Hello Experts, I have extracted 2 port S-Parameters model of a 1.8V power plane between VRM and load. When I used this S-Parameter model of power plane in simulation software I see a DC drop of about 450 mV with transient analysis. I am a bit skeptic about this result. Could you please comment on this issue? Can you also suggest how to find DC drop from S-Parameters?. Do I have to model also VRM in series to extracted S-Parameter model? Regards, Ravi ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List forum is accessible at: http://tech.groups.yahoo.com/group/si-list List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu