Accession Number:

ADD015088

Title:

Combined Microwave and Infrared Chaff.

Descriptive Note:

Patent, Filed 30 May 78, patented 17 Sep 91,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1991-09-17

Pagination or Media Count:

4.0

Abstract:

A long, slender thread or filament of a slow burning substance is metallized, by evaporation, cold spraying, or the like, with aluminum, zinc or other similar substance. A short length at one end is not metallized but is provided with means for igniting the filament when the chaff is dispensed. A bundle of these filaments are then packed in an impermeable foil envelope and preferably filled with an inert atmosphere. When dispensed, the cloud of slow-burning filaments perform toward infrared search or tracking devices in a manner analogous to the clutter signal created in radars by conventional chaff. At the same time, the metallic coating on the filament acts as a conventional chaff, giving a capability to interfere with either infrared or microwave devices and devices with a combination of infrared and microwave capabilities.

Subject Categories:

  • Radar Countermeasures

Distribution Statement:

APPROVED FOR PUBLIC RELEASE