Creating De-Embedding S-Parameters - Teledyne T3SP Series Operator's Manual

Please note: the de-embedding parameters are not saved in sqc files, con-
sequently it is recommended to use the mas file format whenever applying
the de-embedding functionality.
The performance and accuracy of the de-embedding algorithm depends on
the quality of the underlying S-parameters of the fixtures. Please find below
some recommendations to achieve the best possible results:
•
Required: make sure the upper cut-off frequency is greater than or
equal to the cut-off frequency of your TDR-device.
•
Required: make sure the lower cut-off frequency is less than or equal
to the frequency given by the formula
the number of points and
be found in the Oscilloscope Window (see section 2.5.2).
•
Recommended: better results can be obtained if the frequency incre-
ment is equal or less than

7.3 Creating De-Embedding S-Parameters

Please note: the full 2-port measurement mode according to section
to use this functionality.
The Seunis software basically can be used to measure 2-port S-parameters
and is therefore suitable to characterize fixtures as discussed in section 7.1.
A typical use case is to calibrate the instrument at the end of the coaxial ca-
bles where interchangeable components are connected between cable and
DUT. The prerequisite is the fixtures to be characterized can be connected
to the 12TC-calibrated TDR-system (most likely via SMA-connectors).
To create the S-parameter set for de-embedding according to the require-
ments and recommendations stated in section
ceed as follows:
T3SP-Series Operator's Manual
= (
the sampling time. Both parameters can
.
7.2 it is recommended to pro-
1
, where is
)
5.3 is required
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