A comparative study of different Calderón preconditioned PMCHWT formulations

The PMCHWT formulation [1] is widely used to analyze the scattering properties of dielectric objects because it is known to be accurate and free of interior resonance corruption. However, the poor spectrum property owing to the electric field integral equation (EFIE) operator involved in the PMCHWT formulation results in a very slow convergence rate in an… CONTINUE READING