Patent ID: 11943047
Assignee: AGENCY FOR DEFENSE DEVELOPMENT
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A method of controlled reception pattern antenna (CRPA) neutralization for illegal unmanned aerial vehicle (UAV), the method comprising:
transmitting, by a first interference signal generator installed in a first area, a first direct wave to a CRPA of an illegal UAV and transmitting a first reflected wave inducing signal to a first passive propagation mirror installed in a second area;
reflecting, by the first passive propagation mirror, the first reflected wave inducing signal toward the illegal UAV so that the first reflected wave propagates toward the CRPA of the illegal UAV;
transmitting, by a second interference signal generator installed in a third area, a second direct wave toward the CRPA of the illegal UAV and transmitting a second reflected wave inducing signal toward a second passive propagation mirror installed in a fourth area; and
reflecting, by the second passive propagation mirror, the second reflected wave inducing signal toward the illegal UAV so that the second reflected wave propagates toward the CRPA of the illegal UAV.