Chapter 3 — Performance Verification
3-6 Directivity and Test Port Match Verification
MN469xC Series Multiport Test Set MM
PN: 10410-00730 Rev. D
3-7
3-6
Directivity and Test Port Match Verification
The following test can be used to verify the corrected directivity and port match of each test port of the
VectorStar Multiport VNA System.
Equipment Required for VNA System with MN4694C
•
Calibration Kit, K Connector, Anritsu Model 3652A
•
Phase Equal Adapter, K(m) to K(f) Anritsu Model 33KKF50B (Qty 2; in addition to the two adapters in
3652A)
•
Air Line, K Connector, Anritsu Model SC7760
•
20 dB Offset Termination, K(f) Connector, Anritsu Model SC4808 or SC7888
Equipment Required for VNA System with MN4697C
•
Calibration Kit, V Connector, Anritsu Model 3654D
•
Phase Equal Adapter, V(m) to V(f) Anritsu Model 33VVF50C (Qty 2; in addition to the two adapters in
3654D)
•
Air Line, V Connector, Anritsu Model T2025-2
•
20 dB Offset Termination, V(f) Connector, Anritsu Model SC5727
Procedure
15.
Install the MS464xA/B VNA on the MN469xC Test Set per the
VectorStar MN469xC Multiport Test Set
Installation Guide – 10410-00737
. Power on the MN469xC Test Set first.
16.
Install four Phase Equal Adapters on the two MN469xC test ports and on the two VNA test ports.
17.
Power on the MN469xC Test Set.
18.
Power on the MS464xA/B VNA and allow it to complete self test.
19.
Allow both VNA and Test Set to warm up for at least one hour.
20.
Preset the VNA.
a.
Ensure that Trace 1 is set to S11, Trace 2 set to S12, Trace 3 set to S21, and Trace 4 set to S22.
21.
Select
Sweep Setup
|
Freq-based Seg. Sweep Setup
22.
When the Freq-based Seg. Sweep Setup Table appears on the bottom of the display, do the following:
a.
Enter the information into the Setup Table on the bottom of the VNA display per
for MN4694C or
for MN4697C.
b.
Omit the frequency bands that are outside of the frequency coverage of the 2-port VectorStar VNA.
c.
Select
Add
to add a new segment.
Note
Use the Anritsu 01-204 Torque Wrench to tighten the adapters to the MN469xC test ports so they will
not loosen during the calibration steps and adversely affect the calibration quality.
Note
If the VNA is powered up before the test set, the VNA application will stay in 2-port mode and only
2-port mode features and functions will be available.