A new method for analyzing the electromagnetic characteristics of a body of complex medium

In the paper, a new method based on the integral equation is presented for the solution of electromagnetic problems associated with complex-media bodies. The new method offers an important advantage that the difficulty in deriving the relevant dyadic Green's function is effectively addressed through reformatting the Maxwell equations and then constructing a pair of coupled equivalent polarized electric and magnetic flux densities. Using this method, only free-space Green's function is needed not matter what materials of the body are involved. Without any loss of generality, the method of moments combined with three-dimensional vector basis functions can be conventionally used to reduce the obtained integral equations into the corresponding matrix equations. In the end, the efficiency of the new method is demonstrated by a representative example of an antenna nearby a bi-isotropic material body.