Scattering of electromagnetic waves by inhomogeneous dielectric gratings loaded with parallel perfectly conducting strips

In this paper, we have proposed a new method for the scattering of electromagnetic waves by inhomogeneous dielectric gratings loaded with parallel perfectly conducting strips using the combination of improved Fourier series expansion method and point matching method. Our approach also can treat periodic configurations having arbitrary combinations of dielectric, metallic, and perfectly conducting components. Numerical results are given for the transmitted scattered characteristics for the case of frequency loaded with parallel perfectly conducting strips for TE and TM waves.