High-Q variable bandwidth passive filters for Software Defined Radio

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    Abstract

    An important aspect of Software Defined Radio is the ability to define the bandwidth of the filter that selects the desired channel. This paper describes a technique for channel filtering, in which two passive filters are combined to obtain a variable bandwidth. Passive filters have the advantage of high linearity, low noise and inherent energy efficiency. After an explanation of the concept, the requirements on the subsequent analog-todigital conversion are compared with those in a system where (part of) the channel selection is performed digitally. Some drawbacks of the concept are discussed. Finally, conclusions are drawn and our ideas for further research are presented.
    Original languageUndefined
    Title of host publicationThe Fourth International Symposium on Wireless Personal Multimedia Communication (WPMC 2001)
    Place of PublicationAalborg
    PublisherAalborg Universitetsforlag
    Pages1571-1572
    Number of pages2
    ISBN (Print)8798856804
    Publication statusPublished - Sep 2001
    EventThe Fourth International Symposium on Wireless Personal Multimedia Communication (WPMC 2001) - Aalborg, Denmark
    Duration: 9 Sep 200112 Sep 2001

    Publication series

    Name
    Volume3

    Conference

    ConferenceThe Fourth International Symposium on Wireless Personal Multimedia Communication (WPMC 2001)
    Period9/09/0112/09/01
    Other9-12 September 2001

    Keywords

    • flexibility
    • IR-42031
    • analog front-end
    • EWI-14350
    • METIS-200229
    • Software Defined Radio
    • passive filter

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