High-efficiency, high-linearity envelope tracking power amplifier for mobile UHF applications

Jonmei J. Yan, Donald Kimball, Chin Hsia, Hsuan Yu Pan, Scott Ricketts, Houman Ghajari

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

4 Scopus citations

Abstract

In next generation mobile military applications, where competing constraints like high linearity and high efficiency is required to allow for energy savings and signal integrity, envelope tracking offers a promising solution. The representative signal used throughout the paper is a 5 MHz single-carrier uplink WCDMA signal with 3.3 dB peak to average power ration (PAPR) centered around 300 MHz. In this paper, we demonstrate high efficiency and linearity at high output power (85W and 150W) using a mobile UHF signal waveform. Efficiencies greater than 60% with at least 20 dB of gain while meeting ACPR requirements were achieved. In the case with 85 W output power, a single push-pull power amplifier was used in conjunction with one drain modulator. While in the 150W output power configuration, a dual modulator approach was used.

Original languageEnglish
Title of host publication2010 IEEE Military Communications Conference, MILCOM 2010
Pages1572-1576
Number of pages5
DOIs
StatePublished - 2010
Externally publishedYes
Event2010 IEEE Military Communications Conference, MILCOM 2010 - San Jose, CA, United States
Duration: 31 10 201003 11 2010

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM

Conference

Conference2010 IEEE Military Communications Conference, MILCOM 2010
Country/TerritoryUnited States
CitySan Jose, CA
Period31/10/1003/11/10

Keywords

  • Efficiency
  • Envelope tracking
  • Linearity
  • Power amplifiers
  • UHF

Fingerprint

Dive into the research topics of 'High-efficiency, high-linearity envelope tracking power amplifier for mobile UHF applications'. Together they form a unique fingerprint.

Cite this