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US 8,428,508 B2Granted
Sweeping mode of jamming system
AssigneeKaonetics Technologies, Inc.
InventorJames Cornwell
Life of this patent
Estimating the term…
Abstract
A system includes a generator and at least one device. The generator includes a waveform oscillator and a blanking pulse generator. Each device includes a transmit antenna, a receive antenna, an antenna unit, a mixer and a detector. The antenna unit includes a receiver coupled to the receive antenna, an amplifier coupled to the receiver and a transmitter coupled to the transmit antenna and the blanking pulse generator. The mixer has inputs coupled to the amplifier and the waveform oscillator. The detector is coupled to the mixer.
Claims32
A system for jamming radio frequency communications comprising:
- a radio frequency generator for producing a radio frequency signal;
- at least two transmit antennas for transmitting a radio frequency signal;
- an antenna unit having at least two amplifiers, each amplifier having an input and an output, and at least two transmitters, each transmitter having an input and an output, the output of each respective amplifier coupled to the input of each respective transmitter and the output of each respective transmitter coupled to its respective transmit antenna;
- and
- a programmable feed device coupled between the radio frequency generator and amplifier of the antenna unit, wherein, the radio frequency generator provides the radio frequency signal modulated upon a sweeping radio frequency carrier signal,
- wherein the frequency transmitted from at least one of the transmit antennas sweeps forward from a first low frequency to a second higher frequency and then sweeps back from the second higher frequency to the first lower frequency.
3 more elements
A system for jamming radio frequency communiciations comprising:
- a radio frequency generator for producing a radio frequency signal;
- at least two transmit antennas for transmitting a radio frequency signal;
- an antenna unit having at least two amplifiers, each amplifier having an input and an output, and at least two transmitters, each transmitter having an input and an output, the output of each respective amplifier coupled to the input of each respective transmitter and the output of each respective transmitter coupled to its respective transmit antenna;
- and
- a programmable feed device coupled between the radio frequency generator and amplifier of the antenna unit, wherein, the radio frequency generator provides the radio frequency signal modulated upon a sweeping radio frequency carrier signal, wherein the antenna unit includes a programmable balun coupled to receive the radio frequency signal from the programmable feed device, the programmable balun functioning to split the radio frequency signal from the programmable feed device into at least two phase diverse signals to drive respective amplifiers;
- wherein the antenna unit includes a programmable balun coupled to receive the radio frequency signal from the programmable feed device, the programmable balun functioning to split the radio frequency signal from the programmable feed device into at least two phase diverse signals to drive respective amplifiers;
- and
- wherein the forward frequency sweep is out of phase with the back frequency sweep.
5 more elements
A system for jamming radio frequency communiciations comprising:
- a radio frequency generator for producing a radio frequency signal;
- at least two transmit antennas for transmitting a radio frequency signal;
- an antenna unit having at least two amplifiers, each amplifier having an input and an output, and at least two transmitters, each transmitter having an input and an output, the output of each respective amplifier coupled to the input of each respective transmitter and the output of each respective transmitter coupled to its respective transmit antenna;
- and
- a programmable feed device coupled between the radio frequency generator and amplifier of the antenna unit, wherein, the radio frequency generator provides the radio frequency signal modulated upon a sweeping radio frequency carrier signal,
- wherein the radio frequency generator provides a randomly varying signal to control at least one of phase shifting and attenuation of the radio frequency signal.
3 more elements
A system for jamming radio frequency communiciations comprising:
- a radio frequency generator for producing a radio frequency signal;
- at least two transmit antennas for transmitting a radio frequency signal;
- an antenna unit having at least two amplifiers, each amplifier having an input and an output, and at least two transmitters, each transmitter having an input and an output, the output of each respective amplifier coupled to the input of each respective transmitter and the output of each respective transmitter coupled to its respective transmit antenna;
- and
- a programmable feed device coupled between the radio frequency generator and amplifier of the antenna unit, wherein, the radio frequency generator provides the radio frequency signal modulated upon a sweeping radio frequency carrier signal,
- wherein the radio frequency generator produces a radio frequency signal characterized by a center frequency and a band width greater than 20% of the center frequency.
3 more elements
A system for jamming radio frequency communiciations comprising:
- a radio frequency generator for producing a radio frequency signal;
- at least two transmit antennas for transmitting a radio frequency signal;
- an antenna unit having at least two amplifiers, each amplifier having an input and an output, and at least two transmitters, each transmitter having an input and an output, the output of each respective amplifier coupled to the input of each respective transmitter and the output of each respective transmitter coupled to its respective transmit antenna;
- and
- a programmable feed device coupled between the radio frequency generator and amplifier of the antenna unit, wherein, the radio frequency generator provides the radio frequency signal modulated upon a sweeping radio frequency carrier signal,
- wherein the output of the radio frequency generator includes a randomly chopped binary output wave form that is used as a chopping signal to modulate the signal.
3 more elements
A system for jamming radio frequency communiciations comprising:
- a radio frequency generator for producing a radio frequency signal;
- at least two transmit antennas for transmitting a radio frequency signal;
- an antenna unit having at least two amplifiers, each amplifier having an input and an output, and at least two transmitters, each transmitter having an input and an output, the output of each respective amplifier coupled to the input of each respective transmitter and the output of each respective transmitter coupled to its respective transmit antenna;
- and
- a programmable feed device coupled between the radio frequency generator and amplifier of the antenna unit, wherein, the radio frequency generator provides the radio frequency signal modulated upon a sweeping radio frequency carrier signal,
- further comprising programmable memory, wherein the memory stores attenuation and phase shifting properties to be provided to each programmable feed device.
3 more elements
A system for jamming radio frequency communiciations comprising:
- a radio frequency generator for producing a radio frequency signal;
- at least two transmit antennas for transmitting a radio frequency signal;
- an antenna unit having at least two amplifiers, each amplifier having an input and an output, and at least two transmitters, each transmitter having an input and an output, the output of each respective amplifier coupled to the input of each respective transmitter and the output of each respective transmitter coupled to its respective transmit antenna;
- and
- a programmable feed device coupled between the radio frequency generator and amplifier of the antenna unit, wherein, the radio frequency generator provides the radio frequency signal modulated upon a sweeping radio frequency carrier signal,
- wherein the frequency transmitted from at least one of the transmit antennas sweeps from a first low frequency to a second higher frequency and then sweeps back from the second higher frequency to the first lower frequency, wherein desired frequency bands between the first low frequency and the second higher frequency are scanned at a different rate than other frequency bands between the first low frequency and the second higher frequency.
3 more elements
A system for jamming radio frequency communiciations comprising:
- a radio frequency generator for producing a radio frequency signal;
- at least two transmit antennas for transmitting a radio frequency signal;
- an antenna unit having at least two amplifiers, each amplifier having an input and an output, and at least two transmitters, each transmitter having an input and an output, the output of each respective amplifier coupled to the input of each respective transmitter and the output of each respective transmitter coupled to its respective transmit antenna;
- and
- a programmable feed device coupled between the radio frequency generator and amplifier of the antenna unit, wherein, the radio frequency generator provides the radio frequency signal modulated upon a sweeping radio frequency carrier signal,
- further comprising:
- a signal mixer having inputs and an output, the output of the amplifier coupled to one of the inputs of the signal mixer and the output of the radio frequency generator physically coupled to another input of the signal mixer, and the output of the radio frequency generator coupled to one of the inputs of the amplifier;
- a detector coupled to the output of the signal mixer for detecting a potential radio frequency threat signal;
- and
- a blanking pulse generator coupled to the transmitter for temporarily silencing or blanking the transmitter so that the transmitter does not output a signal to the transmit antenna.
7 more elements
Dependencies are inferred from the claim text.