Design of A Broadband Asymmetric Doherty PA Using PSO Algorithm With Dynamic Variable Hyperparameters

IF 1.6 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Numerical Modelling-Electronic Networks Devices and Fields Pub Date : 2025-07-15 DOI:10.1002/jnm.70085

Benhao Jin, Zefang Hao, Giovanni Crupi, Jialin Cai

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引用次数: 0

Abstract

In this article, a particle swarm optimization algorithm with dynamic variable hyperparameter is proposed and applied to the optimization design of a wideband asymmetric Doherty power amplifier (DPA). Compared with the optimization algorithm in the common electronic design automation software and the traditional PSO algorithm, the proposed algorithm has stronger convergence and higher optimization performance. The test results show that in the operating frequency band of 1.5–2.2 GHz, the saturation output power (Pout) reaches 43.9–45.1 dBm, and the saturation drain efficiency (DE) reaches 60.3%–64.9%. Additionally, the DE can reach 48%–56% when the back-off is greater than 9 dB. An evaluation of linearity and digital predistortion has also been conducted under the excitation of a 20-MHz 5G new radio (NR) signal. For this DPA, excellent linearity is demonstrated.

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基于动态可变超参数粒子群算法的宽带非对称Doherty PA设计

提出了一种动态可变超参数粒子群优化算法，并将其应用于宽带非对称Doherty功率放大器的优化设计中。与常用电子设计自动化软件中的优化算法和传统粒子群算法相比，该算法具有更强的收敛性和更高的优化性能。测试结果表明，在1.5 ~ 2.2 GHz工作频段，饱和输出功率（Pout）达到43.9 ~ 45.1 dBm，饱和漏极效率（DE）达到60.3% ~ 64.9%。当回退大于9 dB时，DE可达48% ~ 56%。在20mhz 5G新空口（NR）信号激励下，对线性度和数字预失真进行了评估。对于该DPA，证明了良好的线性。

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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来源期刊

International Journal of Numerical Modelling-Electronic Networks Devices and Fields 工程技术-工程：电子与电气

CiteScore

4.60

自引率

6.20%

发文量

101

审稿时长

>12 weeks

期刊介绍： Prediction through modelling forms the basis of engineering design. The computational power at the fingertips of the professional engineer is increasing enormously and techniques for computer simulation are changing rapidly. Engineers need models which relate to their design area and which are adaptable to new design concepts. They also need efficient and friendly ways of presenting, viewing and transmitting the data associated with their models. The International Journal of Numerical Modelling: Electronic Networks, Devices and Fields provides a communication vehicle for numerical modelling methods and data preparation methods associated with electrical and electronic circuits and fields. It concentrates on numerical modelling rather than abstract numerical mathematics. Contributions on numerical modelling will cover the entire subject of electrical and electronic engineering. They will range from electrical distribution networks to integrated circuits on VLSI design, and from static electric and magnetic fields through microwaves to optical design. They will also include the use of electrical networks as a modelling medium.