Combined microwave and infrared chaff

Details Combined microwave and infrared chaff Combined microwave and infrared chaff

1978-05-30

1991-09-17

Wallace, Linda J.

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

Radar reflector

Chaff

342 5, 102504, 102505, H01Q 1500, F42B 1268

Patent

active

050498835

ABSTRACT:
A long, slender thread or filament of a slow-burning substance is metalli, 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.

REFERENCES:
patent: 2953377 (1960-09-01), Brust
patent: 3118638 (1964-01-01), Rohr
patent: 3830671 (1974-08-01), McArdle
patent: 3836968 (1974-09-01), Schillref
patent: 3863254 (1975-01-01), Turner
patent: 3878524 (1975-04-01), Olstowski

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