Analysis of cross‐talk on high‐speed digital circuits using the finite difference time‐domain method

Abstract

SUMMARYCross-talk and pulse distortion in high-speed digital circuits have long been major design considerations. With the present trend towards increased speed and packing density the commonly used TEM approximation is no longer capable of producing sufficiently accurate results. In this contribution, the finite-difference timedomain technique incorporating a novel means of launching the pulses is used to provide a rigorous threedimensional simulation of cross-talk on high-speed digital circuits. This includes the often-neglected effects of higher-order modes and surface waves. Results are presented for pulses propagating along a single track and for coupling between two and three tracks using square, gaussian and raised cosine pulse excitation functions. The results are shown to be in good agreement with other rigorous analyses.

Transient Analysis of Printed Circuit Board Layouts using a Time Domain Solution of Kirchoff's Network Equations

“…A stepped impedance microstrip filter, 3. Interconnections within an IC package and a PCB track Example 1 has been previously analysed using both the Spectral Domain method [4] and the FDTD method [5]. Example 2 has been previously analysed in [11 in which there are measured and calculated results.…”

Modelling Electromagnetic Radiation From Digital Electronic Systems By Means Of The Finite Difference Time Domain Method

“…Katz, D S, Piket-May, M J, Taflove, A and Umashankar, K M, "FDTD analysis of electromagnetic wave radiation from systems containing horn antennas", IEEE Trans, AP-39,August 1991August ,1203August S, 1966 "Numerical solutions of initial boundary value problems involving Maxwell's equations in isotropic media" IEEE Trans No. 3,[302][303][304][305][306][307] Celuch-Marcysiak, M and Gwarek, W K, "Formal equivalence and efficiency comparison of FDTD, TLM and SN methods in application to microwave CAD programs", Proc.…”