  This article addresses the importance of accurate characterization of plasma
parameters for electromagnetic compatibility (EMC) purposes. Most of EMC issues
involving plasma materials are obviously multi-physics problems (linking
chemical, mechanical, thermal and electromagnetic wondering) with deep
interactions. One of the main objectives of this paper is to establish the
theoretical effect of thermal non-equilibrium on electromagnetic wave
propagation. This will be characterized throughout plasma key parameters
(including complex permittivity). Numerical simulations based upon Finite
Integral Technique (FIT) will demonstrate the EMC interest of this methodology
for shielding purposes and general air plasma.
