User Guide

5.8Ghz low power radar sensor
Radar sensor
Version 1.0
Page 8
Detection Pattern
The sensing sensitivity of the radar sensor can be configured by adjusting the resistance, and its
limit sensing distance is 6~8 meters, and the actual sensing distance can be adjusted appropriately
according to needs.The following is the schematic diagram of radar detection range in case of
high hanging. If the sensitivity is set higher, the detection range will be correspondingly larger.
In the figure, the dark area is the high sensitivity area, which can be fully detected, while the
light area is the low sensitivity detection area, which can basically detect objects.
Figure7 AT58L4MD-2020 Detection
Pattern
Precautions
 During installation, the front of the antenna shall be free of metal shell or parts to avoid signal
shielding. Plastic or glass and other materials are allowed, but these materials shall not be
close to the front of the antenna.
 Try to avoid pointing the radar antenna at the large metal equipment or pipeline, etc；
 When multiple radar modules are installed, the antennas of each radar module shall be parallel
to each other as much as possible to avoid direct radiation between the antennas, and the
distance between the modules shall be more than 1m；
 The radar sensor should avoid facing the AC driving power supply and keep away from the
rectifier bridge of the driving power supply as far as possible to avoid the interference of the
power frequency.