How can the radiation from a power DTU antenna be balanced with EMC?

To balance DTU antenna radiation performance and EMC, proper antenna placement and filtering are essential. The antenna should be kept away from metal objects, maintaining a 1/4 wavelength distance. Shielded cables should be used for RF lines, with the shield grounded. A PBZ1608A-102Z0T ferrite bead should be connected in series at the antenna port to suppress common-mode radiation. On the PCB, there should be clearance below the antenna area, and ground plane should be installed around it. The antenna radiation pattern should be optimized through simulation to ensure the main lobe points in the desired direction. During testing, radiated emissions met EN55032 Class B, while receiver sensitivity complied with module specifications. This balanced design ensures that wireless communication performance and EMC standards are met.