Agilent Technologies E5071C Manual page 253

E5071C
1. Press the Save button (8 in menu) to open the Save screen.
2. Press the Save button to specify a name for the characteristic data of
the calibration mixer with IF filter. Then save it to a Touchstone file.
If you check the Setup Option (9 in menu), the saved characteristic
data will be set for the specified port of the active channel as the
characteristic data file of the network de-embedding, and the fixture
simulator function will be enabled. If unchecked, only the
characteristic data will be saved.
3. Click the Close button (10 in menu) to exit the macro.
Characterizing Calibration Mixer (with IF filter) for Balance Mixer Measurement
The VBA macro (Vector Mixer Characterization) provided with the E5071C
allows you to characterize the calibration mixer (with IF filter) to be used
for the balanced mixer measurement. The characterizing procedures of the
calibration mixer with IF filter used for balance mixer measurement are
basically the same as those used for normal mixer measurement; however,
two characteristic data of the calibration mixer with IF filter are required
for balanced mixer measurement, as shown in the following figure.
Connect the target calibration mixer (with IF filter) to the port of the
network analyzer on which calibration has been performed and then
connect the OPEN, SHORT and LOAD standards to the end of the IF filter to
start reflection measurement and characterization. For a balanced mixers,
the phase difference of the LO signals between the calibration mixers with
IF filter will remain as an error, since each calibration mixer with IF filter is
characterized independently. Therefore, you must calibrate the phase
difference between the two characterized calibration mixers with IF filters.
Characteristics evaluation of calibration mixer (with IF filter) for
balance mixer
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