GENERALIZED IMPEDANCE-TYPE BOUNDARY-CONDITIONS FOR THIN PLANAR LAYERSOF VARIOUS MEDIA (REVIEW)

For thin planar layers, a detailed comparative analysis of the differe nt generalized (containing the derivatives with re spect to the fields ) boundary conditions or the impedance type is given, For a dielectric layer, several versions of the boundary conditions suitable for solvi ng different physical problems art: presented, based on the exact expr essions For rile Fourier-transformed components of the electric and ma gnetic fields tangential to the surface. Numerical examples for the re flection and transmission coefficients are given. The physical approac h developed in this paper enables one to generalize the results for la yers of more complex materials, such sis inhomogeneous media and mater ials with complicated electromagnetic properties. Inhomogeneous dielec tric layers are considered, as well as ferrite and other bianisotropic thin layers.