How to meet the RS radiated immunity standards for power DTUs?

To ensure the DTU's radiated interference immunity (RS) meets standards, enhanced shielding and filtering are necessary. The casing should be made of metal, with conductive pads installed at seams to ensure shielding continuity. External cables should be shielded, with 360-degree termination of the shielding layer. Sensitive circuits on the PCB should be locally shielded. Shielding effectiveness should be analyzed through simulation to optimize the design. In actual testing, RS testing at 3V/m was conducted according to IEC 61000-4-3 standard, with a frequency range of 80MHz-1GHz; the system should exhibit no abnormalities. Compliant RS immunity allows the system to operate normally in environments with radiation from radio stations, radar, etc.