Method for measuring active phased-array antenna noise temperature
A phased array antenna, noise temperature technology, applied in transmission monitoring, transmitter monitoring, receiver monitoring, etc., can solve problems such as complex measurement calculations, achieve good measurement repeatability, reduce the impact of measurement results, and be popularized and the effect of applying the value
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[0035] refer to figure 1 and figure 2 , The test system consists of a normal temperature load, a low noise amplifier, a radio frequency test cable, a spectrum analyzer and an active phased array antenna to be tested. By measuring the beam pointing of the active phased array antenna to the sun, the beam pointing of the active phased array antenna away from the sun and the noise power of the normal temperature load, the noise temperature of the active phased array antenna system and the receiver temperature can be calculated. At the equivalent noise temperature, the active phased array antenna noise temperature is calculated.
[0036] attached figure 1 and figure 2 Shown is a schematic diagram of the principle of measuring the noise temperature of an active phased array antenna. In the specific embodiment, the active phased array antenna works in the Ku band, and the working frequency ranges from 12.25 GHz to 12.75 GHz. The test frequency is 12.50GHz, the noise temperatur...
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