Circuit & System Protection


Shielded enclosures with RF absorbers for electronics

9 March 2005 Circuit & System Protection

FerriShield offers PCB shielded enclosures that have RF absorbing material. The company has available three standard size EMC PCB enclosures with seven frequency-specific absorber formulations as well as three standard size microwave PCB enclosures with 10 frequency specific absorber formulations.

The addition of a frequency-tuned RF absorber layer adds high performance, assimilating radiated energy without relying on repeated reflections from the interior surfaces of the shield, and without problems of harmonic resonance. These enclosures are suitable for applications from 40 MHz to 116 GHz with typical absorption rates of -20 dB (min).





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