Microwave tube and method for controlling the same
AssigneeNEC Network and Sensor Systems, Ltd.
InventorTetsuo Machida
Life of this patent
Estimating the term…
Abstract
A microwave tube includes an electron gun that emits an electron beam; a magnetic circuit that focuses the electron beam emitted from the electron gun; a collector that captures the electron beam that has passed through the magnetic circuit; a high frequency circuit that is spirally arranged around the electron beam focused by the magnetic circuit and that transmits a high frequency; and a magnetic body part arranged around the electron gun so as to be movable in an emission direction of the electron beam. A high frequency output from the high frequency circuit is controlled to be constant by moving the magnetic body part in an emission direction of the electron beam.
Claims20
A microwave tube, comprising:
- an electron gun that emits an electron beam;
- a magnetic circuit that focuses the electron beam emitted from the electron gun;
- a collector that captures the electron beam that has passed through the magnetic circuit;
- a high frequency circuit that is spirally arranged around the electron beam focused by the magnetic circuit and that transmits a high frequency;
- and
- a magnetic body part arranged around the electron gun so as to be movable in an emission direction of the electron beam, wherein
- a high frequency output from the high frequency circuit is controlled to be constant by moving the magnetic body part in an emission direction of the electron beam.
A method for controlling a microwave tube,
- wherein the microwave tube comprises:
- an electron gun that emits an electron beam;
- a magnetic circuit that focuses the electron beam emitted from the electron gun;
- a collector that captures the electron beam that has passed through the magnetic circuit;
- a high frequency circuit that is spirally arranged around the electron beam focused by the magnetic circuit and that transmits a high frequency;
- and
- a magnetic body part arranged around the electron gun so as to be movable in an emission direction of the electron beam, and
- wherein the method comprises controlling a high frequency output from the high frequency circuit to be constant by moving the magnetic body part in an emission direction of the electron beam.
Dependencies are inferred from the claim text.