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Output-Controllable Partial Inverse Digital Predistortion for RF Power Amplifiers
Yu, Chao; Allegue-Martínez, Michel; Guo, Yan; Zhu, Anding
In this paper, an output-controllable digital predistortion (DPD) technique is proposed to partially inverse the nonlinear behavior of RF power amplifiers (PAs). Compared to the existing DPD, the proposed method changes the goal that the PA output must be exactly the same as the original input to a new one that the PA output can be arbitrarily controlled according to user's demand. The proposed approach largely expands the capability of DPD and thus provides more flexibility for system designers to effectively use DPD to manipulate the PA output in order to handle more application scenarios and objectively conduct further system optimization. Various application cases have been tested. The experimental results demonstrate that the proposed approach has great potential in future wireless communication system design. Science Foundation Ireland
Keyword(s): Digital predistortion; Linearization; Multi-band; Output control; Power amplifiers; Wideband
Publication Date:
2017
Type: Journal article
Peer-Reviewed: Unknown
Language(s): English
Institution: University College Dublin
Publisher(s): IEEE
First Indexed: 2019-05-11 06:16:50 Last Updated: 2019-05-11 06:16:50