An improved exterior moment method analysis of perfectly conducting scatterer by using interior Green´s function

The authors propose an efficient method which minimizes the error of the boundary condition on the surface of the conducting scatterer, and greatly reduces the run time of the computer. The method for obtaining the mutual admittance matrix by using the interior Green´s function is based on the fact that the matrix equation appearing in the moment method can be used for both the exterior problem and the interior problem. The results agree well with those of the conventional moment method and the accuracy is improved in comparison with the results of the least square method. Thus, the validity and the high accuracy of the method are confirmed.<>