On attaching a wire to a triangulated surface

There have been many papers that have focused on the attachment of wires to surfaces. The focus of this paper is on wires connected to arbitrarily shaped surfaces, a body that may be modeled with triangles as described by Rao, Wilton and Glisson (1982). The basis function for the wire-to-surface junction is constructed by building the 1/r variation of the surface current near the junction into the surface current. In the following we summarize junction bases as currently used. In the presentation we consider their numerical implementation, examine alternative formulations, and review validation studies that prove the approach is robust with respect to wire orientation and surface geometry at the junction.