A Fourier Approach to Model Electromagnetic Fields Scattered by a Buried Rectangular Cavity

Abstract EN

We consider the problem of a two-dimensional rectangular cavity in a PEC half plane covered by layers of material with uniform thickness.

The rectangular geometry allows for an application of Fourier methods to solve the problem.

The paper will also discuss how to compute the far field scattering once the solution is found.

The fast mode matching approximation technique developed by Morgan and Schwering will be applied to this layered cavity problem setting.

Numerical results will show that using the Fourier solution on the layered problem combined with Morgan and Schwering's technique can produce good approximations while using much less computation time than would be required for the entire solution.