Distributed Matching Network Design for Broadband Power Amplifiers

Zhuang, Yuan ORCID: 0000-0001-9041-8889, Fei, Zhouxiang, Chen, Anqi, Huang, Yi ORCID: 0000-0001-7774-1024 and Zhou, Jiafeng ORCID: 0000-0002-3940-3320 (2017) Distributed Matching Network Design for Broadband Power Amplifiers. In: 2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium (EDAPS), 2017-12-14 - 2017-12-16, 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 (Unspecified)
Uncontrolled Keywords:	Broadband, distributed matching network, high-efficiency, power amplifier
Depositing User:	Symplectic Admin
Date Deposited:	11 Jun 2018 10:29
Last Modified:	19 Jan 2023 06:35
DOI:	10.1109/edaps.2017.8276957
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3020523