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Waveform engineering applied to linear-efficient PA design

  • J. Lees
  • , M. Akmal
  • , S. Bensmida
  • , S. Woodington
  • , S. Cripps
  • , J. Benedikt
  • , K. Morris
  • , M. Beach
  • , J. McGeehan
  • , P. Tasker
  • Cardiff University
  • University of Bristol

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

9 Scopus citations

Abstract

Low-frequency, baseband effects in Power Amplifiers can become particularly important when steps are taken to improve operational efficiency through the application of 'envelope' based approaches such as Envelope Elimination and Restoration (EER) and Envelope Tracking (ET). The aim of this paper is to demonstrate how a broadband modulated time-domain measurement system, when used in combination with active IF load-pull, can be employed to gain valuable insight into the behaviour of high-frequency power transistors whilst operating under modulated conditions. Also considered is the interesting idea of how PA linearity can be improved using the very mechanisms that are employed to improve efficiency.

Original languageEnglish
Title of host publication2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010
DOIs
StatePublished - 2010
Externally publishedYes
Event2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010 - Melbourne, FL, United States
Duration: 12 Apr 201013 Apr 2010

Publication series

Name2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010

Conference

Conference2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010
Country/TerritoryUnited States
CityMelbourne, FL
Period12/04/1013/04/10

Keywords

  • Amplifier distortion
  • Amplifier efficiency
  • Amplifier linearity
  • Modulation
  • Power amplifier

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