[ibis-interconn] Sparse Touchstone Proposal, with some more thought pu into it
- From: "Walter Katz" <wkatz@xxxxxxxxxx>
- To: "IBIS-Interconnect" <ibis-interconn@xxxxxxxxxxxxx>
- Date: Sat, 18 Jul 2009 21:32:12 -0400
All,
I think we can all agree that an Sij (imaginary number as a list of sampled
frequencies) is a numerical approximation of a Transfer Function. I would
like to name this a "Framis".
Here is a BNF an enhancements to Touchstone to handle Sparse Matrix data
that should satisfy all of the issues raise in the past several meetings.
[Number of Unique Framis's] <number of unique framis's>
{Framis Names]
1 <framis name>
2 <framis name>
.
<number of unique framis's> <frames name>
{End Framis Names]
[Sparse Framis Data]
<frames name> : (<row,column>) (<row,column>) (<row,column>) (<row,column>)
.
<frames name> : (<row,column>) (<row,column>) (<row,column>) (<row,column>)
.
(<row,column>) (<row,column>) (<row,column>)
(<row,column>) .
< frames name> : (<row,column>) (<row,column>) (<row,column>) (<row,column>)
.
[End Sparse Framis Data]
The actual network data will have at each frequency <number of unique
framis's> imaginary numbers.
[Framis Names] section is optional, the default <framis name> of any Framis
is its' <framis number>. A <framis name> can consists of any legal IBIS
character, except ":" is not allowed as a Framis name.
Walter
Walter Katz
Chief Scientist
Signal Integrity Software, Inc.
wkatz@xxxxxxxxxx
303.449-2308
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