A reconfigurable in-band digital predistortion technique for mmWave power amplifiers excited by a signal with 640 MHz modulation bandwidth

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Title: A reconfigurable in-band digital predistortion technique for mmWave power amplifiers excited by a signal with 640 MHz modulation bandwidth
Authors: Yu, Chao
Hou, Debin
Sun, Honglei
Zhu, Anding
et al.
Permanent link: http://hdl.handle.net/10197/10329
Date: 21-Dec-2017
Online since: 2019-05-08T07:46:19Z
Abstract: In this paper, a novel in-band digital predistortion (I-DPD) technique with a reconfigurable coefficient pyramid is proposed to linearize a mmWave power amplifier excited by a modulated signal with very large bandwidth, such as 640 MHz. This method can overcome the multiple bandwidth regrowth issue in conventional DPD operation that normally places a burden on the 5G applications. By employing a coefficient pyramid, the proposed method can efficiently select the necessary core functions to build the nonlinear kernels according to the operation modes, which can largely reduce the power consumption and thus increase the system efficiency. Experimental results with 640MHz modulated signal proves that extending the DPD capability into the forthcoming 5G is possible.
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2017 European Microwave Association
Keywords: Digital predistortion5G mobile communicationmmWaveWidebandPower amplifiers
DOI: 10.23919/eumic.2017.8230719
10.23919/EuMC.2017.8231025
Other versions: https://www.eumweek.com/archive/eumweek2017/www.eumweek.com/index.html
Language: en
Status of Item: Not peer reviewed
Is part of: 2017 12th European Microwave Integrated Circuits Conference (EuMIC)
Conference Details: The 12th European Microwave Integrated Circuits Conference, Nuremberg, Germany, 8-10 October 2017
ISBN: 9782874870484
Appears in Collections:Electrical and Electronic Engineering Research Collection

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