An edge based finite element formulation with vector absorbing boundary conditions is presented for scattering by composite structures having boundaries satisfying impedance and/or transition conditions. Remarkably accurate results are obtained by placing the mesh a small fraction of a wavelength away from the scatterer. Chatterjee, A. and Jin, J. M. and Volakis, John L. Unspecified Center NASA-CR-190352, NAS 1.26:190352, UMICH-025921-29-T NAG2-541...
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