Galerkin-MoM analysis for dielectric scatters by using sinusoidal reaction technique

The Galerkin-MoM analysis was reported, where the uniform function is used as the basis and test functions, and the double volume integral was reduced to a triple integral. However, the discontinuity of the polarization current between the neighboring dielectric blocks still remains because of use of the uniform basis function. In this paper, a method using the sinusoidal functions for the basis and test functions is presented to avoid the problem of the discontinuity. The mutual impedance between the dielectric blocks is expressed as a triple integral form instead of the double volume integral. Numerical results are shown to demonstrate the accuracy and the short CPU time of the proposed procedure.