Modeling the broadband resistive and inductive behavior of polygonal conductors

This paper describes an accurate method to discretize the Dirichlet-to-Neumann boundary operator for a convex polygonal conductor. The technique is based on an expansion of the boundary value of the current density. Because the corresponding expansion functions exhibit the exact current behavior inside the conductor, they ensure a very good accuracy up to skin effect frequencies. In combination with a classical boundary integral method and the Method of Moments, the Dirichlet-to-Neumann technique allows for a direct determination of the resistive and inductive properties of transmission line configurations constructed from these conductors, as is illustrated with some numerical examples.