[SI-LIST] AW: FastHenry .external and .equiv

From: "Neibig Uwe (GS/EDK) *" <Uwe.Neibig@xxxxxxxxxxxx>
To: "'andyk@xxxxxxxxxx'" <andyk@xxxxxxxxxx>,"'si-list@xxxxxxxxxxxxx'" <si-list@xxxxxxxxxxxxx>
Date: Mon, 8 Sep 2003 09:55:14 +0200

Andy,

no need for the .equiv keyword here. Just specify the nodes of
the conductors whose impedance you would like to=20
calculate as terminal pairs i.e. in your example:

.external a b
.external c d
.external e f

This will give you a 3 x 3 complex matrix.=20

Refer to the example "vias.inp" delivered within the Fasthenry-3.0 =
files.

Regards,

Uwe

-----Urspr=FCngliche Nachricht-----
Von: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]Im Auftrag von Andy Kuo
Gesendet: Freitag, 5. September 2003 22:38
An: si-list@xxxxxxxxxxxxx
Betreff: [SI-LIST] FastHenry .external and .equiv


Hi All:

I am trying to simulate a 3 conductor wire environment and extract the
inductance matrix using fasthenry.  I am supposed to have a symmetrical =
and
non-negative matrix.  However, I am unable to do that.  I might have
mis-used .equiv and .external command.

Suppose these are the end points of each of my conductor:
   conductor 1:  A, B
   conductor 2:  C, D
   conductor 3:  E, F
And they lie in parallel.

Right now I have the following in my fastHenry code:

.external A C
.equiv B D
.external C E
.equiv D F
.external A E
.equiv B F

I might have did something wrong with my setup.  Anyone have an idea?

Thanks in advance for your help

Best Regards,
Andy Kuo

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[SI-LIST] AW: FastHenry .external and .equiv

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