Time-domain modelling of interconnects with highly oscillatory sources

Abstract

Purpose

This paper aims to explore a new approach for time-domain modelling of interconnects with highly oscillatory modulated sources.

Design/methodology/approach

The paper uses an asymptotic method in conjunction with the Green’s function of the telegrapher’s equations. The Green’s function is expressed as a series of rational functions in the Laplace domain and are converted to pole-residue form, thereby enabling time-domain implementation.

Findings

The results indicate that the method is accurate for modelling interconnects when wide-varying frequencies are present in the sources.

Originality/value

The technique is important in circuit design for assessing signal integrity and in electromagnetic compatibility testing.

Citation

Condon, M. and Iserles, A. (2018), "Time-domain modelling of interconnects with highly oscillatory sources", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 37 No. 1, pp. 504-519. https://doi.org/10.1108/COMPEL-05-2017-0181