US 12,283,749 B2
Active chaff
Larry Hurzon, Alexandria, VA (US)
Assigned to Vorbeck Materials Corp., Jessup, MD (US)
Filed by Vorbeck Materials Corp., Jessup, MD (US)
Filed on Dec. 8, 2022, as Appl. No. 18/077,684.
Application 18/077,684 is a continuation of application No. 16/811,154, filed on Mar. 6, 2020, granted, now 11,581,654.
Application 16/811,154 is a continuation of application No. 15/536,979, granted, now 10,629,996, issued on Apr. 21, 2020, previously published as PCT/US2015/055909, filed on Oct. 16, 2015.
Claims priority of provisional application 62/064,974, filed on Oct. 16, 2014.
Prior Publication US 2023/0335912 A1, Oct. 19, 2023
Int. Cl. H01Q 15/14 (2006.01); F41J 2/00 (2006.01); F42B 12/70 (2006.01); G01S 7/38 (2006.01); H01Q 15/00 (2006.01)
CPC H01Q 15/145 (2013.01) [F41J 2/00 (2013.01); F42B 12/70 (2013.01); G01S 7/38 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A chaff electronic countermeasure device comprising:
an antenna element in communication with a substrate;
an integrated circuit in electrical communication with the conductive antenna element;
wherein
the conductive antenna element comprises a conductive composition;
the conductive composition comprises a conductive polymer and graphene sheets;
the device is configured to absorb from a radar source a first radio frequency having a first amplitude;
the device is configured to be dispersed aerially from a mobile platform;
the mobile platform is an aerial platform or a sea-based platform;
in response to absorbing the first radio frequency, the device is configured to reradiate at least a portion of a second radio frequency having a second amplitude toward the radar source, thereby resulting in an increased radar cross section of the device as perceived by the radar source;
the second radio frequency corresponds to a radio frequency signature that is not associated with the aerial platform or the sea-based platform; and
the second amplitude is higher than the first amplitude.