High-Q Variable Bandwidth Passive Filters for Software Defined Radio

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    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 publication2nd PROGRESS workshop on Embedded Systems
    Place of PublicationUtrecht
    Number of pages2
    ISBN (Print)90-73461-27-X
    Publication statusPublished - 2001
    Event2nd PROGRESS Workshop on Embedded Systems 2001 - Veldhoven, Netherlands
    Duration: 18 Oct 200118 Oct 2001
    Conference number: 2

    Publication series

    PublisherSTW Technology Foundation


    Workshop2nd PROGRESS Workshop on Embedded Systems 2001
    Abbreviated titlePROGRESS


    • IR-42870
    • EWI-14363
    • METIS-204328

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