Transient Continuation

If transient analysis fails, Nexxim checks to see whether a nonpassive S-parameter element could be the cause. If a suspicious element is detected, Nexxim sets option s_element.enforce_passivity=7 to enable passivity checking and enforcement by the IFPV method, and then retries the transient analysis. To disable automatic transient continuation for S-elements, set option s_element.auto_enforce_passivity=0. For W-elements, the option to disable automatic transient continuation is w_element.auto_enforce_passivity=0.

Note:

The global option auto_enforce_passivity=0 overrides any passivity enforcement set for s_element or w_element.

See Circuit S-Parameter Technical Notes for more details.