If radiation emitted by the electronics or their susceptibility to external fields is a potential problem, moulded enclosures offer no inherent attenuation to the passage of electromagnetic fields. As a solution, Vero Technologies is offering internal coatings that provide varying levels of attenuation.
The 50-micron nickel coating provides attenuation of 50dB at 1GHz. The default coating is a 10- or 20-micron silver-coated copper particle coating, which typically attenuates by 78dB at 10GHz. The highest attenuation is achieved using a 22.5-micron silver coating, which gives in excess of 80dB at 1.5GHz. It provides an effective shield against RFI and EMI and can act as a ground plane to protect against ESD.
