Accurate transmission lines characterization via higher order moment method solution of novel single-source integral equation

A new method for high precision extraction of per-unit-length inductance and resistance in the multi-conductor transmission lines (MTLs) is presented. The approach is based on higher-order geometrical representation of the MTL cross-section followed by higher-order method of moment discretization of a novel surface single-source integral equation. Through comparison against the analytically available solutions, the method is shown to achieve 6 digits of precision in the extracted MTL's resistance (R) and inductance (L) using moderate computational resources. The proposed approach paves a way for numerically inexpensive characterization of MTLs of arbitrary cross-sections with analytic-like quality.