A Discontinous Galerkin Integral Equation Method for Surface-Wire Structures

The surface-wire integral method is an efficient and versatile tool for analyzing electromagnetic radiation and scattering problems involving thin wires and arbitrarily shaped bodies. However, the conformal mesh for structures with dense surface-wire junctions can be challenging to generate and results in a large number of unknowns. In this letter, the implementation of the discontinuous Galerkin integral equation (DGIE) for surface-wire structure so that mesh generation for surfaces and wires is performed individually is reported. The formulation to evaluate the interaction of specially defined basis functions is presented in the DGIE framework. Numerical experiments show that the proposed method can reduce the unknown numbers and mesh flexibly, which can improve computational efficiency without losing accuracy.