Electromagnetic wave absorbing shielding material

Details Electromagnetic wave absorbing shielding material Electromagnetic wave absorbing shielding material

1996-11-27

1999-01-05

Weisberger, Richard

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428929, 428930, 4284111, 428901, 428689, 428457, 342 1, 342 2, 342 3, H01Q 1700

Patent

active

058559884

ABSTRACT:
An electromagnetic wave absorbing shielding material which is thin and lightweight and shows high electromagnetic wave absorbing capacity in a wide frequency region. The material comprises:
(1) a one-dimensional conductive segment pattern which is a conductive segment pattern formed from a conductive material, wherein the conductive segment pattern has a length of more than 1/2 of the wavelength of the subjective electromagnetic wave, and the segment pattern has no electrical connection therebetween,
(2) an electromagnetic wave shielding layer, and
(3) an insulating intermediate material having a thickness of 0.1-10.0 mm, located between the one-dimensional conductive segment pattern (1) and the electromagnetic wave shielding layer (2).

REFERENCES:
patent: 5214432 (1993-05-01), Kasevich et al.
patent: 5223849 (1993-06-01), Kasevich et al.
patent: 5325094 (1994-06-01), Broderick et al.

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