Radar uses electromagnetic waves, which are alternating electromagnetic fields and propagate in free space. The alternating frequency of this electromagnetic field determines the basic characteristics of radar. The radio used in AM and FM broadcasting is in the frequency band below 300GHz, while the microwave frequency band is the main frequency band used in communication and radar, and the frequency band of 30-300GHz is called millimeter wave.
Compared with infrared, laser, television and other optical seekers, millimeter wave seeker has a strong ability to penetrate fog, smoke and dust, and has the characteristics of all-weather (except rainy days). In addition, millimeter wave seeker is superior to other microwave seekers in absolute accuracy, directivity and stability.
Sensor comparison
Combining radar with millimeter wave, millimeter wave radar becomes a magical solar Sheng Da. Smart office, smart home, smart home appliances, amusement equipment, smart lighting, smart bathroom, transportation, security and nursing can all see the powerful skills of millimeter wave radar.