Novel single-input single-output two-box polar behavioral model for envelope tracking power amplifiers

  • Saif Najmeddine
  • , Oualid Hammi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, a two-box polar behavioral model is proposed for envelope tracking power amplifiers. The proposed model is built using the parallel combination of the generalized memory polynomial function and a memoryless polynomial function applied to the input signal's magnitude and its phase, respectively. The proposed model is experimentally validated using a Gallium Nitride based envelope tracking power amplifier driven by multi-carrier test signals. The model performance was assessed against that of the conventional generalized memory polynomial model. The results demonstrate that the proposed model consistently outperforms the conventional model in terms of accuracy and complexity. The proposed model converges to an NMSE that is 1dB better than that of the conventional model while requiring significantly lower number of coefficients.

Original languageEnglish
Title of host publicationIEEE 58th International Midwest Symposium on Circuits and Systems
Subtitle of host publicationClimbing to New Heights, MWSCAS 2015 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467365574
DOIs
StatePublished - 28 Sep 2015

Publication series

NameMidwest Symposium on Circuits and Systems
Volume2015-September
ISSN (Print)1548-3746

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

  • Long Term Evolution
  • behavioral modeling
  • distortions
  • envelope tracking
  • memory effects
  • nonlinearity
  • power amplifier

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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