Performance Verification
3-6 ME7838A/E System Verification Procedure—Waveguide Millimeter-Wave
VectorStar ME7838 Series MM
PN: 10410-00306 Rev. F
3-13
99.
Use the following formula to calculate the source match:
For ripple with a negative trough
Source Match = X dB Below Reference value
|Mkr 2 value|
|Ref
X value|
For ripple with a positive peak
Source Match = X dB Below Reference value
|Mkr 2 value|
|Ref + X value|
100.
Record the calculated Source Match value into Port 1 Measured column of
.
101.
Disconnect the Flann precision waveguide section with the mounted flush short from Port 1 module.
Port 2 Source Match Verification:
102.
Install the Flann precision waveguide section with the mounted flush short to Port 2 module.
103.
Select
Trace
|
Next Trace
until the VNA displays the S
22
.
104.
Select
Display
|
Trace Format
|
Log Mag
.
105.
Repeat Step 91 to Step 99.
106.
Record the calculated Source Match value into Port 2 Measured column of
.
Port 2 Directivity Verification:
107.
Remove the flush short from the Flann precision waveguide section.
108.
Repeat Step 79 to Step 88.
109.
Record the calculated Directivity value into Port 2 Measured column of
Summary of Contents for VectorStar ME7838 Series
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