Dear Experts; I design CPW pattern for the impedance matching with a given load. I think that unlike microstrip line, there is no closed form equation decribing CPW so that the simulator such as 2.5 D simulator may be only solution for the impednace matching, which needs much time and know-how. Is there general rule of thumb in designing the CPW for the purpose descibe above? I searched reference book and paper but so far I cannot find it. Thanks... Kwang-Seong Choi ------------------------------------------------------------------ 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