The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2009
Filed:
Sep. 17, 2007
Matthew W. Ganz, Marina del Rev., CA (US);
James H. Schaffner, Chatsworth, CA (US);
Daniel F. Sievenpiper, Santa Monica, CA (US);
Richard P. Berg, Driggs, ID (US);
Matthew W. Ganz, Marina del Rev., CA (US);
James H. Schaffner, Chatsworth, CA (US);
Daniel F. Sievenpiper, Santa Monica, CA (US);
Richard P. Berg, Driggs, ID (US);
HRL Laboratories, LLC, Malibu, CA (US);
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.