Mixed time/frequency-domain modeling of cross-talk phenomena in coupled microstrip lines terminated with digital circuit

This work presents results of cross-talk modeling in system of edge-coupled microstrip lines loaded with nonlinear termination representing input/output pin of a real digital circuit. Analytical approach based on mixed time/frequency-domain description allows for inclusion of the line dispersion effect and waveform analysis accessibility. To eliminate complicated computations in order to achieve nonlinear load response, the algorithm makes use of combination of Volterra and Taylor series. Simulation results, obtained from a specially designed software tool, called XTalk, are compared with data gathered from real circuit measurements.