Hi Yubao, sorry to be too direct but you are probably wrong I do not know how your model looks like but I suspect that you possibly have problem in port definition that can be easily solved in any case I would suggest you to contact the Ansoft support Giancarlo ________________________________ Da: si-list-bounce@xxxxxxxxxxxxx per conto di ??? Inviato: mer 04/04/2007 5.31 A: si-list@xxxxxxxxxxxxx Oggetto: [SI-LIST] Extracting waveguide s-parameter on anisotropic material Hi Gurus, Are there anyone have been analyzing SI problem with anisotropic material structure? Now I need to extract one coplanar waveguide s-parameter with anisotropic material structure. It seems that the current EDA tools can not implement such kind of work, even if Ansoft HFSS provide anisotropic material definition, but I fail to extract s-parameters, I suspect the feature of HFSS is useless. Maybe I am wrong with HFSS. Any suggestion will be appreciated. Regards Yubao ------------------------------------------------------------------ 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 <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 ------------------------------------------------------------------ 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