Partitioned conduction modes in surface integral equation-based impedance extraction

Abstract

In this paper, conduction mode basis functions, previously developed to improve the efficiency of volume integral equation-based electromagnetic analysis of interconnect, are adapted for use in a surface integral equation formulation. A partitioning scheme is introduced to eliminate low-frequency ill-conditioning. Results for a wire, ring and transmission line are used to show that combining partitioned conduction modes with a Galerkin discretization scheme improves the surface integral solver's wideband accuracy and efficiency.