A tridimensional solenoidal basis function to analyze 3D scattering of homogeneous dielectrics using the method of moments

The use of rectangular and triangular basis functions with the method of moments to analyze the problem of scattering of electromagnetic waves by dielectric objects with high dielectric constant (/spl epsi//sub I/>10) leads to convergence problems due to the spurious charges associated with the basis functions. This paper proposes a solenoidal 3D basis function that can be used in the method of moments to overcome this problem.