85 SNA5000A Vector Network Analyzer User Manual
When the frequency range in the S2P file of the imported matching module is less
than the frequency range set by the current interface, such as when the
Enable
Extrapolation
item is not checked, the system will extrapolate the S2P file by default.
In other words, all the uncovered low-frequency parameters are replaced by the first point
in the S2P file, and all the uncovered high-frequency parameters are replaced by the last
point in the S2P file, making the frequency range of the S2P file the same as the
frequency range of the current interface.
If you check the
Enable Extrapolation
tab, the system will interpolate the frequency
points not covered by S2P so that the frequency range of the S2P file is the same as that
of the current interface.
4. Click
Close
to complete the setting and click
Apply Fixtures
to ON to take effect.
Figure 3-34 De-embedding interface
Differential port match operation steps:
1. Ensure that the user has completed the S parameter calibration and obtained the balance
S parameters of the DUT.
2. Select
Cal
→
Fixtures
→
Fixture Setup
→
Differential Port Match
to enter the Settings
screen.
3. By selecting the port and the parameter representation form of the matching module, the
S2P file of the matching module can be directly imported or the circuit model of the
matching module can be used.
Summary of Contents for SNA5000A Series
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