Hello Crystal, The standard R, L, and C component will not allow you to define frequency dependence variation in their values. I am sending you an example on your personal email how to create equivalent R, L, and C models using Z1P_Eqn based component and define frequency dependent variation. Sanjeev Gupta EEsof EDA Agilent Technologies Inc. ________________________________ From: crystal box [mailto:crystal.box2007@xxxxxxxxx] Sent: Saturday, March 29, 2008 8:22 PM To: GUPTA,SANJEEV (A-Sonoma,ex1) Cc: si-list@xxxxxxxxxxxxx Subject: Re: [SI-LIST] How to use frequency dependent inductance in Spice simulation Hi, Sanjeev, Many thanks to your help. I have access to ADS. Would you please send me some sample examples? Thanks a lot! Crystal On Sat, Mar 29, 2008 at 10:01 AM, <sanjeev_gupta@xxxxxxxxxxx> wrote: Hi Crystal, It depends upon which simulator you are using? ADS make it very simple to use any frequency dependent data with its High Frequency SPICE simulator. It will allow you to define Inductance value as a function of global variable "freq" either using a variable equation or as a tabular data and include in time domain simulation directly. If you have access to ADS, please let me know and I will send you some sample examples? Sanjeev Gupta EEsof EDA Agilent Technologies Inc. -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of crystal box Sent: Friday, March 28, 2008 9:01 PM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] How to use frequency dependent inductance in Spice simulation The inductance of my model is frequency dependent. Suppose i have the inductance value in frequency domain, how can i use it in spice simulation? Thanks a lot! Crystal ------------------------------------------------------------------ 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 ------------------------------------------------------------------ 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