Right-Hand Side Effects: Accuracy of Fast Iterative Solutions of Potential Integral Equation-Based Systems of Multiscale Perfectly Conducting Scatterers

This study investigates the right-hand side effects on the convergence and accuracy of fast iterative solutions of potential integral equations (PIEs) using the incomplete leaf multilevel fast multipole algorithm (IL-MLFMA) for multiscale scattering problems. The analysis focuses on the impact of different plane-wave representations. Numerical results for a canonical example underscore the critical role of these representations in achieving accurate and efficient far-field solutions.