National Instruments mmWave OTA, Руководство пользователя

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Figure 5. Measurement Antenna Components
V
1
2
4
3
5 6
1. Measurement Antenna Fixture
2. Alignment Knob
3. Alignment Knob 4. Measurement Antenna
5. 1.85 mm (m)-to-1.85 mm (m) Cable, 8 in.
6. 1.85 mm (m)-to-1.85 mm (m) Cable, 8 in.
2. Connect one end of two 1.85 mm (m)-to-1.85 mm (m) cables to the interior chamber top
bulkhead 1A and 2A ports.
3. Connect the opposite end of the cable connected to the interior chamber top bulkhead 1A
port to port H on the antenna.
4. Connect the opposite end of the cable connected to the interior chamber top bulkhead 2A
port to port V on the antenna.
Aligning the Reference and Measurement Antennas
DFF
Content applies to the DFF chamber.
Antenna alignment improves the repeatability and accuracy of your test. The reference antenna
data assumes that the antennas are perfectly aligned, so alignment must be performed for each
antenna setup.
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