An 8-10 GHz upconversion mixer, with a low-frequency calibration loop resulting in better than -73dbc in-band spurs

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    Abstract

    Abstract—An 8-10 GHz X-band upconversion quadrature mixer stage implemented in 250 nm SiGe BiCMOS is presented. Orthogonality of the spurious responses caused by clock feed through, I/Q mismatch and baseband harmonics after self-mixing was exploited to realize a baseband calibration scheme reducing all in-band spurs down to below -73dBc, for baseband signals up to a bandwidth of 2MHz and with an IF center frequency up to 100MHz. Utilizing a low-frequency output spectrum analysis of an integrated self-mixer at the upconversion mixer output for calibration, eliminates the need for expensive microwave frequency spectrum analyzers
    Original languageEnglish
    Title of host publication2016 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)
    Place of PublicationPiscataway, NJ
    PublisherIEEE
    Pages7-10
    Number of pages4
    ISBN (Print)978-1-4673-8651-7
    DOIs
    Publication statusPublished - 22 May 2016
    Event2016 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2016 - Moscone Convention Center, San Francisco, United States
    Duration: 22 May 201624 May 2016

    Publication series

    Name
    PublisherIEEE

    Conference

    Conference2016 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2016
    Abbreviated titleRFIC
    CountryUnited States
    CitySan Francisco
    Period22/05/1624/05/16

    Keywords

    • EWI-27092
    • METIS-318466
    • IR-101088

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