest popular sequential load modulated balanced amplifier is overviewed.

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来源期刊

Energies ENERGY & FUELS-

CiteScore

6.20

自引率

21.90%

发文量

8045

审稿时长

1.9 months

期刊介绍： Energies (ISSN 1996-1073) is an open access journal of related scientific research, technology development and policy and management studies. It publishes reviews, regular research papers, and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.