In-situ high field strength testing using a transportable reverberation chamber

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    Abstract

    A reverberation chamber can create very high fieldstrength with moderate input power. Existing chambers are making use of a paddle wheel to change the resonant modes in the chamber. In the case of a stepper motor, the field is stable for some time, and this type of reverberation chamber is called mode tuned reverberation chamber. If the paddle wheel is continuously rotating we call it a mode stirred reverberation chamber. The mode stirred is much faster in measuring than the mode tuned, but for some applications where the equipment under test has a long dwell time the mode tuned is preferred. A transportable reverberation chamber with varying angles between wall, floor and ceiling and with vibrating walls has been used for in-situ testing of a large radar antenna system. Inside this Vibrating Intrinsic Reverberation Chamber (VIRC) a diffuse, statistically uniform electromagnetic field is created without the use of a mechanical, rotating, mode stirrer. This chamber results in a better homogeneity and increased field strength compared to conventional mode stirred reverberation chambers. But the VIRC has a disadvantage because it cannot be used for mode tuning. In this paper also a Tuneable Intrinsic Reverberation Chamber (TIRC) is presented. The chamber is still made of flexible material and thus transportable, but the modes are changed using either a paddle wheel or by moving the walls in small incremental steps.
    Original languageUndefined
    Title of host publicationProceedings of 2008 Asia-Pacific Sympsoium on Electromagnetic Compatibility & 19th International Zurich Symposium on Electromagnetic Compatibility
    Place of PublicationSingapore
    PublisherAPEMC
    Pages383-386
    Number of pages4
    ISBN (Print)978-981-08-0628-6
    Publication statusPublished - 19 May 2008
    Event1st Asia-Pacific Symposium on EMC (APEMC 2008) & 19th International Zurich Symposium & Exhibition on Electromagnetic Compatibility (EMC Zurich 2008) - Singapore International Conference and Exhibition Center, Suntec, Singapore, Singapore
    Duration: 19 May 200822 May 2008

    Publication series

    Name
    PublisherAPEMC
    NumberDTR08-9

    Conference

    Conference1st Asia-Pacific Symposium on EMC (APEMC 2008) & 19th International Zurich Symposium & Exhibition on Electromagnetic Compatibility (EMC Zurich 2008)
    Abbreviated titleAPEMC - EMC Zurich
    CountrySingapore
    CitySuntec, Singapore
    Period19/05/0822/05/08

    Keywords

    • EWI-13181
    • IR-62418
    • METIS-251122

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