  A novel iterative Equivalent Surface Current (iESC) algorithm has been
developed to simulate the electromagnetic scattering of electrically large
dielectric objects with relatively smooth surfaces. The iESC algorithm corrects
the surface currents to compensate for the electromagnetic field deviation
across the dielectric surface. Numerically validation has been performed with a
dielectric sphere to show the performance of the iESC algorithm. The
experimental result shows that it takes only a few iterations for the algorithm
to increase the surface current accuracy by more than three orders of
magnitude.
