RADIO FREQUENCY PARTICLES

• US 20120299762A1
• Filed: 01/21/2010
• Published: 11/29/2012
• Est. Priority Date: 01/22/2009
• Status: Active Grant

• Current Assignee: Raytheon Company (Rtx Corporation)
• Original Assignee: Raytheon Company (Rtx Corporation)
• Inventors: Frazier, Gary A.
• Granted Patent: US 8,325,080 B1
• Time in Patent Office: Days
• US Class Current: 342/14
• CPC Class Codes: F41H 13/00 Means of attack or defence not otherwise provided for details of radar or sonar systems G01S7/00
• CPC Class Codes: G01S 13/75 using transponders powered from received waves, e.g. using passive transponders , or using passive reflectors
• CPC Class Codes: G01S 7/38 Jamming means, e.g. producing false echoes
• CPC Class Codes: H01Q 1/248 provided with an AC/DC converting device, e.g. rectennas
• CPC Class Codes: H04K 2203/24 for communication related to weapons
• CPC Class Codes: H04K 3/42 characterized by the control of the jamming frequency or wavelength
• CPC Class Codes: H04K 3/46 characterized in that the jamming signal is produced by retransmitting a received signal, after delay or processing
• CPC Class Codes: H04K 3/62 by exposing communication, processing or storing systems to electromagnetic wave radiation, e.g. causing disturbance, disruption or damage of electronic circuits, or causing external injection of faults in the information
• CPC Class Codes: H04K 3/68 using passive jamming, e.g. by shielding or reflection shielding of apparatus or components against electric or magnetic field H05K9/00
• CPC Class Codes: H04K 3/82 related to preventing surveillance, interception or detection
• CPC Class Codes: H04K 3/825 by jamming
• CPC Class Codes: H04K 3/86 related to preventing deceptive jamming or unauthorized interrogation or access, e.g. WLAN access or RFID reading record carriers with integrated circuit chips including means for preventing undesired reading or writing from or to record carriers by hindering electromagnetic reading or writing G06K19/07318; arrangements for sensing record carriers including arrangements for protecting the interrogation against piracy attacks G06K7/10257

Abstract

Particle circuits for disrupting signals associated with a communication system or for marking a position of a device are provided. In one embodiment, the invention relates to a composite for generating radio frequency (RF) signals, the composite including a medium configured to adhere to a device for emanating communication signals, and at least one particle circuitry within the medium, wherein the at least one particle circuitry is configured to radiate radio frequency signals for disrupting the communication signals of the device.

Claims

1. A composite for generating radio frequency (RF) signals, the composite comprising:

a medium configured to adhere to a device for emanating communication signals; and

at least one particle circuitry within the medium;

wherein the at least one particle circuitry is configured to radiate radio frequency signals for disrupting the communication signals of the device.

2. The composite of claim 1, wherein the medium is a fluid medium.

3. The composite of claim 2, wherein the fluid medium is paint.

4. The composite of claim 1, wherein the medium is contained within a vessel.

5. The composite of claim 1, wherein the at least one particle is further configured to:

receive radio frequency energy from the device; and

generate the radio frequency signals using, at least in part, the received energy.

6. The composite of claim 5, wherein the at least one particle is further configured to store the received energy.

7. The composite of claim 1, wherein the device is a radar antenna.

8. The composite of claim 1, wherein the device is a radio communication transmitter.

9. The composite of claim 1, wherein the at least one particle is further configured to:

receive energy from a source of light energy; and

generate the radio frequency signals using, at least in part, the received energy.

10. The composite of claim 9, wherein the source of light energy is the sun.

11. The composite of claim 9, wherein the source of light energy is a laser.

12. The composite of claim 1:

wherein the at least one particle is further configured to;

receive radio frequency energy at a first frequency from the device; and

generate the radio frequency signals at a second frequency using, at least in part, the received energy; and

wherein the first frequency and the second frequency are approximately equal.

13. The composite of claim 1:

wherein the at least one particle is further configured to;

receive radio frequency energy at a first frequency from the device; and

generate the radio frequency signals at a second frequency using, at least in part, the received energy; and

wherein the first frequency and the second frequency are not equal.

14. The composite of claim 1, wherein the at least one particle includes a tunnel diode for generating the radio frequency signals for disrupting the communication signals of the device.

31. The composite of claim 7, wherein the radar antenna comprises a dipole antenna.

15. A composite for generating radio frequency (RF) signals, the composite comprising:

a medium configured to adhere to a device for emanating communication signals; and

at least one particle circuitry within the medium;

wherein the at least one particle circuitry is configured to radiate signals for marking a position of the device.

16. The composite of claim 15, wherein the medium is a fluid medium.

17. The composite of claim 16, wherein the fluid medium is paint.

18. The composite of claim 15, wherein the medium is contained within a vessel.

19. The composite of claim 15, wherein the at least one particle is further configured to:

receive radio frequency energy from the device; and

generate radio frequency signals using, at least in part, the received energy.

20. The composite of claim 19, wherein the at least one particle is further configured to store the received energy.

21. The composite of claim 15, wherein the device is a radar antenna.

22. The composite of claim 15, wherein the device is a radio communication transmitter.

23. The composite of claim 15, wherein the at least one particle is further configured to:

receive energy from a source of light energy; and

generate radio frequency signals using, at least in part, the received energy.

24. The composite of claim 23, wherein the source of light energy is the sun.

25. The composite of claim 23, wherein the source of light energy is a laser.

32. The composite of claim 15, wherein the device is a radar antenna, and wherein the radar antenna comprises a dipole antenna.

26. A composite for disrupting signals associated with a source of ambient radio frequency (RF) energy, the composite comprising:

a medium configured to adhere to a device for emanating communication signals; and

a particle circuitry within the medium and configured to;

receive energy from the source of ambient RF energy; and

generate radio frequency signals, using the received energy, for disrupting signals emanating from the source of ambient RF energy.

27. A composite for disrupting signals associated with a source of ambient radio frequency (RF) energy, the composite comprising:

a medium containing at least one particle comprising an antenna and a gain element;

the gain element configured to;

rectify radio frequency energy received by the antenna; and

oscillate using the received energy.

28. The composite of claim 27, wherein the gain element is a two-terminal negative resistance device.

29. The composite of claim 27, wherein the gain element is a tunnel diode.

30. The composite of claim 27, wherein the antenna comprises a dipole antenna.