Dual-mode multi-beam electronic gun for dual-mode traveling wave tube and method for controlling dual-mode multi-beam electronic gun

A dual-mode traveling wave tube and dual-mode technology, applied to the electron/ion gun of the time-of-flight electron tube, the cathode of the time-of-flight electron tube, etc., can solve the problems of restricting technological development and not fully complying with the dual-mode electron gun , to achieve the effect of simplified process, easy processing and simple process structure

Active Publication Date: 2013-02-27
HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, there is no dual-mode electron gun that fully meets the above requirements in the prior art, which limits the development of technology

Method used

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  • Dual-mode multi-beam electronic gun for dual-mode traveling wave tube and method for controlling dual-mode multi-beam electronic gun
  • Dual-mode multi-beam electronic gun for dual-mode traveling wave tube and method for controlling dual-mode multi-beam electronic gun
  • Dual-mode multi-beam electronic gun for dual-mode traveling wave tube and method for controlling dual-mode multi-beam electronic gun

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Embodiment Construction

[0034] Depend on Figure 1-12 Combining the shown structures, it can be seen that this dual-mode multi-injection electron gun for dual-mode traveling wave tubes includes sequentially arranged cathodes 6, shadow grids 7, inner grids 8, outer grids 9 and anodes 10; the cathode 6 includes cathode molybdenum Cylinder 1, the cathode molybdenum cylinder 1 is divided into two parts along the axis of the cathode molybdenum cylinder 1, the two parts are separated by insulating ceramics 4, a cathode sponge 2 is installed in one part, and a filament potting is installed in the other part An insulator 3, and a filament potting insulator 3 is provided with a filament 5; the end face of the cathode molybdenum cylinder 1 is provided with several holes, the inner grid 8 controls the electron beam in a part of the holes, and the outer grid 9 controls the electron beam in the remaining holes. The electron beam realizes dual-mode operation.

[0035] The diameter of the holes on the end surface ...

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Abstract

The invention discloses a dual-mode multi-beam electronic gun for a dual-mode traveling wave tube and a method for controlling the dual-mode multi-beam electronic gun. The dual-mode multi-beam electronic gun comprises a cathode, a shade gate, an internal grid, an external grid and an anode, which are arranged in sequence, wherein the cathode comprises a cathode molybdenum tube, the inside of which is divided into two parts along the axis of the cathode molybdenum tube; the two parts are separated by insulating ceramic; a cathode sponge body is mounted in one part, and a filament filling and sealing insulator is mounted in the other part and is internally provided with a filament; the end face of the cathode molybdenum tube is provided with a plurality of holes; the internal grid controls the electronic beams in partial holes, and the external grid controls the electronic beams in the rest holes so as to implement dual-mode operation. According to the dual-mode multi-beam electronic gun and the method, a high-mode operation state and a low-mode operation state can be provided, and the control voltage is consistent, so that the electronic beams in two modes can be focused by the same magnetic field.

Description

technical field [0001] The invention relates to the field of microwave vacuum devices, in particular to a dual-mode multi-injection electron gun for a dual-mode traveling wave tube and a control method thereof. Background technique [0002] In the field of microwave vacuum devices, traveling wave tubes are the most widely used devices. Among them, the dual-mode TWT can work in two modes, high and low. In high working mode, the cathode peak current is large, the pulse output power is high, and the working ratio is small, and it is used as a radar with the main function; in the low working mode, the cathode peak current is small, the pulse output power is small, and the working ratio is large, and it can be used as guidance, interference and other functions. Both functions are accomplished using one traveling wave tube. [0003] The dual-mode TWT requires the average power and average cathode current of the two working modes to be equivalent, and can be powered by the same s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J23/06H01J23/04
Inventor 沈旭东吴磊王昊
Owner HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
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