Symmetric coupling of finite element method and method of moments using higher order elements

A symmetric coupling of the finite element method (FEM) and the method of moments (MOM) is presented using curved p-refined elements and dual sets of higher order basis functions. These bases enable efficient modeling and significant reductions in the total number of unknowns for a given problem, while satisfying the natural relation between curl-conforming and divergence-conforming quantities when closing the FEM domain by a MoM boundary. The accuracy and efficiency of the new technique are verified in a scattering example.