Hi, ALL: I am doing hand calculation to estimate the Xtalk. I have a cross-talk noise budget (for both backward(Near End) and forward(Far End) noise) and want to estimate the min space needed between two microstrip lines. 1) Based on the Xtalk noise budget, I estimated the backward crosstalk coefficient Kb and forward crosstalk coefficent Kf through Vb=Kb*Vm and Kf*L*Vm/Tr 2) But I don't know how to find the Min Space from the Kf and Kb. Can someone give me suggestions,relative papers or URL links? Thanks in advance. Lei Luo Research Assistant ECE, NC State University ------------------------------------------------------------------ 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