Application of combined field integral equation for electromagnetic scattering by dielectric and composite objects

In this paper a solution of combined eld integral equation (CFIE) for electromagnetic scattering by an arbitrary shaped dielectric object is studied. We derive a novel CFIE formulation in which the electric and magnetic eld integral equations (EFIE and MFIE) are combined in the usual manner outside the object. Inside the object CFIE is composed by changing the roles of EFIE and MFIE. In addition, we consider numerical evaluation of the singular impedance matrix elements with the singularity extraction technique.