[SI-LIST] Re: S-parameter for differential signals in Hspice
- From: "Bill Beale" <beale@xxxxxxxxxxxxxx>
- To: <whizplayer@xxxxxxxxx>, "si_list" <si-list@xxxxxxxxxxxxx>
- Date: Thu, 13 Feb 2003 16:34:23 -0800
Hi Bob,
The way I've done it is to get the single ended S-parameters and use =
MatLab to post-process the single ended data to get the mixed mode =
S-parameters.
Essentially, have matlab do the linear transform.
There may be ways to setup the sources to get just the quadrant you're =
interested in directly, but you always loose all the other information, =
i.e. the cross mode coupling and the even mode.
Hope this helps,
Bill
> -----Original Message-----
> From: Bob Patel [mailto:whizplayer@xxxxxxxxx]
> Sent: Thursday, February 13, 2003 4:28 PM
> To: si_list
> Subject: [SI-LIST] S-parameter for differential signals in Hspice
>=20
>=20
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> Hi! I know how to get S-parameters for single ended
> traces in Hspice but how do I get S-parameter for
> differential signals in Hspice.
> I am looking for the correct syntax. Do I use inverted
> source for the other trace?
> Thanks
> Bob
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