摘要

In this paper, a Calderon-preconditoned single source combined field integral equation (SSCFIE) has been developed to analyze electromagnetic scattering from bi-isotropic objects. The field decomposition method is adopted to split the homogeneous bi-isotropic media into two uncoupled isotropic media instead of direct calculation of complicated Green's function in bi-isotropic material. Unlike dual source integral equation, the Calderon-preconditioned single source electric and magnetic integral equations in the presence of bi-isotropic media are constructed and combined to make the proposed algorithm free from dense mesh breakdown and spurious resonance. Numerical results show good performance of the proposed algorithm.