System and method for suppressing radio frequency transmissions

• US 20070063886A1
• Filed: 09/19/2005
• Published: 03/22/2007
• Est. Priority Date: 09/17/2004
• Status: Active Grant

• Current Assignee: Pegasus Global Strategic Solutions LLC (Pegasus Global Holdings, Inc.)
• Original Assignee: Pegasus Global Strategic Solutions LLC (Pegasus Global Holdings, Inc.)
• Inventors: Reedy, Michael, Brumley, Robert
• Granted Patent: US 7,391,356 B2
• Time in Patent Office: Days
• US Class Current: 342/13
• CPC Class Codes: G01S 7/38 Jamming means, e.g. producing false echoes
• CPC Class Codes: H04K 2203/16 for telephony
• CPC Class Codes: H04K 2203/24 for communication related to weapons
• CPC Class Codes: H04K 3/92 related to allowing or preventing remote control

Abstract

A system and method for suppressing radio frequency (“RF”) transmissions includes a transmitter for transmitting electronic signals that suppresses (e.g., prevents, disrupts, jams, interferes with or otherwise disables) RF transmissions. Some embodiments of the invention include a transmitter that suppresses one or more signals transmitted from a target transmitter in an RF transmission system to a target receiver in a wireless device operating in the RF transmission system to prevent, disrupt, jam, interfere with or otherwise disable an RF transmission between the target transmitter and the target receiver in the wireless device (i.e., target wireless device). These systems and methods may be used to interrupt communication, command and control of non-friendly combatant. These systems and methods may also be used to suppress RF transmissions to prevent the detonation of improvised explosive devices, or IEDs.

Claims

1. A system for suppressing radio frequency transmissions, the system comprising:

a transmitter that generates a suppressing signal within at least one predetermined frequency band;

an antenna port that enables an antenna to be connected to the transmitter, the antenna receiving the suppressing signal from the transmitter and broadcasting the suppressing signal to a volume of influence surrounding the antenna, the suppressing signal having the effect of suppressing radio frequency transmissions within a volume of influence surrounding the antenna; and

a power source port that enables a power source to be connected to the transmitter, the power source providing power to the transmitter.

2. The system of claim 1, further comprising a display port that enables a display to be connected to the transmitter, the display indicating a status of the transmitter.

3. The system of claim 2, wherein the status of the transmitter comprises at least one of a power on/off status, a transmitter on/off status, a power level at which the suppressing signal is being transmitted, a fault status, or a high temperature status.

4. The system of claim 2, wherein the display is mounted to a vehicle so as to be observable from a cockpit of the vehicle.

5. The system of claim 2, wherein the display is removably connected to the transmitter.

6. The system of claim 1, wherein the antenna and the power source are mounted to a vehicle.

7. The system of claim 1, wherein the antenna is an omni-directional antenna.

8. The system of claim 1, wherein the antenna is a directional antenna.

9. The system of claim 4, wherein the power source is recharged by the operation of an engine that propels the vehicle.

10. The system of claim 1, wherein the transmitter is controlled to generate the suppression signal at a signal strength that will provide a volume of influence large enough to inhibit radio frequency transmissions to an explosive device when the antenna is inside of a kill zone of the explosive device.

11. The system of claim 1, wherein the transmitter further comprises an outer case that houses the transmitter, the outer case being ruggedized and sealed.

12. The system of claim 11, wherein the transmitter further comprises an external bus provided on the outer case, the external bus enabling the antenna and the power source to be removably connected from the transmitter.

13. The system of claim 12, wherein the transmitter further comprises a display provided on the external bus, the display indicating a status of the transmitter.

14. The system of claim 12, further comprising a display that indicates a status of the transmitter, the display being removably connected to the transmitter at the external bus.

15. The system of claim 4, wherein the vehicle comprises a military vehicle.

16. The system of claim 4, wherein the vehicle comprises an armored civilian vehicle.

17. The system of claim 4, wherein the antenna is mounted to the roof of the vehicle such that the roof of the vehicle acts as a ground plane and signal reflector for the antenna.

18. A system for suppressing radio frequency transmissions, the system comprising:

a transmitter that generates a suppressing signal within at least one predetermined frequency band, the suppressing signal being broadcast from the transmitter to a volume of influence surrounding the antenna, the suppressing signal having the effect of suppressing radio frequency transmissions within a volume of influence surrounding the antenna; and

a mounting member that mounts the transmitter to body armor that is worn by a user of the system, wherein mounting the transmitter to the body armor of the user facilitates transport of the transmitter by the user.

19. The system of claim 18, wherein the mounting member is provided on the transmitter.

20. The system of claim 19, wherein the mounting member is provided on the body armor.

21. The system of claim 19, wherein the body armor comprises a protective vest.

22. The system of claim 19, wherein the transmitter comprises an antenna that broadcasts the suppressing signal.

23. The system of claim 22, further comprising an antenna mounting member, separate from the mounting member, that mounts the antenna to the body armor.

24. The system of claim 23, wherein the antenna mounting member mounts the antenna to a first piece of body armor and the mounting member mounts at least one other component of the transmitter to a second piece of body armor.

25. The system of claim 24, wherein the first piece of body armor comprises a helmet and the second piece of body armor comprises a protective vest.

26. The system of claim 19, wherein the transmitter is controlled to generate the suppression signal at a signal strength that will provide a volume of influence large enough to inhibit radio frequency transmissions to an explosive device when the transmitter is inside of a kill zone of the explosive device.

27. A system for screening potentially hostile parties, the system comprising:

a transmitter that generates a suppressing signal within at least one predetermined frequency band, the suppressing signal being broadcast from the transmitter to a volume of influence surrounding the antenna, the suppressing signal having the effect of suppressing radio frequency transmissions within a volume of influence surrounding the antenna; and

a screening module that screens potentially hostile parties for explosives,

wherein the transmitter and the screening module are arranged such that the screening module is positioned within the volume of influence during operation to inhibit an explosive device from being remotely detonated while the screening module is being used to search for explosives, and

wherein the transmitter and the screening module are configured and operated such that the effectiveness of the transmitter is not substantially impeded by the screening module and the effectiveness of the screening module is not impeded by the transmitter.