Using measured characteristics of surface mount components in time-domain simulation of high speed analog circuit

Although surface mount components are widely used in high frequency circuit design, the distortion of the characteristics of these devices at high frequencies should be considered during analog circuit design. The work reported in this paper employs a novel combination of measurement results and fast computational tools to provide the circuit response in both time and frequency domains. In particular, this method allows very fast computation of the circuit response (in the time or frequency domain) for systems composed of a variety of elements - including those for which the equivalent circuit is not known. This technique allows the designer to carefully (and quickly) investigate the contribution of individual components to the overall response. In this paper a brief overview is provided of the methods employed.