Numerical modelling a metal enclosure covered with a dielectric layer illuminated by an electromagnetic wave, with the MEF and BIM methods

摘要

In this paper we present a numerical method of computation allowing to solve the models problems related to electromagnetic compatibility. A variationelle formulation was developed for analyzing the interaction between an electromagnetic wave and a device. The finite element method (MEF) and the boundary integral method (BIM) have summers adopted. The electric and magnetic fields, states functions of the problem, was the subject of a numerical approach by Withney elements. The numerical results, represented under shape of the same-values graphs and the arrows of the electromagnetic field, shows the behaviour of the electromagnetic wave through the various layers. These results are function of characteristics parameters (σ ,ε,μ) and the thickness of various layers on penetration of electromagnetic field inside the enclosure.