Accurate and Efficient Solutions of Densely Discretized Closed Conductors Using a Combined Potential-Field Formulation

Karaova G., Eris O., ERGÜL Ö. S.

International Symposium of the Applied-Computational-Electromagnetics-Society (ACES), ELECTR NETWORK, 1 - 05 August 2021 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/aces53325.2021.00022
  • Keywords: Broadband solvers, surface integral equations, potential integral equation, low-frequency breakdown, internal resonance, INTEGRAL-EQUATION, ALGORITHM, MLFMA
  • Middle East Technical University Affiliated: Yes


We present an accurate, efficient, and stable formulation for rigorous analyses of electromagnetic problems involving closed conductors. The formulation, namely the combined potential-field formulation (CPFF), is constructed from the conventional potential integral equations and the magnetic-field integral equation, together with an additional integral equation using the boundary condition for the normal component of the magnetic vector potential. Being both low-frequency-stable and resonance-free, CPFF is a broadband formulation, which enables accurate and efficient solutions of objects with diverse dimensions and discretization sizes.