Instruction manual
Shenzhen Hi-Link Electronic Co.,Ltd
9 Antenna cover design guide
9.1 Effect of antenna cover on millimeter wave sensor
performance
Radar waves are reflected on the radome boundary
1. The total power radiated or received by the radar is lost
2. The reflected wave enters the receiving channel, affecting the isolation between
the transmitting and receiving channels
3. The reflection may make the antenna's standing wave worse, further affecting the
antenna gain
Radar wave propagation in the medium will occur loss, theoretically the higher the
frequency loss will be greater
The electromagnetic wave will be refracted to a certain degree when passing
through the medium
1. Affect the radiation direction map of the antenna, which in turn affects the
coverage of the sensor
9.2 Antenna cover design principles
Structural shape of the antenna cover
Smooth and flat surface, uniform thickness.Such as flat or spherical surface, not
uneven
If there is surface coating, it cannot contain metal or conductive material
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