Vented radio frequency shielded enclosure

Details Vented radio frequency shielded enclosure Vented radio frequency shielded enclosure

1979-04-13

1981-02-03

Envall, Jr., Roy N.

Electricity: conductors and insulators

With fluids or vacuum

With cooling or fluid feeding, circulating or distributing

174 35R, 361384, 361424, H05K 900

Patent

active

042490332

ABSTRACT:
A ventilated enclosure for shielding electronic equipment from radio frequency energy having a minimum wavelength .lambda. which comprises a metal container forming a fully enclosed volume in which the electronic equipment is mounted. Cooling means, such as a fan, directs air through the volume to cool the equipment. The air enters and leaves the volume through an inlet duct and an outlet duct, respectively. Each duct forms a waveguide having a major cross-sectional dimension less than .lambda./2 and a length of the order of 2 .lambda. or greater.

REFERENCES:
patent: 3124720 (1964-03-01), Green
patent: 3553343 (1971-01-01), Garlington

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