A finite element-boundary integral analysis of electromagnetic scattering by a buried dielectric object

The application of a hybrid finite element-boundary integral (FE-BI) technique to the scattering from a dielectric cylinder buried in a dielectric half-space is presented. The domain in which FEM has to be applied is limited by a fictitious surface /spl Gamma/. The scattered field distribution is numerically evaluated by imposing the proper boundary conditions at the surface /spl Gamma/ and by using a suitable Green's function representation which allows one to take into account the presence of the interface.