접지된 유전체층 위에 위치한 스트립 격자구조의 회절에 대한 급속한 수렴해에 관한 연구

On the Fast Convergent Solution for Diffraction by a Strip Grating with a Grounded Dielectric Layer

The scattering problem of a transverse electric (TE) plane wave by strip grating with a dielectric slab over a ground plane is analyzed by the method of moments. By use of equivalence principle, surface magnetic current density on the shorted slot is expanded in a series of Chebyshev polynomial a satisfying the appropriate edge condition. Numerical results for reflection coefficient are obtained and compared with other available results. Our numerical results obtained from the present method are in good agreement with other result available in the literature.