Keysight N2800A User Manual page 79

VNA Setup
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Procedure
1 Calibrate the PNA to the two male 2.92 mm connectors (connectors can be seen in
Figure
As with all precision connector interfaces, make sure to torque all connections using the
CAUTION
proper torque wrench!
2 Prepare the N5439A ZIF probe head for connection to the PV fixture as shown in
Figure 61 N5439A ZIF Probe Head
3 Connect the 1250-1749 adapter and N5443A PV fixture assembly to the calibrated ports of
the PNA as shown in
InfiniiMax III Series Probes User's Guide
Power level: –6 dBm.
Sweep: Log Frequency 50 MHz to 34 GHz, 284 points (100 pts/decade).
IF BW: 1 kHz.
Test port cables and adaptors (if needed) to provide male 2.92 mm connectors at
measurement planes.
Install the BNC 50 ohm terminator to the bias input for port 1 of the VNA (on the rear
panel of E8361 PNA). This provides a DC 50 ohm termination for the probe amp output.
Clear all traces from display, then select S12 to display.
Set scale for S12 to 3 dB/div, with reference level to 0 dB and reference position to 5
divisions.
62) using the N4692A-00F ECal module (or equivalent 2.92 mm cal kit).
Install a N5440A ceramic ZIF tip into the N5439A ZIF probe head. Make sure
a
it is fully inserted.
Bend the tip wires down at their halfway point using fine tweezers.
b
Slightly spread the tips wires to better match the spacing needed for the PV
c
fixture.
Figure 62. A small bench vise is useful to hold PV fixture steady.
Performance Verification
Figure 61.
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