Coordinate transformation formulation of electromagnetic scattering from imperfectly periodic surfaces

Coordinate transformation formulation of electromagnetic scattering from imperfectly periodic surfaces.

This paper considers the electromagnetic scattering problem of periodically corrugated surface with local imperfection of structural periodicity, and presents a formulation based on the coordinate transformation method (C-method). The C-method is originally developed to analyze the plane-wave scattering from perfectly periodic structures, and uses the pseudo-periodic property of the fields. The...

Bistatic Electromagnetic Scattering from Randomly Rough Surfaces

In this paper we propose a bistatic model for electromagnetic scattering from a Gaussian rough surface with small to moderate heights. It is based on the integral equation formulation where the spectral representations of the Green’s function and its gradient are in complete forms, a general approach similar to those used in the advanced integral equation model (AIEM) and the integral equation ...

Electromagnetic scattering from multi-scale rough surfaces

It is shown that the wavelet correlation dimension is a very relevant quantity for the characterization of rough surfaces by remote sensing means. First, the concept of correlation length is generalized to surfaces with wide power spectrum. Second, it is demonstrated that, in the framework of the small-perturbation theory, the wavelet correlation dimension can be retrieved from a knowledge of t...

Theoretical and Computational Aspects of Scattering from Periodic Surfaces: Two-dimensional Perfectly Reflecting Surfaces Using the Spectral-Coordinate Method

We consider the scattering from a two-dimensional periodic surface. From our previous work on scattering from one-dimensional surfaces (Waves in RandomMedia 8, 385(1998)) we have learned that the spectral-coordinate (SC) method was the fastest method we have available. Most computational studies of scattering from two-dimensional surfaces require a large memory and a long calculation time unles...

An analysis of electromagnetic scattering from finite-width strips