Microwave amplification device including a microwave electron tube having a getter that can be controlled
AssigneeNEC Network and Sensor Systems, Ltd.
InventorTaishi Masuda
Life of this patent
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Abstract
The objective of the invention is to provide a microwave tube, or the like, wherein gas adsorption action of a getter may be satisfactorily performed independently from a microwave amplification operation. In order to solve this problem, this microwave electron tube comprises: a helix wherein a microwave may progress oriented from an input section to an output section within a helical tube; an electron gun emitting an electron flow oriented toward the helix; a focusing device causing the electron flow to traverse the vicinity of the helix in the direction of a collector; the collector absorbing the electron flow; and a getter having a heater insulated from the cathode provided in the electron gun.
Claims13
A power source provided for a getter included in a microwave electron tube including:
- a helix configured to guide a microwave signal to travel from an input section to an output section through a helical tube;
- an electron gun emitting an electron flow toward the helix;
- a focusing device causing the electron flow to traverse a vicinity of the helix in a direction to a collector;
- and
- the collector absorbing the electron flow,
- the power source including a control unit performing control of a timing to perform driving of a heater insulated from a cathode provided in the electron gun, wherein
- the control of the timing includes starting the driving by a start of microwave signal amplification by the microwave electron tube.
A power source provided for a getter included in a microwave electron tube including:
- a helix configured to guide a microwave signal to travel from an input section to an output section through a helical tube;
- an electron gun emitting an electron flow toward the helix;
- a focusing device causing the electron flow to traverse a vicinity of the helix in a direction to a collector;
- and
- the collector absorbing the electron flow,
- the power source including a control unit performing control of a timing to perform driving of a heater insulated from a cathode provided in the electron gun, wherein
- the control of the timing includes starting the driving by a vacuum value representing a degree of vacuum in one of an inner space of the electron gun, a space surrounding the helix, and an inner space of the collector.
A microwave electron tube including:
- a helix configured to guide a microwave signal to travel from an input section to an output section through a helical tube;
- an electron gun emitting an electron flow toward the helix;
- a focusing device causing the electron flow to traverse a vicinity of the helix in a direction to a collector;
- the collector absorbing the electron flow;
- and
- a getter including a heater insulated from a cathode provided in the electron gun, wherein the getter is interposed between the focusing device and the collector.
A microwave signal amplification device including:
- a microwave electron tube;
- and
- a power source driving a heater,
- wherein the microwave electron tube includes,
- a helix configured to guide a microwave signal to travel from an input section to an output section through a helical tube;
- an electron gun emitting an electron flow toward the helix;
- a focusing device causing the electron flow to traverse a vicinity of the helix in a direction to a collector;
- the collector absorbing the electron flow
- a getter including the heater insulated from a cathode provided in the electron gun;
- and
- control unit performing control of a timing at which the power source performs driving of the heater.
Dependencies are inferred from the claim text.