[SI-LIST] Re: Causality
- From: "Aubrey Sparkman" <asparkman@xxxxxxxxxxxxx>
- To: "'Scott McMorrow'" <scott@xxxxxxxxxxxxx>, "'Jennifer Maharani'" <jennifer.maharani@xxxxxxxxx>
- Date: Thu, 14 May 2009 17:00:00 -0500
Jennifer,
Simbor is a good tool to regenerate the model from the physical structures.
If you don't have that option, you could try
Aubrey Sparkman
Aubrey.K.Sparkman@xxxxxxxx
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Scott McMorrow
Sent: Thursday, May 14, 2009 4:22 PM
To: Jennifer Maharani
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Causality
Jennifer
If you tried other passivity/causality enforcement fitters, you might want
to try Simbeor from Simberian. The rational macro-models that the software
creates are causal.
Jennifer Maharani wrote:
> Many thanks Gary. I have used the broadband spice generator from
> Agilent. It does not fix the causality problem.
>
> On May 14, 2009, at 10:52 PM, "Gary Otonari" <garyo@xxxxxxxxxxxx> wrote:
>
>
>> Jennifer -- Do yo 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_Transien
>> t_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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