Multilayer high attenuation shielding structure

Details Multilayer high attenuation shielding structure Multilayer high attenuation shielding structure

1983-10-11

1985-06-11

O'Keefe, Veronica

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428625, 428626, 428635, 428650, 428651, 428652, 428653, 428674, 428675, 428676, 428677, 428678, 428679, 428680, 428681, 428682, 428683, 428684, 428685, 428686, 428925, 428928, 343 18A, B21D 3900, H01Q 1700

Patent

active

045228906

ABSTRACT:
A composite structure of thin films including alternating layers of relatively high conductivity metals and low conductivity metals to combine the effects of reflection and absorption and thereby maximize the attenuation of the structure. Additionally, a similar structure of layers of materials with differing magnetic permeabilities may be used for the same purpose.

REFERENCES:
patent: 2996710 (1961-08-01), Pratt
patent: 3350180 (1967-10-01), Croll
patent: 3680107 (1972-07-01), Meinke et al.
patent: 3756788 (1973-09-01), Whetstone
patent: 4004892 (1976-01-01), Ulam
patent: 4166876 (1979-09-01), Chiba et al.
patent: 4167606 (1979-09-01), Ulam
Plastics Design Forum, Mar./Apr. 1979, pp. 16-28, "Shielding Against Electromagnetic Interference".
Weast, R. C., ed.; CRC Handbook of Chemistry Arel Physics, 66th ed., pp. F 171-172, QD65C4(1979).

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