Scattering From a Bi-Isotropic Object of Arbitrary Shape

The scattering problem for a bi-isotropic object of arbitrary shape is considered. Boundary integral equations are derived in a rigorous way through the dyadic Green's functions for the bi-isotropic medium. The boundary integral equations are solved numerically by the method of moment with a triangular patch modeling and numerical results are presented. In particular, the numerical results for a bi-isotropic sphere are compared with an explicit solution which is derived through the expansions of the spherical vector wave functions.