Fast Reduced-Order Finite-Element Modeling of Lossy Thin Wires Using Lumped Impedance Elements

Abstract

The spatial discretization of a thin wire often leads to a highly dense mesh in the peripheral region and thus increases the computational burden. In this paper, lossy conducting wires are modeled with infinitely thin lumped impedance elements, which significantly reduce the modeling complexity while still offers an accurate broadband modeling. This paper also describes the incorporation of lumped elements into our model order reduction formulation and the tree-cotree splitting technique.