2-4 S-Parameter Measurements Verification Vector Network Analyzer Performance Verification
2-6 PN: 10580-00307 Rev. D MS20xxC MM
2-4 S-Parameter Measurements Verification
The following test verifies S-parameter measurement capabilities of the VNA Master, calibration tees, test
port cable, and any required adapters as a system by analyzing the measurement of artifacts that are traceable
to national standards laboratories. The procedures are automated by selecting the S-parameter Measurement
Verification Test in the VNA Master Verification software, which is supplied with each SC7858 or SC7859
Verification Kit.
The VNA Master Verification software guides you to perform a full 12 Term calibration on the VNA Master by
using the appropriate calibration tees, to measure the S-parameters of the impedance transfer standards in
the verification kit, and to verify that the measured values are within the specified measurement uncertainty
limits.
The impedance transfer standards that are contained in the verification kit are:
• 20 dB Attenuation Standard
• 50 dB Attenuation Standard
• 50 ohm Air Line Standard
• 25 ohm Mismatch (Beatty) Standard
The devices in the verification kit are selected based on their ability to stress the envelope of possible
measurement parameters while still providing a very stable and repeatable behavior. The key attribute of the
devices is that of long term stability.
The quality of the verification result is dependent on the degree of care taken by the user in maintaining,
calibrating, and using the system. The most critical factors are:
• The stability and quality of the devices in the calibration tee and the verification kit.
• The condition of the VNA test port connectors and test port cables.
• The pin depths of all connectors.
• The proper torquing of connections.
Equipment Required
• Calibration Tee, N male, Anritsu Model OSLN50
• Calibration Tee, N female, Anritsu Model OSLNF50
• RF Coaxial Cable, Anritsu Model 3670NN50-2
• N Connector Verification Kit, Anritsu Model SC7858
• 3/4 inch and 12 lbf·in (1.35 N·m). Open End Torque Wrench, Anritsu 01-200
• Calibration Tee, K male, Anritsu Model OSLK50 (for units with Option 11)
• Calibration Tee, K female, Anritsu Model OSLKF50 (for units with Option 11)
• RF Coaxial Cable, Anritsu Model 3670K50-2 (for units with Option 11)
• Adapter, Anritsu Model 33KK50B (for units with Option 11)
• K Connector Verification Kit, Anritsu Model SC7859 (for units with Option 11)
• 5/16 inch and 8 lbf·in (0.9 N·m). Open End Torque Wrench, Anritsu 01-201 (for units with Option 11)
• Personal Computer with Microsoft Windows XP Operating System, USB port, Ethernet interface, and
National Instruments VISA software version 4.4.1 or later
Caution The use of non-Anritsu calibration tees or verification kits is not supported.
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