Signal propagation in high speed differential transmission line using parallelized finite-difference time-domain method

Abstract

This paper presents the investigations in the electric performance of differential signalling transmission lines used for high speed integrated circuits (IC's) and boards by using the parallelized finite-difference time-domain (FDTD) method. The FDTD method is firstly parallelized with single-program multiple-data (SPMD) architecture using the MPI protocol and experimentally validated. The key electrical factors, crosstalk, impedance of high-speed differential transmission lines, are simulated and investigated for various configuration using the developed parallelized FDTD code. The discussions presented in this paper shall be used a guideline for engineers to optimize high-speed circuit designs with differential signaling transmission lines for signal integrity (SI) and electromagnetic compatibility (EMC).