Scattering from a frequency selective surface supported by a bianisotropic substrate

In English In this paper a method for the analysis of a frequency
selective surface (FSS) supported by a bianisotropic substrate is
presented. The frequency selective structure is a thin metallic
pattern — the actual FSS — on a plane supporting substrate.
Integral representations of the fields in combination with the method
of moments carried out in the spatial Fourier domain are shown
to be a fruitful way of analyzing the problem with a complex
substrate. This approach results in a very general formulation
in which the supporting substrate can have arbitrary bianisotropic
properties. The bianisotropic slab can be homogeneous,stratified,
or it can have continuously varying material parameter as a function
of depth. The analysis presented in this paper is illustrated in a
series of numerical examples. Results for isotropic,anisotropic and
bianisotropic substrates are given.