Research/Patents/US 5214432
US 5214432

BROADBAND ELECTROMAGNETIC ENERGY ABSORBER

Assignee

CHOMERICS, INC., 77 DRAGON COURT, WOBURN, MA A CORP. OF DE

Filed

Feb 16, 1990

Granted

May 25, 1993

Location

WESTON MA US

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.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Apr 20, 1992

Rescinded

Jul 30, 1992

Duration

3 months

Inventor

  • 1RAYMOND S. KASEVICH

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records