Computing the plane electromagnetic wave transient propagation in lossy medium based on COMSOL

It was very important for geophysical exploration to study the electromagnetic wave transient propagation characteristic in the lossy medium. A method for computing the electromagnetic wave transient propagation characteristic in layered medium based on the finite element simulation software COMSOL multi-physics was studied and the absorbing boundary condition and numerical stability condition were analyzed. The two layer medium model was set up and the numerical modeling of the plane wave propagating characteristic was conducted. It was found that the temporal fluctuation characteristic analysis of electromagnetic wave propagation in multilayer medium might provides an indication of the boundary position.