Describes a theoretical analysis of the illumination of a hollow, conductive object containing a wire by a non-planar wave. Much EMC testing is performed at antenna-test object separation distances that are small compared to the wavelength. The authors show that such 'near-field' (Fresnel zone) testing produces coupling responses markedly different from that encountered due to plane wave (where the wave impedance is 377 ohm) incidence. There is practical verification for this-in 1983, the effect was noted in an aircraft trial.


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    Title :

    The effects of variations in wave impedance in the coupling of large lossy bodies to external electromagnetic fields


    Additional title:

    Auswirkungen von Änderungen der Wellenimpedanz bei der Kopplung großer verlustbehafteter Körper mit externen elektromagnetischen Feldern


    Contributors:
    South, G. (author) / Loller, C.P. (author)


    Publication date :

    1991


    Size :

    , 2 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






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