High efficiency wideband envelope tracking power amplifier with direct current sensing for LTE applications

Myoungbo Kwak, Jinseong Jeong, Muhammad Hassan, Jomei J. Yan, Donald F. Kimball, Peter M. Asbeck, Lawrence E. Larson

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

10 Scopus citations

Abstract

A high efficiency wideband envelope tracking power amplifier for LTE applications is presented. The CMOS envelope amplifier with direct current sensing has a measured average efficiency of 78% with a 5 MHz LTE signal. The envelope tracking power amplifier including a GaAs HBT RF stage has overall power added efficiency (PAE) above 46% with an average LTE output power of 27.6 dBm and a gain of 26.5 dB.

Original languageEnglish
Title of host publicationRWW 2012 - Proceedings
Subtitle of host publication2012 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications, PAWR 2012
Pages41-44
Number of pages4
DOIs
StatePublished - 2012
Event2012 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications, PAWR 2012 - Santa Clara, CA, United States
Duration: 15 Jan 201218 Jan 2012

Publication series

NameRWW 2012 - Proceedings: 2012 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications, PAWR 2012

Conference

Conference2012 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications, PAWR 2012
Country/TerritoryUnited States
CitySanta Clara, CA
Period15/01/1218/01/12

Keywords

  • Envelope tracking
  • LTE
  • RF power amplifiers
  • envelope amplifier
  • high efficiency

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