ON THE COMPUTATION OF THE COMPLETE SPECTRAL GREENS DYADIC FOR LAYEREDBIANISOTROPIC STRUCTURES

This paper shows how to obtain a systematic algorithm for computing th e complete spectral Green's dyadic (CSGD) of multilayered bianisotropi c planar structures. The top and bottom boundary conditions of the str uctures can be either electric/magnetic walls or any kind of boundary condition suitable for implementation by means of impedance/admittance dyadics. The method presented here makes use of the fact that the she ets of normally directed surface electric-/magnetic-current density ca n be transformed into equivalent sheets of transverse electric-/magnet ic-current density. Once the problem has been reduced to deal only wit h transverse current densities, the equivalent boundary method (EBM) i s extended to obtain the CSGD. This method has been applied to compute the radiation characteristics of arbitrarily oriented dipoles embedde d in different layered structures.