Fiber composite with layers matched to peak radar wave attenuati

Details Fiber composite with layers matched to peak radar wave attenuati Fiber composite with layers matched to peak radar wave attenuati

1987-01-30

1991-03-26

Nelson, Peter A.

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

Radio wave absorber

With particular geometric configuration

342 2, 252511, 156279, 428113, 428367, 428294, 428408, 428298, H01Q 1700, C11D 1504, B32B 512

Patent

active

050033115

ABSTRACT:
The fiber composite for bearing structures for absorption of electromagnetic waves consists in its structure of at least three layers (2, 3, 4, 5, 6, 7, 8, 9) to be different in their electromagnetic material constants, whereby one or more fiber layers (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24) are used for the layers (2 to 9). The fiber layers demonstrate alternately by layers a high or low electrical conductivity such that the electromagnetic material constants of the layers (2 to 9) composed of the fiber layers (13 to 21 and 23, 24) and binder and the layer thicknesses are matched to one another such that the reflection attenuation is integrally maximized in a given frequency range.

REFERENCES:
patent: 4404125 (1983-09-01), Abolins et al.
patent: 4435465 (1984-03-01), Ebneth et al.
patent: 4471015 (1984-09-01), Ebneth et al.
patent: 4474685 (1984-10-01), Annis
patent: 4566990 (1986-01-01), Liu et al.
patent: 4596670 (1986-06-01), Liu
patent: 4610808 (1986-09-01), Kleiner
patent: 4674714 (1987-03-01), Goto

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