Patent ID: 11894613
Assignee: NOTCH, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A metamaterial system for integration into an object to cause adjustment of a radar profile of the object, the system comprising:
a set of metamaterial structures including a first metamaterial structure configured to be controllably reflective, so as to operate in a first mode wherein it is reflective and in a second mode wherein it is transmissive, and operating in a reflective mode at an external radar frequency f1 so as to cause reflection of an RF radar wave that is at frequency f1;
a waveform generator coupled to a member of the set of metamaterial structures and configured to cause modification of the radar profile of the object by operating in a mode selected from the group consisting of:
(a) generating a repetitive waveform at a set of frequencies for providing a change of the radar profile only in a range of the object;
(b) generating a repetitive waveform at a set of frequencies for providing a change of the radar profile in both range and velocity of the object;
(c) generating a repetitive waveform at a set of frequencies for providing a change of the radar profile only in a velocity of the object;
(d) generating a pseudorandom binary sequence waveform at a set of frequencies for providing a set of radar decoys having a set of different ranges and velocities as compared to those of the object; and
(e) combinations of the foregoing.