Anritsu 37 D Series, Maintenance Manual

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Coupler High Frequency Test (Waveguide—WR10):
Step 1. Reconnect the 3742A-EW mmWave modules to the system
and set the Test Set Configuration to the 3742A-EW Milli-
meter (or Broadband) mode.
Step 2. Set the VNA as shown below.
Key Menu Choice
SETUP MENU Start: 65 GHz
Stop: 110 GHz
CHANNEL MENU Single Channel:
Channel 3
GRAPH TYPE Log Magnitude
SET SCALE Resolution: 10 dB/division
Reference Value: 0 dB
Reference Line: 8
S-PARAMS S21
Step 3. Use the WR-10 Waveguide Calibration Kit to perform a
12-Term Broadband Load calibration.
Step 4. Connect coupler pair between the two mmWave modules.
The V(f) connectors of the couplers need to be terminated
with the 28V50B terminations from the 3654B Calibration
Kit.
Step 5. Verify that the insertion loss is less than 20 dB and there
are no sharp discontinuities.
MULTIPLEXING COUPLER CHECK APPENDIX D
D-22 37XXXD MM