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  • Publication
    Open Access
    Power spectroscopy with electrical reverberation chambers for EMC
    (2018-07) ; ;
    Schlie, Claas Hendrik
    ;
    Vierck, Christian
    ;
    Potthast, Stefan
    ;
    Schaarschmidt, Martin
    ;
    Sabath, Frank
    ;
    Wendt, Kai Uwe
    Critical frequencies at which electromagnetic fields couple into an electronic device can be identified by comparing the power dissipation of a loaded electromagnetic reverberation chamber to that of an unloaded one. However, working conditions that ensure the required statistical electromagnetic field distribution may also imply a bad signal-to-noise ratio for the measured dissipated power. The purpose of this work is to discuss a measurement procedure and methods for data processing that, nevertheless, allow for gaining significant information from a power spectral analysis in a reverberation chamber. This comprises methods that are based on a fit of suited parametric models for the power absorption of uni- or multi-modal resonators. Their validity has been proven by simple DUTs with previously known characteristics.