Electromagnetic News Report, July 1st, 2007
Waveguide shielding is not commonly needed in the commercial world where shielding needs are modest, but is a vital aspect of shielding where high attenuation is needed, notably in military environments.
Waveguide below cutoff is based on the fact that an electromagnetic field attenuates rapidly down a small diameter hole of sufficient depth, providing certain conditions are met. This fact allows small diameter holes to be made in conductive enclosures, as may be needed for ventilation, or as a pass through for non-metallic members.
Let's take a look at the necessary requirements to satisfy ...
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