Hi, RF Global Net are offering a download of a white paper that my Agilent colleagues Sanjeev Gupta and Mike Resso co-wrote with Eric Bogatin (Bogatin Enterprises) and Lambert Simonovich (Nortel): "Practical Analysis Of Backplane Vias" In this paper, Dr. Bogatin and his co-authors show how accurate, verified models for vias in a multilayer circuit board are necessary to predict link performance in the multi-gigabit-per-second regime. It describes a method for using measurements on a test vehicle to build a high-bandwidth, scalable model of long vias, including the through- and stub-effects. This model can then be used in Agilent's Advanced Design System for simulation. The methodology provides valuable insight into the root causes of performance limits and how to overcome them. http://www.rfglobalnet.com/download.mvc/Practical-Analysis-Of-Backplane-Vias-0001 Enjoy! -- Colin http://signal-integrity-tips.com <http://signal-integrity-tips.com/> ------------------------------------------------------------------ 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 technical documents are available at: http://www.si-list.net 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