Conversion Matrix Analysis of SiGe HBT Gilbert Cell Mixers

Tom Keinicke Johansen, Jens Vidkjær, Viktor Krozer

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    The frequency response of SiGe HBT active mixers based on the Gilbert cell topology is analyzed theoretically. The time-varying operation of the Gilbert cell mixer is taken into account by applying conversion matrix analysis. The main bandwidth limiting mechanisms experienced in SiGe HBT Gilbert cell mixers performing frequency conversion of ultra-wideband signals is discussed. The analysis is verified by computer simulations using a realistic high-frequency large-signal SiGe HBT model. Design optimization steps towards ultra-wideband operation for Gilbert cell mixers is discussed.
    Original languageEnglish
    Title of host publicationIntegrated Nonlinear Microwave and Millimetre-wave Circuits Workshop
    Publication date2004
    Publication statusPublished - 2004
    EventIntegrated Nonlinear Microwave and Millimetre-wave Circuits Workshop - Roma, Italy
    Duration: 5 Nov 1829 → …

    Conference

    ConferenceIntegrated Nonlinear Microwave and Millimetre-wave Circuits Workshop
    CityRoma, Italy
    Period05/11/1829 → …

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