[SI-LIST] Re: Causality
- From: Jennifer Maharani <jennifer.maharani@xxxxxxxxx>
- To: "<colin_warwick@xxxxxxxxxxx>" <colin_warwick@xxxxxxxxxxx>
- Date: Mon, 18 May 2009 13:29:51 +0200
Hi Colin,
I run my transient simulation in Cadence environment. I have too many
things to transfer to different environment, not to mention all the
transistor level models that I am using.
The solution would be to generate a model that I can use in my Cadence
env.
Please correct me if I am wrong, so the only solution that Agilent has
to offer under this circumstances is the broadband spice generator.
Many thanks.
On May 16, 2009, at 2:09 AM, <colin_warwick@xxxxxxxxxxx> wrote:
> Hi Jennifer,
> I'm wondering if you'd tried ADS Transient Convolution simulator?
> Our Broadband SPICE Model Generator uses a rational function approach:
>
> B. Gustavsen and A. Semlyen, "Rational approximation of frequency
> domain responses by vector fitting," IEEE Trans. Power Delivery,
> Vol. 14, No. 3, pp. 1052-1061, July 1999.
>
>
> ...which can yield an excellent model in certain circumstance.
> However, ADS Transient Convolution has a more general approach:
>
> http://cp.literature.agilent.com/litweb/pdf/5990-3571EN.pdf
>
> I was wondering if you'd had the opportunity to evaluate it?
>
> Best regards,
>
> -- Colin
>
>
>
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx
> ] On Behalf Of Jennifer Maharani
> Sent: Thursday, May 14, 2009 5:02 PM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Re: Causality
>
> 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 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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