[ibis-interconn] Sparse Touchstone Proposal
- From: "Walter Katz" <wkatz@xxxxxxxxxx>
- To: "IBIS-Interconnect" <ibis-interconn@xxxxxxxxxxxxx>
- Date: Sat, 18 Jul 2009 21:05:49 -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 "Network Function".
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 Network Function] <number of unique network functions>
{Network Function Names]
1 <network function name>
2 <network function name>
.
<number of unique network functions> <network function name>
{End Network Function Names]
[Sparse Network Function Data]
<network function name> : (<row,column>) (<row,column>) (<row,column>)
(<row,column>) .
<network function name> : (<row,column>) (<row,column>) (<row,column>)
(<row,column>) .
(<row,column>) (<row,column>) (<row,column>) (<row,column>) .
<network function name> : (<row,column>) (<row,column>) (<row,column>)
(<row,column>) .
[End Sparse Network Function Data]
The actual network data will have at each frequency <number> imaginary
numbers.
{Network Function Names] section is optional, the default <network function
name> of any Network Function is its' <network function number>. A <network
function name> must start with a letter [a-Z], and may only contain [a-Z],
[0-9], and _.
Walter
Walter Katz
Chief Scientist
Signal Integrity Software, Inc.
wkatz@xxxxxxxxxx
303.449-2308
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