eldo_user

Working with S, Y, Z Parameters
S, Y, Z Parameter Extraction
S Parameter Extraction
.PLOT AC SR(i, j)
.PRINT AC SI(i, j)
.PRINT AC SM(i, j)
.PLOT AC SDB(i, j)
.PRINT AC SP(i, j)
.PRINT AC SGD(i, j)
Mixed-Mode S Parameter Extraction
Mixed-mode S parameters can be extracted using the following syntax:
S[mn]TYPE(i,j)
TYPE can be one of the following:
R Real partM MagnitudeI Imaginary partDB Magnitude (dB)P PhaseGD Group Delay
mn specifies the mode of ports i and j respectively, can be one of the following:
cc common-commondd differential-differentialdc differential-commoncd commondifferentialsc
single-commonsd single-differentialcs common-singleds different-singless
single-single. Default.
The default mixed-mode for S parameter extraction is single-single. If no mixed extension is
specified on the output the default will change depending on how ports 1 and 2 are setup. The
default rule is shown in Table 14-1.
Table 14-1. Mixed-Mode S Parameter Extraction Default Rule
Port 1 Port 2 Default Available quantities
Single Single SS S[ss](1,1)
S[ss](1,2)
S[ss](2,1)
S[ss](2,2)
Single Balanced SD Sss(1,1)
Ssd(1,2) Ssc(1,2)
Sds(2,1) Scs(2,1)
Sdd(2,2) Sdc(2,2) Scd(2,2) Scc(2,2)
Balanced Balanced DD Sdd(1,1) Sdc(1,1) Scd(1,1) Scc(1,1)
Sdd(1,2) Sdc(1,2) Scd(1,2) Scc(1,2)
Sdd(2,1) Sdc(2,1) Scd(2,1) Scc(2,1)
Sdd(2,2) Sdc(2,2) Scd(2,2) Scc(2,2)
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Eldo® User's Manual, 15.3