Figure 4. Reference Antenna Components
1
2
3
4
1. Reference Antenna
2. Calibration Laser (DFF Chamber Only)
3. Reference Antenna Fixture
4. Positioner
2.
Connect the opposite end of the 2.4 mm (m)-to-2.4 mm (m) cable connected to the
interior chamber rear bulkhead 1A port to the reference antenna port.
Note
The second 2.4 mm (m)-to-2.4 mm (m) cable connected to the interior
chamber rear bulkhead 2A port is utilized during system calibration. Use this
cable if your DUT has two input ports.
3.
Set the
Elevation
in the mmWave OTA Validation Positioner Control Panel to rotate the
positioner so the reference antenna points straight up toward the measurement antenna, as
shown in the previous figure.
Related Information
on page 26
mmWave OTA Validation Positioner Control Panel
on page 35
on page 11
DFF Chamber Internal Connections
You must attach the measurement antenna and perform antenna alignment before you
complete system calibration on the DFF chamber.
Attaching the Measurement Antenna
DFF
Content applies to the DFF chamber.
1.
Mount the measurement antenna to the measurement antenna fixture as shown in the
following figure.
mmWave OTA Validation Test Reference Architecture
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© National Instruments Corporation
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