Variable-Voltage Class-E Power Amplifiers

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

    14 Citations (Scopus)
    185 Downloads (Pure)

    Abstract

    Abstract—The Class-E power amplifier is widely used due to its high efficiency, resulting from switching at zero voltage and zero slope of the switch voltage. In this paper, we extend general analytical solutions for the Class-E power amplifier to the ideal single-ended Variable-Voltage Class-E (Class-EV V ) power amplifier that switches at zero slope but not necessarily at zero voltage. The theory is verified by simulations and measurements, and show that the peak switch voltage of Class-EV V power amplifier is lower (up to ≈ 30% ) than in the conventional Class-E power amplifier; which can be utilized to obtain e.g. higher output power (up to ≈ 200% more) with lower power-added efficiency (maximum ≈ 20% less) from technologies with low-breakdown voltages. Index Terms— Power amplifiers, switching amplifiers.
    Original languageUndefined
    Title of host publicationThe IEEE MTT-S International Microwave Symposium 2007 (IMS 2007)
    Place of PublicationPiscataway
    PublisherIEEE
    Pages1095-1098
    Number of pages4
    ISBN (Print)1-4244-0688-9
    DOIs
    Publication statusPublished - 3 Jun 2007
    EventInternational Microwave Symposium 2007 - Honolulu, United States
    Duration: 3 Jun 20079 Jun 2007

    Publication series

    Name2007 IEEE MTT-S International Microwave Symposium Digest, (IMS 2007
    PublisherIEEE Press
    Number06472
    ISSN (Print)0149-645X

    Conference

    ConferenceInternational Microwave Symposium 2007
    Abbreviated titleIMS 2007
    Country/TerritoryUnited States
    CityHonolulu
    Period3/06/079/06/07

    Keywords

    • EWI-10002
    • IR-58153
    • METIS-241651
    • ICD-RELIABLE RF

    Cite this