Two fully-integrated linearized polar modulated class E and F power amplifiers (PA) with switch-mode supply modulation are presented. The PAs are implemented in a18μm SiGe BiCMOS process and can be used to transmit varying envelope RF signals operating at 870-920MHz. The class E PA gives a peak output power of 26.4dBm and a maximum efficiency of 62%. The class F PA gives peak output power of 23dBm with 53% drain efficiency. When using delta modulation to control the switch-mode supply, the class F and E polar amplifiers give ACPRs for an EDGE input waveform (at 400kHz offset) of -46dBc and - 37.7dBc respectively.

Original languageEnglish (US)
Title of host publication2006 IEEE Radio Frequency Integrated Circuits(RFIC) Symposium - Digest of Papers
Number of pages4
StatePublished - Dec 1 2006
Event2006 IEEE Radio Frequency Integrated Circuits Symposium - San Francisco, CA, United States
Duration: Jun 11 2006Jun 13 2006

Publication series

NameDigest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
ISSN (Print)1529-2517


Other2006 IEEE Radio Frequency Integrated Circuits Symposium
Country/TerritoryUnited States
CitySan Francisco, CA


  • DC-DC power conversion
  • Delta modulation
  • Power amplifiers
  • Sigma-delta modulation
  • Switching amplifiers

ASJC Scopus subject areas

  • Engineering(all)


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