Improved Efficiency and Accuracy Using Duality in Hybrid SIBC-BEM Formulation

The paper presents a hybrid formulation coupling the surface impedance boundary condition, to deal with conductive and magnetic materials, and the boundary element method to account rigorously for the regularity conditions of the magnetic field at infinity. Based on duality relations, the field variables are associated to spatial elements starting from the dual mesh, overcoming some of the performance issues of the previously published results. The new formulation is suitable to be used to study wireless power transfer devices for automotive applications.