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Multipath Polyphase Circuits and their Application to Radio Transceivers

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    Abstract

    Nonlinearity and time-variance in Radio Frequency(RF) circuits leads to unwanted harmonics and intermodulationproducts, e.g. in power amplifiers and mixers. This paperreviews a recently proposed multipath polyphase circuittechnique which can cancel such harmonics andintermodulation products. This will be illustrated using a powerupconverter IC as an example. The upconverter works from DCto 2.4 GHz, and the multipath polyphase technique cleans itsspectrum up to the 17th harmonic, keeping unwanted spuriousresponses more than 40dB below the carrier. The technique canalso be useful for other applications, and some possibleapplications will be discussed.
    Original languageEnglish
    Title of host publication2007 IEEE International Symposium on Circuits and Systems
    Place of PublicationPiscataway
    PublisherIEEE
    Pages273-276
    Number of pages4
    ISBN (Print)1-4244-0921-7
    DOIs
    Publication statusPublished - 28 May 2007
    EventIEEE International Symposium on Circuits and Systems, ISCAS 2007 - New Orleans, United States
    Duration: 27 May 200730 May 2007
    http://www.iscas2007.org/

    Conference

    ConferenceIEEE International Symposium on Circuits and Systems, ISCAS 2007
    Abbreviated titleISCAS 2007
    Country/TerritoryUnited States
    CityNew Orleans
    Period27/05/0730/05/07
    Internet address

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