A Broadband Potential-Based Boundary Element Method for Modeling Electromagnetic Scattering from Dielectrics and Conductors

We present a boundary element method for electromagnetic scattering analysis, formulated in terms of the magnetic vector and electric scalar potentials rather than electromagnetic fields. The proposed potential-based formulation does not rely on the mutual coupling between electric and magnetic fields, and is therefore able to simulate dielectric objects over a wider range of frequency than is possible with state-of-the-art field-based methods, as demonstrated via numerical examples.