Radio frequency jammer

• US 7,318,368 B2
• Filed: 02/11/2005
• Issued: 01/15/2008
• Est. Priority Date: 02/11/2004
• Status: Expired due to Fees

• Current Assignee: TMC Design Corp.
• Original Assignee: TMC Design Corp.
• Inventors: Ham, Christopher V., Scoughton, Troy E.
• Primary Examiner(s): Chambers; Troy
• Application Number:
  US11/062,296
• Publication Number:
  US 20060060074A1
• Time in Patent Office: 1,068 Days
• Field of Search: 89/11.1
• US Class Current: 89/1.11
• 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 3/44 characterized by the control of the jamming waveform or modulation type
• CPC Class Codes: H04K 3/45 characterized by including monitoring of the target or target signal, e.g. in reactive jammers or follower jammers for example by means of an alternation of jamming phases and monitoring phases, called "look-through mode"
• CPC Class Codes: H04K 3/92 related to allowing or preventing remote control

Abstract

A method and apparatus for broadcasting electromagnetic waves such that user-selected electromagnetic receivers are prevented from receiving an intended electromagnetic communication. Such device can be used to jam detonation of remote controlled explosive devices. The device can be portable or stationary, is preferably programmable, is low cost, and can be used by untrained personnel.

Claims

1. A radio frequency jamming device comprising:

an electromagnetic radiating device comprising an antenna; and

an electronics unit, said electronics unit comprising;

one or more analog radio frequency modulator cards, each of said cards comprising one or more Voltage Controlled Oscillators, one or more power amplifiers and a combiner; and

at least one processor card, said processor card comprising a processor and a Gaussian noise generator;

wherein an output from said electronics unit is electrically connected to said electromagnetic radiating device.

2. The jamming device of claim 1 wherein said device is portable.

3. The jamming device of claim 2 wherein said antenna is mounted on a vehicle.

4. The jamming device of claim 1 wherein said antenna is selected from the group consisting of a wideband antenna, a monopole antenna, and combinations thereof.

5. The jamming device of claim 1 wherein said electromagnetic radiating device is less than approximately 32 inches high and less than approximately 4 inches in diameter.

6. The jamming device of claim 1 wherein said electromagnetic radiating device appears as if it were part of normal equipment.

7. The jamming device of claim 1 comprising modular components.

8. The jamming device of claim 1 wherein said output comprises a programmable bandwidth or programmable frequency range.

9. The jamming device of claim 1 wherein said output is programmable by depot level maintenance personnel.

10. The jamming device of claim 1 further comprising at least one modulation mode selected from the group consisting of Δ

P/Δ

T, Δ

F/Δ

T, and frequency hop.

11. The jamming device of claim 1 further comprising a threat database.

12. The jamming device of claim 1 wherein at least one of said power amplifiers is a wide-band amplifier.

13. The jamming device of claim 1 capable of transmitting at least approximately 10 watts of electromagnetic radiation across a desired frequency range.