[SI-LIST] Re: Coplanar differential signals
- From: "Nirmal Sharma" <nsharma@xxxxxxxxxxxx>
- To: <levinpa@xxxxxxxxxxxxx>, <mroczkj@xxxxxxxxxxx>
- Date: Mon, 20 Jan 2003 14:55:49 -0800
Hello Jason;
You might want to try polar instruments www.polarinstruments.com
You can down load SI600 calulatr that has different coplaner differntial =
structures built in. You can change the Sgnal- Ground gap and get the=20
impedence you are looking for.=20
Thanks=20
Nirmal
-----Original Message-----
From: Paul Levin [mailto:levinpa@xxxxxxxxxxxxx]
Sent: Monday, January 20, 2003 2:08 PM
To: mroczkj@xxxxxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Coplanar differential signals
Dear Jason,
Take a look at Brian C. Wadell's "Transmission Line Design Handbook."
He has formulas for these lines.
Regards,
Paul
__________________
Mroczkowski, Jason wrote:
> I am just beginning to delve into the world of differential signals =
and I
> have come upon an obstacle. I can find a multitude of info on =
microstrip and
> stripline differential signals but nothing about the theory behind =
coplanar
> differential signals. Specifically, I am looking for the impedance as =
it
> relates to the signal-ground gap. When designing a coplanar =
differential
> signal how is the impedance calculated? Are there any freebee =
software
> packages that calculate the impedance of a coplanar differential =
signal.
> Thanks for the input.
>=20
> Jason G. Mroczkowski
> Everett Charles Technologies
> 4837 White Bear Parkway
> St. Paul, MN 55110
> Phone: 651-407-7777
> Fax: 651-407-7290
>=20
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>=20
>=20
--=20
Paul Levin
Senior Principal Engineer
Logic Innovations, a Xyratex company
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