Abstract
A Calderon preconditioned single-source equation to model the scattering at homogeneous high dielectric contrast media is presented. It is shown that the proposed interaction matrix remains well-conditioned when scattering at media with high permittivity, including arbitrary losses, is considered. The discretization scheme involves Rao–Wilton–Glisson and Buffa–Christiansen basis functions, which are compatible with existing commercial method of moments software. The efficiency and accuracy of the proposed solution scheme is confirmed by numerical examples.
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