Ansys Learning Forum › Forums › Discuss Simulation › Electronics › S-parameter causality issue › Reply To: S-parameter causality issue
Hi Dan,Â
I'm also running into a similar issue where I cannot extract causal PDN Z-parameter models from my package or board design.
If possibe, could you please post a screenshot of your recommended "Compute SYZ-parameters" setup window for the following senario?
PDN Z-parameter extraction up to 10GHz
I reverted all of my capacitors models to C / ESR / ESL approximations to keep things simple.Â
Besides the frequency setup range, I am also curious what you recommend for the other setup options in this window. For reference, I have tried about a dozen different combinations of settings and none of my results can pass 2.5% causality tolerance.