High-performance digital predistortion test platform development for wideband RF power amplifiers

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Title: High-performance digital predistortion test platform development for wideband RF power amplifiers
Authors: Guan, Lei
Kearney, Ray
Yu, Chao
Zhu, Anding
Permanent link: http://hdl.handle.net/10197/8641
Date: Apr-2013
Abstract: In this paper, a complete design procedure, together with robust system validation approaches, is presented for implementing a high-performance re-configurable digital predistortion (DPD) test platform for compensating for nonlinear distortion and memory effects induced by radio frequency (RF) power amplifiers (PAs) in the transmitters of modern wireless communication systems. This hardware and software co-operated test system not only enables effective validation for DPD algorithm development, but also provides a high-performance and reliable hardware-based linearization test platform. The experimental test was applied on a medium power Doherty amplifier, which was designed for 3 G/4 G wireless communication base stations. By applying our DPD algorithms on the proposed platform, more than 30 dB improvements in adjacent channel power ratio can be achieved for Universal Mobile Telecommunications System and long-term evolution signal excitations.
Type of material: Journal Article
Publisher: Cambridge University Press
Copyright (published version): 2013 Cambridge University Press and the European Microwave Association
Keywords: Power amplifiers and linearizersWireless systems and signal processing (SDR, MIMO, UWB, etc.)
DOI: 10.1017/S1759078713000184
Language: en
Status of Item: Peer reviewed
Appears in Collections:Electrical and Electronic Engineering Research Collection

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