Scattering by coated bodies of revolution using higher order impedance boundary conditions

Higher order impedance boundary conditions (HOIBCs) are applied to three-dimensional dielectric coated bodies of revolution (BOR). Differential equations describing the HOIBC which are based on a locally planar approximation, must first be transformed onto the double curved body of revolution. These equations are then solved along with a standard integral equation to obtain either the monostatic or bistatic radar cross section for the coated BOR. Since the Fourier series expansion of the currents is still applicable to the HOIBC solution, all of the advantages of the standard BOR formulation are retained, along with a reduction in the total number of unknowns required in the solution.<>