Broadband electromagnetic energy absorber

Details Broadband electromagnetic energy absorber Broadband electromagnetic energy absorber

1990-02-16

1993-05-25

Tubbesing, T. H.

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

Radio wave absorber

For camouflage

342 4, H01Q 1700

Patent

active

052144321

ABSTRACT:
A radar absorbing material comprising multiple layers integrated to form a thin, flexible, and lightweight structure. The material includes a substrate having disposed thereon absorber elements that are resistively loaded to enable one to construct a device relatively small and thin size. The broadbanding of the device is carried out by multilayering concepts in which different size antenna patterns are multilayered with each layer designed to absorb frequencies in a specified range. The absorber elements are selected for their intrinsic impedance properties and preferrably be polarization insensitive. These absorber elements are disposed in a random and preferrably aperiodic pattern.

REFERENCES:
patent: 3315261 (1967-04-01), Wesch
patent: 3427619 (1969-02-01), Wesch et al.
patent: 3754255 (1973-08-01), Suetake et al.
patent: 4888590 (1989-12-01), Chase

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