Wideband envelope elimination and restoration power amplifier with high efficiency wideband envelope amplifier for WLAN 802.11g applications

Feipeng Wang, Donald Kimball, Jeremy Popp, Annie Yang, Donald Y.C. Lie, Peter Asbeck, Lawrence Larson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

75 Scopus citations

Abstract

This paper presents the design of a silicon bipolar Class-E wideband envelope elimination and restoration (WBEER) power amplifier with a wideband high efficiency envelope amplifier. The envelope amplifier is composed of a linear op-amp stage and a switch buck converter, which achieves high fidelity and high efficiency amplification of wideband high peak to average (PAR) envelope signals. Experimental results show that the envelope amplifier has a bandwidth of 20MHz and 50-60% efficiency. An overall EER power added efficiency (PAE) of 28% at an output power of 19 dBm was achieved for a WLAN OFDM signal at 2.4GHz.

Original languageEnglish
Title of host publication2005 IEEE MTT-S International Microwave Symposium Digest
Pages645-648
Number of pages4
DOIs
StatePublished - 2005
Event2005 IEEE MTT-S International Microwave Symposium - Long Beach, CA, United States
Duration: Jun 12 2005Jun 17 2005

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2005
ISSN (Print)0149-645X

Conference

Conference2005 IEEE MTT-S International Microwave Symposium
CountryUnited States
CityLong Beach, CA
Period06/12/0506/17/05

Keywords

  • Class d amplifier
  • Class e amplifier
  • Dc-dc converter
  • Envelope elimination and restoration
  • Envelope tracking, envelope amplifier
  • Hysteretic control
  • OFDM
  • Power amplifiers
  • WLAN
  • Wide bandwidth

Fingerprint Dive into the research topics of 'Wideband envelope elimination and restoration power amplifier with high efficiency wideband envelope amplifier for WLAN 802.11g applications'. Together they form a unique fingerprint.

  • Cite this

    Wang, F., Kimball, D., Popp, J., Yang, A., Lie, D. Y. C., Asbeck, P., & Larson, L. (2005). Wideband envelope elimination and restoration power amplifier with high efficiency wideband envelope amplifier for WLAN 802.11g applications. In 2005 IEEE MTT-S International Microwave Symposium Digest (pp. 645-648). [1516688] (IEEE MTT-S International Microwave Symposium Digest; Vol. 2005). https://doi.org/10.1109/MWSYM.2005.1516688