Description
The sensor which uses millimeter waves is known as a millimeter-wave radar sensor. Generally, millimeter waves have a 30 to 300 GHz frequency domain. Among them, 77Ghz & 24Ghz radar sensors are used in automobiles for collision avoidance. The millimeter-wave wavelength ranges in between centimeter wave & lightwave. The advantages of millimeter-wave are photoelectric guidance and microwave guidance.
Millimeter-wave radar has many characteristics as compared to centimeter wave radar-like spatial resolution is high, simple integration, and small size. As compared to optical sensors like lasers, infrared, cameras, this sensor has a strong capacity to penetrate smoke, dust, fog & anti-interference capacity. These radar sensors are used in security, automotive electrons, intelligent transportation, and drones.
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