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US 10,426,022 B2Granted
Pulsed power generation using magnetron RF source with internal modulation
AssigneeMuons, Inc.
InventorGrigory M. Kazakevich
Life of this patent
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Abstract
A system uses one or more magnetrons to generate pulsed radio-frequency (RF) power, such as for powering an accelerating cavity. The one or more magnetrons each having a self-excitation threshold voltage and configured to operate with internal modulation using a pulsed RF input signal to produce the pulsed RF power when being powered by a direct-current power supply at a voltage level below the self-excitation threshold voltage.
Claims20
A system for radio-frequency (RF) power generation, comprising:
- an RF pulsed transmitter configured to produce a pulsed RF transmitter output signal using a first pulsed magnetron output signal, the pulsed RF transmitter including:
- a transmitter input to receive a pulsed RF transmitter input signal;
- a transmitter output to transmit the pulsed RF transmitter output signal;
- a first magnetron having a first self-excitation threshold voltage and configured to operate with internal modulation using the pulsed RF transmitter input signal to produce the first pulsed magnetron output signal when being powered at a first voltage level below the first self-excitation threshold voltage;
- and
- a first direct-current (DC) power supply configured to power the magnetron.
3 more elements
A method for radio-frequency (RF) power generation, comprising:
- receiving a pulsed RF transmitter input signal;
- operating a first magnetron having a first self-excitation threshold voltage, including:
- powering the first magnetron at a first voltage level below the first self-excitation threshold voltage using a first direct-current (DC) power supply;
- and
- producing a first pulsed magnetron output signal by internal modulation using the pulsed RF transmitter input signal;
- and
- producing a pulsed RF transmitter output signal using the first pulsed magnetron output signal.
4 more elements
A system for powering an accelerating cavity, comprising:
- a magnetron configured to receive an input injection-locking signal, to produce an injection-locked output signal using the input injection-locking signal when the input injection-locking signal allows the magnetron to operate at a subcritical cathode voltage that is below a critical voltage needed for self-excitation of the magnetron, and to interrupt the injection-locked output signal when the input injection-locking signal is not sufficiently strong to allow the magnetron to operate at the subcritical cathode voltage;
- and
- a cathode voltage supply system coupled to the magnetron and configured to supply the subcritical cathode voltage and to control a power of the injection-locked output signal by controlling the cathode voltage.
Dependencies are inferred from the claim text.