To Dear All: I extracted RLCG matrices using Ansoft's sofrware. Then I calculated corsstalk in terms of voltage and current in frequency domain with well-known multiconductor theory. I have no access to measure the devices what I have simulated, so I would like to validate and interpret it by another means. (one thing that I found is that high freq. does not necessarily mean high corsstalk.) Is there any good way to do it? The software or numerical approach should be possible to excite differentially, terminate with inductance, inductance and capacitance . From the previous post, I tried (1) www.ultracast.com (2) www.bay-technology.com (3) www. innoveda.com (4) SignalSpeed but the softwares from above either give only time domain results, hard to learn or there is no room for try with demo version. By the way, is it any FDTD program that is able to include lumped element terminations? I know how to use FDTD program called "LC", but I am not allowed to use lumped circuit elements. I want to FFT it then compare it with my freqeuncy domain results. Thanks se-ho You ------------------------------------------------------------------ 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 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