[SI-LIST] Re: Zodd Differential Calculation for Hspice w-element
- From: "Bill Beale" <beale@xxxxxxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Fri, 8 Aug 2003 10:40:06 -0700
>=20
> Bill,
>=20
> Is our assumption C11 =3D 1.00e-10 correct for the
> Maxwellian matrix of hspice ?
Yes. On Page 18-21 of Star-Hspice Manual, Release 2001.2 states: RLGC =
matrices in the W Element's RLGC file are in the Maxwelliam format.
Thank you,
Bill
>=20
> Vikas
>=20
>=20
> --- Bill Beale <beale@xxxxxxxxxxxxxx> wrote:
> > Hi Vikas,
> >=20
> > Lodd =3D3D L11 - L12
> > Codd =3D3D C11 - C12
> >=20
> > Putting the numbers in:
> >=20
> > Lodd =3D3D 4.00e-7 - 1.00e-7 =3D3D 3.00e-7
> > Codd =3D3D 1.00e-10 - (-3.00e-11) =3D3D 1.30e-10
> >=20
> > Zodd =3D3D sqrt(Lodd/Codd)
> > =3D3D sqrt(3.00e-7/1.3e-10)
> > =3D3D 48.04
> >=20
> > Yes, you need the maxwell matrices for both
> > capacitance and inductance.
> >=20
> > Thank you,
> > Bill
> >=20
> > P.S. The first two equations assume a symmetric
> > matrix.
> >=20
> >
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > Bill Beale Phone: 503-439-3462
> > Sr. System App. Engineer Fax: 503-477-9472
> > Accelerant Networks e-mail:=20
> > bill_beale@xxxxxxxxxxxxxx
> > On the world wide web @ http://www.accelerant.net
> >
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > >=3D20
> > >=3D20
> > > I have following Hspice w- element file for a pair
> > of
> > > differential Stripline=3D20
> > >=3D20
> > > .MODEL diff_pair W MODELTYPE=3D3DRLGC, N=3D3D2
> > >=3D20
> > > + Lo =3D3D 4.00e-007
> > > + 1.00e-007 4.00e-007
> > >=3D20
> > > + Co =3D3D 1.00e-010
> > > + -3.00e-011 1.00e-010
> > >=3D20
> > > Ignoring Rs , Gd etc. can someone tell me what
> > > exactly is the Zodd ( differential ). I assume it
> > will
> > > be=3D20
> > >=3D20
> > > Zodd(diff)=3D3D 2*sqrt((4.0e-7 -1.0e-7)/(1.0e-10
> > > +3.0e-11))
> > > =3D3D 96 Ohm
> > >=3D20
> > > What will be single Ended Impedence ?
> > >=3D20
> > > Z ( se ) =3D3D Sqrt (4.00e-007 / 1.00e-010 ) =3D3D 61
> > Ohm
> > >=3D20
> > > I am not sure if the Maxwellian "C" for single
> > ended
> > > calculation should be taken as=3D20
> > >=3D20
> > > 1. C =3D3D 00e-010 or
> > > 2. C =3D3D 1.00e-010 - 3.00e-011=3D20
> > >=3D20
> > > Thanks
> > >=3D20
> > > Vikas
> > >=3D20
> > >=3D20
> > > =3D20
> > > =3D20
> > >=3D20
> > > __________________________________
> > > Do you Yahoo!?
> > > Yahoo! SiteBuilder - Free, easy-to-use web site
> > design software
> > > http://sitebuilder.yahoo.com
> > >
> >
> ------------------------------------------------------------------
> > > To unsubscribe from si-list:
> > > si-list-request@xxxxxxxxxxxxx with 'unsubscribe'
> > in the Subject field
> > >=3D20
> > > or to administer your membership from a web page,
> > go to:
> > > //www.freelists.org/webpage/si-list
> > >=3D20
> > > For help:
> > > si-list-request@xxxxxxxxxxxxx with 'help' in the
> > Subject field
> > >=3D20
> > > List archives are viewable at: =3D20
> > > //www.freelists.org/archives/si-list
> > > or at our remote archives:
> > > =09
> > http://groups.yahoo.com/group/si-list/messages=3D20
> > > Old (prior to June 6, 2001) list archives are
> > viewable at:
> > > http://www.qsl.net/wb6tpu
> > > =3D20
> > >=3D20
> > >=3D20
> >
> ------------------------------------------------------------------
> > To unsubscribe from si-list:
> > si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in
> > the Subject field
> >=20
> > or to administer your membership from a web page, go
> > to:
> > //www.freelists.org/webpage/si-list
> >=20
> > For help:
> > si-list-request@xxxxxxxxxxxxx with 'help' in the
> > Subject field
> >=20
> > List archives are viewable at: =20
> > //www.freelists.org/archives/si-list
> > or at our remote archives:
> > http://groups.yahoo.com/group/si-list/messages=20
> > Old (prior to June 6, 2001) list archives are
> > viewable at:
> > http://www.qsl.net/wb6tpu
> > =20
> >=20
>=20
>=20
> __________________________________
> Do you Yahoo!?
> Yahoo! SiteBuilder - Free, easy-to-use web site design software
> http://sitebuilder.yahoo.com
> ------------------------------------------------------------------
> To unsubscribe from si-list:
> si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
>=20
> or to administer your membership from a web page, go to:
> //www.freelists.org/webpage/si-list
>=20
> For help:
> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
>=20
> List archives are viewable at: =20
> //www.freelists.org/archives/si-list
> or at our remote archives:
> http://groups.yahoo.com/group/si-list/messages=20
> Old (prior to June 6, 2001) list archives are viewable at:
> http://www.qsl.net/wb6tpu
> =20
>=20
>=20
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
