Modeling HEMT intermodulation distortion characteristics

Guoli Qu*, Anthony E. Parker

*Corresponding author for this work

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

    Abstract

    The significance of the nonlinearity of HEMT capacitance models to the prediction of intermodulation is investigated. Three capacitance models, one linear and two with contrasting nonlinear behavior, are shown to exhibited almost identical performance. It is concluded that the nonlinearity of the low-frequency model is the dominant distortion generating component. Development of capacitance models with accurate high-order derivatives is unwarranted without an accurate dc model. Therefore, careful characterization of the drain current description is most important for successful circuit simulation.

    Original languageEnglish
    Title of host publicationDesign, Characterization, and Packaging for MEMS and Microelectronics
    EditorsBernard Courtois, Serge N. Demidenko
    Place of PublicationWashington, DC
    PublisherSPIE
    Pages396-402
    Number of pages7
    Volume3893
    ISBN (Print)9780819434944
    DOIs
    Publication statusPublished - 8 Oct 1999

    Publication series

    NameProceedings of SPIE
    PublisherSPIE
    Volume3893
    ISSN (Print)0277-786X

    Keywords

    • high electron mobility transistors
    • intermodulation distortion
    • nonlinear capacitance models
    • HEMT

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