Means for suppressing reflection of electromagnetic radiation

Communications: directive radio wave systems and devices (e.g. – Radio wave absorber

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H01Q 1700

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active

047017619

ABSTRACT:
Composites are produced which are adapted to cover structures which are to be shielded from detection by electromagnetic radiation. The composites are in the form of a substrate, such as Mylar film or the like, having on at least one surface thereof a layer of ferrite having dispersed therein discrete particles of a ferromagnetic metal or ferrite, the composite having a high dielectric constant and a high magnetic permeability. The orientation of the particles is such that their planes are parallel to each other and to the plane of the first said ferrite. The particle thickness is substantially less than the electromagnetic skin depth of the particles and the length of the particles is substantially less than the wave length of a predetermined electromagnetic radiation.

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"Ceramics, Laser Drilling, Machining, and Scribing"; by Laserage Technology Group; no date.
W. Hayt, Engineering Electromagnetics; (McGraw-Hill, 1981); pp. 398-401.
B.I.O.S. Reports 869 and 871, (1960); British Intelligence Objectives Sub-Committee.

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