[ibis-interconn] I have been using this to explain Touchstone 2 and Sparse Touchstone 2 to our customers and model vendors
- From: "Walter Katz" <wkatz@xxxxxxxxxx>
- To: "IBIS-Interconnect" <ibis-interconn@xxxxxxxxxxxxx>
- Date: Fri, 9 Oct 2009 12:44:55 -0400
All,
I have been using this to explain Touchstone 2 and Sparse Touchstone 2 to
customers and model vendors who are interested in converting Touchstone 1 to
Touchstone 2 and Sparse Touchstone 2 files.
Walter
This is a simple example of how an s4p transitions:
* Touchstone 1.0 s4p
16 matrix elements
* Touchstone 2.0 s4p
16 matrix elements
* Touchstone 2.0 s4p Upper Format 10 matrix
elements
* Touchstone 2.1 s4p Sparse No Symmetry 16 matrix
elements
* Touchstone 2.1 s4p Sparse Upper Format 10 matrix
elements
* Touchstone 2.1 s4p Sparse Coupled Wline 4 matrix
elements
* Touchstone 2.1 s4p Sparse Uncoupled Wline 2 matrix elements
Walter
Touchstone 1.0 (Sij are a pair of numbers).
# GHZ S MA R 50
f_1 s11 s12 s13 s14 s21 s22 s23 s24 s31 s32 s33 s34 s41 s42 s43 s44
f_2 s11 s12 s13 s14 s21 s22 s23 s24 s31 s32 s33 s34 s41 s42 s43 s44
f_3 s11 s12 s13 s14 s21 s22 s23 s24 s31 s32 s33 s34 s41 s42 s43 s44
?
f_N s11 s12 s13 s14 s21 s22 s23 s24 s31 s32 s33 s34 s41 s42 s43 s44
Touchstone 2.0:
[Version] 2.0
# GHZ S MA R 50
[Number of Ports] 4
[Number of Frequencies] N
[Network Data]
f_1 s11 s12 s13 s14 s21 s22 s23 s24 s31 s32 s33 s34 s41 s42 s43 s44
f_2 s11 s12 s13 s14 s21 s22 s23 s24 s31 s32 s33 s34 s41 s42 s43 s44
f_3 s11 s12 s13 s14 s21 s22 s23 s24 s31 s32 s33 s34 s41 s42 s43 s44
?
f_N s11 s12 s13 s14 s21 s22 s23 s24 s31 s32 s33 s34 s41 s42 s43 s44
Touchstone 2.0 s4p Upper Format
[Version] 2.0
# GHZ S MA R 50
[Number of Ports] 4
[Number of Frequencies] N
[Matrix Format] Upper
[Network Data]
f_1 s11 s12 s13 s14 s22 s23 s24 s33 s34 s44
f_2 s11 s12 s13 s14 s22 s23 s24 s33 s34 s44
f_3 s11 s12 s13 s14 s22 s23 s24 s33 s34 s44
?
f_N s11 s12 s13 s14 s22 s23 s24 s33 s34 s44
Touchstone 2.1 s4p Sparse No Symmetry
[Version] 2.1
# GHZ S MA R 50
[Number of Ports] 4
[Number of Frequencies] N
[Number of Transfer Functions] 16
[Sparse Matrix Mapping]
1: (1,1) 2: (1,2) 3: (1,3) 4: (1,4)
5: (2,1) 6: (2,2) 7: (2,3) 8: (2,4)
9: (3,1) 10: (3,2) 11: (3,3) 12: (3,4)
13: (4,1) 14: (4,2) 15: (4,3) 16: (4,4)
[Network Data] ! n: represent a pair of numbers
f_1 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16:
f_2 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16:
f_3 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16:
?
f_N 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16:
Touchstone 2.1 s4p Sparse Upper Format
[Version] 2.1
# GHZ S MA R 50
[Number of Ports] 4
[Number of Frequencies] N
[Number of Transfer Functions] 10
[Sparse Matrix Mapping]
1: (1,1) 2: (1,2) 3: (1,3) 4: (1,4)
5: (2,2) 6: (2,3) 7: (2,4)
8: (3,3) 9: (3,4)
10: (4,4)
[Network Data] ! n: represent a pair of numbers
f_1 1: 2: 3: 4: 5: 6: 7: 8: 9: 10:
f_2 1: 2: 3: 4: 5: 6: 7: 8: 9: 10:
f_3 1: 2: 3: 4: 5: 6: 7: 8: 9: 10:
?
f_N 1: 2: 3: 4: 5: 6: 7: 8: 9: 10:
Touchstone 2.1 s4p Sparse Coupled Wline
[Version] 2.1
# GHZ S MA R 50
[Number of Ports] 4
[Number of Frequencies] N
[Number of Transfer Functions] 4
[Sparse Matrix Mapping]
1: (1,1) (2,2) (3,3) (4,4)
2: (1,2) (2,1) (3,4) (4,3)
3: (1,3) (3,1) (2,4) (4,2)
4: (1,4) (4,1) (2,3) (3,2)
[Network Data]
f_1 1: 2: 3: 4:
f_2 1: 2: 3: 4:
f_3 1: 2: 3: 4:
?
f_N 1: 2: 3: 4:
Touchstone 2.1 s4p Sparse Uncoupled Wline
[Version] 2.1
# GHZ S MA R 50
[Number of Ports] 4
[Number of Frequencies] N
[Number of Transfer Functions] 2
[Sparse Matrix Mapping]
1: (1,1) (2,2) (3,3) (4,4)
2: (1,2) (2,1) (3,4) (4,3)
[Network Data]
f_1 1: 2:
f_2 1: 2:
f_3 1: 2:
?
f_N 1: 2:
Walter Katz
303.449-2308
Mobile 720.333-110
wkatz@xxxxxxxxxx
www.sisoft.com
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