Wave attenuation

Communications: directive radio wave systems and devices (e.g. – Radio wave absorber – For aircraft or missile

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Details

342 4, 342 13, H01Q 1700, G01S 738

Patent

active

054205883

ABSTRACT:
A radar cross-section reduction system utilizes a charging device for creating a high positive DC static potential on an object such as an aircraft. The charging system is mounted to the object so that this DC potential would be applied to the outer skin or surface of the object. The charging system includes Van de Graaf generators located in housings attached to the object. Each Van de Graaf generator has two pulleys about which a belt is rotated. One of the pulleys and the belt are nonconductors, while the other pulley is a conductor. This results in a buildup of positive charges at one end of the belt and negative charges at the other end. The negative charges are picked off and applied to a ground section. The positive charges are picked off and applied to a collector. The collector is in electrical continuity with the outer structure of the object. Negative dissipators attached to the ground section dissipate the excess negative charges during flight. Positive dissipators may be selectively switched into engagement with the skin to dissipate the positive charge on the skin prior to landing.

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