Higher order impedance boundary conditions for metal-backed inhomogeneous dielectric layers


A systematic spectral-domain approach is described for obtaining higher order electromagnetic impedance boundary conditions for isotropic, longitudinally inhomogeneous, dielectric coatings on a polarization-preserving impedance plane. Representative computational examples including single- and two-layer inhomogeneous coatings are discussed to illustrate the accuracy of the proposed approach.

Microwave and Optical Technology Letters 22(4), 249