Power amplifier memory-less pre-distortion for 3GPP LTE application

Souheil Ben Smida, Kevin A. Morris, J. Lees, P. Wright, J. Benedikt, Paul J. Tasker, Mark A. Beach, Joe P. McGeehan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

A new and simple power amplifier (PA) linearization method is proposed and demonstrated using a very high efficiency yet inherently nonlinear inverse class-F PA. This was conducted in the presence of a generic variable envelope RF signal in order to extract its AM-AM and AM-PM characteristics. Deducing the polynomial pre-distortion parameters from the AM-AM and AM-PM characteristic has resulted in the successful linearization of the PA in the presence of 3GPP long term evolution (LTE) signals. The results obtained for the PA - a 12 W GaN HEMT inverse class-F structure designed to operate at 900 MHz - demonstrate the proof of concept and the efficiency of the proposed linearization technique with significant advantageous reduction in base-band resources for 3GPP LTE applications.
Original languageEnglish
Title of host publication2009 European Microwave Conference (EuMC)
PublisherIEEE
Number of pages4
ISBN (Print)9781424447480
DOIs
Publication statusPublished - 30 Oct 2009

Keywords

  • power amplifier
  • pre-distortion
  • 3 GPP LTE

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