Electromagnetic wave absorber

Details Electromagnetic wave absorber Electromagnetic wave absorber

1995-04-12

1996-07-16

Pihulic, Daniel T.

Communications: directive radio wave systems and devices (e.g.,

Radio wave absorber

H05K 900, H01Q 1700

Patent

active

055371167

ABSTRACT:
An electromagnetic wave absorber is provided with a first dielectric material layer (90, 200, 220) having two surfaces, a wave reflection layer (91, 201, 221) laminated on the one surface of the first dielectric material layer, a first resistive layer (92, 202, 222) laminated on the other, opposite, surface of the first dielectric material layer (90, 200, 220), and a second dielectric material layer (95, 205, 225) disposed proximate to the first resistive layer (92, 202, 222) leaving an air space, (94, 204, 224) having a thickness sufficient to determine adjust absorption characteristics for polarized waves, between the second dielectric material layer and the first resistive layer.

REFERENCES:
patent: 4038660 (1977-07-01), Connolly et al.
patent: 5214432 (1993-05-01), Kasevich et al.
"Design of a Single Layer Broadband Microwave Absorber Using Cobalt-Substituted Barium Hexagonal Ferrite", GUPTA et al, International Microwave Symposium Digest, vol. 1, Jun. 1992, pp. 317-320.
Patent Abstracts of Japan, vol. 17, No. 476 (E-1424), Aug. 30, 1993 & JP-A-05 114 813.

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