Relating Crosstalk to Plane-Wave Field-to-Wire Coupling

Flavia GRASSI  Giordano SPADACINI  Keliang YUAN  Sergio A. PIGNARI  

IEICE TRANSACTIONS on Communications   Vol.E99-B   No.11   pp.2406-2413
Publication Date: 2016/11/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2016EBP3027
Type of Manuscript: PAPER
Category: Electromagnetic Compatibility(EMC)
aerospace standards,  crosstalk,  field-to-wire coupling,  radiated susceptibility,  weak coupling assumption,  

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In this work, a novel formulation of crosstalk (XT) is developed, in which the perturbation/loading effect that the generator circuit exerts on the passive part of the receptor circuit is elucidated. Practical conditions (i.e., weak coupling and matching/mismatching of the generator circuit) under which this effect can be neglected are then discussed and exploited to develop an alternative radiated susceptibility (RS) test procedure, which resorts to crosstalk to induce at the terminations of a cable harness the same disturbance that would be induced by an external uniform plane-wave field. The proposed procedure, here developed with reference to typical RS setups foreseen by Standards of the aerospace sector, assures equivalence with field coupling without a priori knowledge and/or specific assumptions on the units connected to the terminations of the cable harness. Accuracy of the proposed scheme of equivalence is assessed by virtual experiments carried out in a full-wave simulation environment.