[SI-LIST] Re: Causality

  • From: "Gary Otonari" <garyo@xxxxxxxxxxxx>
  • To: "'Jennifer Maharani'" <jennifer.maharani@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
  • Date: Thu, 14 May 2009 13:52:12 -0700

Jennifer -- Do you have ADS?  It might help you.  Here is some material on
recent advances in their transient simulator.  The 1st link is for a paper
we (GigaTest) did for the SI Seminar Series last year.  The 2nd is a webinar
on the same topic ( I think delivered by Sanjeev Gupta of Agilent).  Good
luck.
 
-- Gary Otonari

http://www.home.agilent.com/upload/cmc_upload/All/Meas_Based_Transient_Simul
ation_Gigatest.pdf

http://www.home.agilent.com/agilent/editorial.jspx?cc=US&lc=eng&ckey=1454262
&nid=-34511.0.00&id=1454262



-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Jennifer Maharani
Sent: Thursday, May 14, 2009 12:49 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Causality

Dear all,

I have non-passive non-causal S-parameter. I can use some commercial  
tools that can generate broadband spice with passivity enforcement.  
Not with causality enforcement, though.

In transient simulation it clearly shows non-causal response.

Does anybody know how to resolve this issue? Quick and dirty solution  
will also be appreciated.

Many thanks. 
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