Communications: directive radio wave systems and devices (e.g. – Radar reflector – Corner
Reexamination Certificate
2011-06-21
2011-06-21
Black, Thomas G (Department: 3661)
Communications: directive radio wave systems and devices (e.g.,
Radar reflector
Corner
C342S009000, C342S006000, C342S012000
Reexamination Certificate
active
07965220
ABSTRACT:
A chaff element for interfering with radar signals. The chaff element has a dielectric substrate and a pair of elongate electrically conductive elements, having a total length of approximately one-half wavelength of the radar signals or otherwise tuned to the radar signals, disposed on the dielectric substrate. A switch is arranged to electrically couple the pair of elongate elements together in response to a control signal generated by an oscillator circuit and a battery. The chaff element can be used in a method of providing a countermeasure against radar signals. A plurality of chaff elements can be deployed in an airspace above a radar unit emitting a radar signal and interfere with the radar signal by opening and closing the switches of the chaff elements while deployed in said airspace above the radar unit.
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Berg Richard P.
Ganz Matthew W.
Schaffner James H.
Sievenpiper Daniel F.
Black Thomas G
Chen Shelley
HRL Laboratories LLC
Ladas & Parry
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