Distributed matching network design for broadband power amplifiers

Zhuang, Yuan and Fei, Zhouxiang and Chen, Anqi and Huang, Yi and Zhou, Jiafeng (2018) Distributed matching network design for broadband power amplifiers. In: 2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium (EDAPS), 14-16 December, 2017, Haining, China.

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Abstract

This paper presents a distributed matching network design method for the realization of broadband high-efficiency power amplifiers (PAs). Source-pull and load-pull simulations are employed to determine the optimal input and output impedances of a GaN transistor across 0.3-2.3 GHz. With the optimal source and load impedances across the desired bandwidth, the proposed method can be used to compute and optimize the distributed matching network directly without requiring close-form initial element values. This method will enable a PA to achieve high power added efficiency (PAE) over an ultra-wide bandwidth. A low-pass matching network is applied to implement the optimal impedances over the band. The measured results of the PA indicate a power gain of better than 10 dB and a typical output power of 20 W. The PAE is 59%-69% across a 153% bandwidth. The measurement demonstrates the excellence of the proposed method.

Item Type:	Conference or Workshop Item (Paper)
Faculty / Department:	Faculty of Human and Digital Sciences > School of Computer Science and the Environment
Depositing User:	Zhouxiang Fei
Date Deposited:	21 Feb 2025 14:16
Last Modified:	21 Feb 2025 14:16
URI:	https://hira.hope.ac.uk/id/eprint/4608

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