From: Scott McMorrow (firstname.lastname@example.org)
Date: Mon May 21 2001 - 15:45:54 PDT
SpectraQuest does not use analytical formulas. It uses
a numerical field solver to calculate RLGC matrices, from
which characteristic impedance and propagation delay
are calculated from. It uses the Boundary Element Method
which is quite fast and reasonably accurate for most
If you go to the SpectraQuest help dialog and search
for "field solver" you will find a bit more information.
"Wang, Brian" wrote:
> I'd like to know what analytical formulas used in SpecctraQuest
> to have characteristci impedance and propagation delay.
> Welcome to advice on this issue. Thanks.
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-- Scott McMorrow Principal Engineer SiQual, Signal Quality Engineering 18735 SW Boones Ferry Road Tualatin, OR 97062-3090 (503) 885-1231 http://www.siqual.com
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