An Excitation-Aware and Self-Adaptive Frequency Normalization for Low-Frequency Stabilized Electric Field Integral Equation Formulations

The accurate solution of quasi-Helmholtz decomposed electric field integral equations (EFIEs) in the presence arbitrary excitations is addressed: Depending on specific excitation, components induced current density do not have same asymptotic scaling frequency, and thus, are solved for with, general, different relative accuracies. In order to ensure scaling, we propose a frequency normalization scheme EFIEs, which adapts itself excitation valid irrespective underlying topology structure. Specifically, neither an ad hoc adaption nor priori information about needed as factors derived based norms right-hand side (RHS) frequency. Numerical results corroborate presented theory show effectiveness our approach.