X-waveband high-impedance relativity theory klystron amplifier adopting annular beam cold cathode

A high-impedance, relativistic technology, applied in the direction of klystrons, cathodes of transit-time electron tubes, electron tubes with velocity/density modulation electron flow, etc., can solve unfavorable processing and experiments, and it is difficult to produce high-impedance rings of kΩ level Electron beams, large and complex systems, etc., to achieve the effect of light weight, low requirements for beam uniformity, and small volume

Active Publication Date: 2016-07-27
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: overcoming the need for additional heating equipment for high-impedance RKA electron optical systems based on hot cathodes, the large and complex system is not conduc

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  • X-waveband high-impedance relativity theory klystron amplifier adopting annular beam cold cathode
  • X-waveband high-impedance relativity theory klystron amplifier adopting annular beam cold cathode
  • X-waveband high-impedance relativity theory klystron amplifier adopting annular beam cold cathode

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Embodiment Construction

[0036] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0037] image 3 It is a schematic diagram of the overall structure of the X-band high-impedance RKA system using a ring-beam cold cathode in the present invention. Tube 7, coaxial extraction structure 8, collector pole 9, support rod 10 and permanent magnetic field 11; the drift tube 7 is composed of No. 1 drift tube 7a, No. 2 drift tube 7b, No. 3 drift tube 7c, and No. 4 drift tube tube 7d, the resonance cavity 6 is composed of an input cavity 6a, a gain cavity 6b, a final cavity 6c, and an output cavity 6d, and the high-frequency signal injection port 4, injection waveguide 5, resonance cavity 6, drift tube 7, and The shaft extraction structure 8, the collector pole 9, and the support rod 10 form a high-frequency structure, and the entire amplifier is rotationally symmetrical about the central axis. The permanent magnetic field 11 is ins...

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Abstract

The invention relates to a microwave source apparatus in the technical field of high-power microwaves, in particular an X-waveband high-impedance relativity theory klystron amplifier adopting an annular beam cold cathode. The X-waveband high-impedance relativity theory klystron amplifier is composed of a cathode, a cathode shielding ring, an anode outer cylinder, a high frequency signal injection port, injected waveguide, a resonant cavity, a drift tube, a coaxial extracting structure, a collector, a studdle and a permanent magnetic field; the disadvantages that the traditional high-impedance RKA electronic optical system based on a hot cathode needs an extra heating device and is large in energy consumption, and the system is huge, complex and bad for processing and experimenting are overcome, and the traditional foilless diode is hard to produce the high-impedance annular electronic beam in kOmega level; an annular beam cold cathode with the shielding ring is designed to apply to the X-waveband high-impedance RKA adopting the permanent magnet package, so that the electronic optical system of the microwave tube is simple and compact in structure and easy to process and experiment.

Description

technical field [0001] The invention relates to a microwave source device in the technical field of high-power microwave (HPM), in particular to an X-band high-impedance relativistic klystron amplifier (Relativtistic Klystron Amplifier, RKA) using a ring-beam cold cathode. Background technique [0002] In recent years, the attractive prospect of high-power microwave (HPM) (according to the agreement of Benford and Swegle, high-power microwave refers to electromagnetic waves with a peak power greater than 100MW and a frequency between 1 and 300GHz) in many fields has attracted widespread attention in many countries. Attention and heavy research investment. As the core device of the high-power microwave system, the high-power microwave source uses the electron beam emitted by the cathode to interact with the resonant mode of the internal cavity of the device, and then radiates high-power microwaves. In order to further meet the application requirements, it is one of the most ...

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Application Information

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IPC IPC(8): H01J23/04H01J23/00H01J25/10
CPCH01J23/00H01J23/04H01J25/10
Inventor 朱丹妮张军钟辉煌巨金川李伟杨建华袁成卫靳振兴张建德
Owner NAT UNIV OF DEFENSE TECH
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