Scattering from the stratified uniaxial anisotropic media in directional source excitation in the spectral domain

In order to evaluat the scattering from stratified uniaxial anisotropic media (UEAM) in directional source excitation in the spectral domain. In this way, the reflection field of an infinite ideal conductor plate coated with a uniform anisotropic dielectric layer is estimated, which involves every wave mode of the multiple reflections theoretically. Initially, the spectral formulas of radiation of point source in free space and in the electric anisotropic slab under point source excitation are proposed. The boundary conditions of the upper and lower surfaces of the anisotropic plate are then used to solve the complex amplitude of the scattering field in the spectral domain. Using the saddle point method (SPT) to approximate the scattering field in the airspace, the scattering field is obtained from the scattering field. The accuracy of the approximate solution is verified by comparison with the results of the method of moments (MOM).