Broadband microwave absorber

Details Broadband microwave absorber Broadband microwave absorber

1982-09-13

1996-08-06

Barron, Jr., Gilberto

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

Radio wave absorber

With particular geometric configuration

342 1, H01L 1700

Patent

active

055437966

ABSTRACT:
A broadband absorber for absorbing a broad spectrum of incident microwave radiation is provided comprising a plurality of strips of inductive absorbing material having magnetic particles dispersed throughout an organic binder; the width, thickness, and composition of the strips being selected such that each strip absorbs a specific region of the microwave spectrum. The plurality of strips of absorbing material are supported by a substrate that is electrically conductive to microwave radiation. The substrate has a plurality of grooves and ridges in a repeating pattern, the grooves being of varying depths. A facing sheet, electrically transparent to microwave radiation, is provided for coupling the incident microwave radiation to the plurality of strips of inductive absorbing material.

REFERENCES:
patent: 2527918 (1950-10-01), Collard
patent: 2992425 (1961-07-01), Pratt
patent: 3315261 (1967-04-01), Wesch
patent: 4118704 (1978-10-01), Ishino et al.
patent: 4381510 (1983-04-01), Wren

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