RE: [SI-LIST] : W-element in HSPICE

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From: Ron Miller (rmiller@Brocade.COM)
Date: Thu Dec 21 2000 - 08:19:01 PST


Hi Michael

Point by point answers
> Ron,
>
> I've heard of the HP ADS tool many times but haven't used it.
> How efficient would it be for modeling a path with a cable,
> connectors, vias and other structures in the model?
        [Ron Miller]
        It will do the job efficiently once the models are installed, especially if
        there are no active components.

> What if you wanted to model several parallel paths with coupling between
> the connectors?
        [Ron Miller]
        ADS and MDS have models for this. For many parallel paths as in a multi-pin
        connector in multi rows, the Picosecond Modeling Suite is needed

> What kind of device models can HP ADS accept? Can it model BSIM3
> models or IBIS models for instance?
        [Ron Miller]
        It can use Behavioral/IBIS models, spice models, Measured S-Parameters
        and there are over a hundred transmission line models that only need tthe
        physical dimensions, and dielectric constant and dissipation factor.

> Mike
> _______________________________________________________________
> Mike Degerstrom Email: degerstrom.michael@mayo.edu
> Mayo Clinic
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> Gugg. Bldg. RM 1042A Phone: (507) 284-3292
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> _______________________________________________________________
>
>
> > -----Original Message-----
> > From: Ron Miller [mailto:rmiller@Brocade.COM]
> > Sent: Tuesday, December 19, 2000 10:54 AM
> > To: 'Alex March'; si-list@silab.eng.sun.com
> > Subject: RE: [SI-LIST] : W-element in HSPICE
> >
> >
> > Try HP ADS with Impulse for top of the line. It uses highly
> > accurate frequency domain models, developes complete
> > s-parameters and then convolutes the impulse response
> > of the network against the time domain signal.
> >
> > Nothing better on the planet.
> >
> > Ron Miller
> >
> > > -----Original Message-----
> > > From: Alex March
> > > Sent: Tuesday, December 19, 2000 2:14 AM
> > > To: si-list@silab.eng.sun.com
> > > Subject: [SI-LIST] : W-element in HSPICE
> > >
> > > Hello,
> > >
> > > I have seen a lot of discussions lately on the list
> > > and also in the SI-LIST archives about the HSPICE
> > > W-element accuracy or lack of accuracy.
> > > Therefore I would like to ask for your opinions
> > > about equivalent transmission line from other
> > > simulation tools. So in other tools are there more
> > > accurate models for coupled lossy lines, with
> > > frequency dependant losses, maybe checked against
> > > measured data?
> > >
> > > Thank you,
> > >
> > > Alex
> > >
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