Abstract
To study electromagnetic scattering from dielectric rough surfaces, a hybrid flnite element method (FEM) combined with boundary integral equations (BIE) is extended to the scattering problem with two half-open regions. Integral boundaries, as truncated boundaries of the FEM region, are employed as artiflcial boundaries of dielectric rough surfaces above and below the rough surface. In the hybrid method, conformal integral boundaries are introduced to reduce the computational region. The validity of our hybrid method is examined by available solutions got from the method of moment (MoM), which indicates the feasibility of our scheme in simulating the scattering from dielectric rough surfaces. Bistatic scattering coe-cient from dielectric rough surfaces is studied in this paper for both polarizations, and functional dependence upon difierent parameters are numerically discussed.
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