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Free rectangular spiral slow wave structure for traveling wave tube

A technology of slow wave structure and helical wire, which is applied in the direction of traveling wave tube, cooling method of time-of-flight electronic tube, circuit components of time-of-flight electronic tube, etc., can solve the problems of poor heat dissipation effect and large thermal resistance, etc., and achieve Easy to process, easy to use, and the effect of reducing voids

Active Publication Date: 2020-01-14
徐州博创建设发展集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a free rectangular helical slow-wave structure for traveling wave tubes, which is used to solve the technical problems of excessive thermal resistance and poor heat dissipation effect of the slow-wave structure eliminated in the above-mentioned Beijing technology

Method used

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  • Free rectangular spiral slow wave structure for traveling wave tube
  • Free rectangular spiral slow wave structure for traveling wave tube
  • Free rectangular spiral slow wave structure for traveling wave tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1, please refer to the attached figure 1 , An original slow-wave structure, consisting of a metal tube 1a, a clamping rod 2a and a spiral 3a, and the clamping rod 2a is a thin rectangle, and the horizontal of the metal tube 1a and the spiral 3a The cross-sections are all round.

Embodiment 2

[0030] Example 2, please refer to the attached figure 2 , An original slow-wave structure consisting of a metal tube 1b, a clamping rod 2b and a spiral 3b, and the clamping rod 2b is a T-shaped component, and the metal tube 1b and the spiral 3b The cross-sections are all round.

Embodiment 3

[0031] Example 3, please refer to the attached Figure 3-6 , A free rectangular spiral slow-wave structure for traveling wave tubes, comprising a metal tube 1, the inner wall of the metal tube 1 is fixedly connected to a clamping rod 2, and the other end of the clamping rod 2 is fixedly connected to a spiral wire 3. The spiral wire 3 is composed of a plurality of rectangular coils 31 that are not closed, and the plurality of rectangular coils 31 are connected vertically through a connecting rod 32; between the inner and outer walls of the metal tube 1 is a vacuum chamber 11, and the vacuum chamber The heat dissipation mechanism 4 is provided in the body 11.

[0032] Please refer to the attached image 3 There are four clamping rods 2 in total, and the four clamping rods 2 are respectively fixedly connected to the four surfaces of the spiral wire 3.

[0033] Please refer to the attached image 3 And Figure 5 , The contact area between the clamping rod 2 and the helix 3 is larger th...

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Abstract

The invention provides a free rectangular spiral slow wave structure for a traveling wave tube. The free rectangular spiral slow wave structure includes a metal tube. The inner wall of the metal tubeis fixedly connected to a clamping rod. The other end of the clamping rod is fixedly connected to a spiral line. The spiral line is composed of a plurality of non-closed rectangular coils which are vertically connected through connecting rods. The free rectangular spiral slow wave structure is reasonable in structural design and easy to use. By changing the slow wave structure in the traveling wave tube from a traditional circular spiral line to a rectangular spiral line, the contact area between the clamping rod, the spiral line and the metal tube is increased, the gap of the contact surfaceis reduced, and the thermal resistance is reduced, thereby improving the heat dissipation capacity of the spiral slow wave structure. The improved heat dissipation capacity and multiple fastening patches on the outer wall of the metal tube prevent the deformation of the slow wave structure from affecting the stability of the traveling wave tube. The spiral line is formed by rectangular coils connected vertically, is easy to process and increases the bandwidth of the slow wave structure while improving the working efficiency.

Description

Technical field [0001] The present invention mainly relates to the technical field of electric power equipment, and particularly relates to a free rectangular spiral slow-wave structure for a traveling wave tube. Background technique [0002] The traveling wave tube is a microwave tube that realizes the amplification function by continuously modulating the speed of the electron beam. In the traveling wave tube, the electron beam interacts with the microwave field traveling in the slow wave circuit. In the slow wave circuit of 6 to 40 wavelengths, the electron beam continuously transfers the kinetic energy to the microwave signal field, thereby making the signal Get zoomed in. The traveling wave tube allows electrons to pass through a long slow wave structure. Due to the long acting time, high gain and no resonant cavity, the working bandwidth is greatly increased. The function of the traveling wave tube (TWT) is to amplify the microwave signal; the microwave signal to be ampli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J23/27H01J23/00H01J25/34
CPCH01J23/005H01J23/27H01J25/34
Inventor 闫明伍
Owner 徐州博创建设发展集团有限公司