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7 Electrostatic protection
7.1 Electrostatic protection measures
We need take the full electrostatic protection in the radar transport and storage. When handling
discrete modules that are not integrated, it is important to note that when the module is removed
from the sealed antistatic package, it is time to start with electrostatic protection. Never touch or
grab the radar antenna surface and connector pins, but the corner part.
Recommendation: When handling all radar sensors, please try to wear anti-static gloves.
Wrong methods
：
Use metal foil or some metal parts to wrap the antenna;
Measure the pin directly with a multimeter, causing damage.
Use any type of paint or varnish to spray antenna structure;
wrap antenna with CFK sheet (conductive);
The plastic material is in direct contact with the corroded antenna structure (which has a
higher dielectric constant for the resonant frequency of the patch).
7.2 Identification of electrostatic damages
In general, the following conditions indicate that the module has been subjected to electrostatic
damage:
Radar continuously outputs non-regular targets when there is no target in radar coverage;
When the DC value of the power supply voltage and current is within the normal range, the
output signal cannot be obtained.
8 Frequently asked questions (FAQ)
(1) Q: What about the angular accuracy of NRA24?
A: NRA24 is a 24GHz mmw radar altimeter with 1T1R antenna, which is developed by
Nanoradar. It cannot measure the target angle. For the radar with more than two receiving
antennas, it has the ability to measure the angle. Besides, the more antennas it has, the higher
accuracy of angle resolution it could realize.
(2) Q: What is the height accuracy of NRA24 at a height of 0.5 m?
