Title :
Sensing coupling paths in an equipment
Author :
Cozza, Andrea ; Galle, Charlie ; Brasile, Jean-Pierre ; Carel, Christian
Author_Institution :
Dept. de Rech. en Electromagn., Univ. Paris-Sud, Gif-sur-Yvette, France
Abstract :
We present experimental results proving that a Time-Reversal Electromagnetic Chamber allows studying the susceptibility of a device to external radiated interference. The technique here proposed is based on the generation of wavefronts focusing over an arbitrary position in space, leading to a spatial resolution of a half-wavelength. By monitoring the level of energy transmitted through the shielding of the device, it is found that this technique can identify the presence of coupling paths (e.g., slots), their position and orientation. The information thus retrieved is much richer than that yielded by standard EMC tests in anechoic or reverberation chambers, where the position of such coupling paths is not readily accessible.
Keywords :
anechoic chambers (electromagnetic); electric sensing devices; electromagnetic compatibility; electromagnetic devices; reverberation chambers; EMC tests; anechoic chambers; electromagnetic compatibility; external radiated interference; half-wavelength spatial resolution; reverberation chambers; sensing coupling paths; time-reversal electromagnetic chamber; Antennas; Couplings; Electromagnetic compatibility; Electromagnetics; Focusing; Surface waves; Transmission line measurements; Cavities; stochastic fields; test facilities;
Conference_Titel :
Electromagnetic Compatibility (APEMC), 2012 Asia-Pacific Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-1557-0
Electronic_ISBN :
978-1-4577-1558-7
DOI :
10.1109/APEMC.2012.6237887