• DocumentCode
    1630464
  • Title

    A supply modulator with nested structure for wideband envelope tracking power amplifier

  • Author

    Wang, Zhancang

  • Author_Institution
    Nokia Siemens Networks, CTO Res., Beijing, China
  • fYear
    2012
  • Firstpage
    5
  • Lastpage
    8
  • Abstract
    In this paper, a novel supply modulator with nested structure for envelope tracking base-station power amplifier was presented, which boosts average modulator efficiency by realizing additional peak efficiency points both in linear amplifier & current source array. Tuneable peak efficiency points make a flexible efficiency adaptation for various wideband signal character besides efficiency boosting.
  • Keywords
    modulators; power amplifiers; wideband amplifiers; average modulator efficiency; current source array; envelope tracking base-station power amplifier; linear amplifier; nested structure; supply modulator; wideband envelope tracking power amplifier; Arrays; Modulation; Peak to average power ratio; Power amplifiers; Power generation; Wideband; DC-DC power converters; energy efficiency; peak to average power ratio; power amplifiers; power supplies; wideband;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Power Amplifiers for Wireless and Radio Applications (PAWR), 2012 IEEE Topical Conference on
  • Conference_Location
    Santa Clara, CA
  • Print_ISBN
    978-1-4577-1119-0
  • Type

    conf

  • DOI
    10.1109/PAWR.2012.6174939
  • Filename
    6174939