>From my simulation experience, I had very consistent simulation & measurement results for >multilayer power structure up to 18GHz. =20 Dear Yang Rui, In your simulations and measurements of multilayer PCBs, have you also considered power planes with slots?=20 If so, what notable differences have you observed between characteristics of planes having splits vs. solid planes at GHz frequencies? Thank you in advance for your reply. Abe Riazi ServerWorks ------------------------------------------------------------------ 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 FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu