Effective radiator structure of millimeter wave traveling wave tube slow-wave system with wide frequency band and realizing method thereof

A technology of slow wave system and heat dissipation structure, which is applied in the manufacture of electrode systems, manufacture of discharge tubes/lamps, circuit components of time-of-flight electron tubes, etc. It can solve problems such as dielectric clamping rod damage and reduce high-frequency loss , improve heat dissipation capacity, and avoid the effect of process operation

Inactive Publication Date: 2009-09-16
HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional technology, all efforts are made on the tightness of the clamping from the helix to the medium clamping rod, and from the medium clamping rod to the shell, and they are clamped as much as possible, so that the medium is often caused Breakage of the clamping rod

Method used

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  • Effective radiator structure of millimeter wave traveling wave tube slow-wave system with wide frequency band and realizing method thereof
  • Effective radiator structure of millimeter wave traveling wave tube slow-wave system with wide frequency band and realizing method thereof

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Embodiment Construction

[0017] refer to figure 1 , showing a schematic diagram of loading the loading piece 2 and the helix 3 with the medium clamping rod 1 into the shell 4 . In the figure, the scheme of the traditional cylindrical medium clamping rod is changed to a fan-shaped medium clamping rod, that is, the sawtooth with a fan-shaped surface is arranged longitudinally, and a layer of loading sheet in contact with it is added to the periphery of each sawtooth. The loading sheet A heat-conducting composite metal film is plated on the surface in contact with the medium holding rod; a heat-conducting copper film is plated on the contact surface of the loading piece and the tube shell.

[0018] Adjust the structure of the loading piece so that the loading piece not only contacts the back of the clamping rod, but also contacts the two sides of the clamping rod.

[0019] refer to figure 2 , represents the implementation flow chart of the implementation method of the present invention, and the implem...

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Abstract

The invention provides an effective radiator structure of millimeter wave traveling wave tube slow-wave system with wide frequency band and a realizing method thereof which belong to the microwave electronics device field. The structure includes a media clamp rod contacted tightly by a helical line slow-wave structure through the surrounding, and a heat conducting channel composed by the outmost layer pipe case, sawtooth containing sector surface arranges on longitudinal direction of the medium clamp rod, each sawtooth periphery increases a load patch layer contacted with the sawtooth for increasing contact area, a heat conducting compound metal film is plated on a surface between the load patch and the media clamp rod; a heat conducting copper film is plated on a contact surface between the load patch and the pipe case. The realizing method includes flow step operation as follows: A selects the load patch, B selects the media clamp rod. The method can improve heat stability of millimeter wave slow-wave system; uses the clamp rod with less section size, reduces high-frequency consumption in the slow-wave system design and increases the radiator ability.

Description

technical field [0001] The invention belongs to the field of microwave electronic devices, and in particular relates to an effective heat dissipation method for a helical slow wave system in a microwave and millimeter wave traveling wave tube. Background technique [0002] In microwave electronic devices, the limitation of the output power level of millimeter-wave traveling-wave tubes is directly related to the problem of effective heat dissipation of the slow-wave system in the device. Therefore, in the process of developing millimeter-wave traveling-wave tubes, a reliable solution to this problem has been found very important. The complexity of this problem is mainly due to the following factors: on the one hand, the heat loss of the electron beam and the microwave power flowing through the helix slow wave system will cause the temperature of the helix to rise; The conduction in the helix area will also increase the temperature of the helix slow wave system. At the same ...

Claims

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Application Information

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IPC IPC(8): H01J23/26H01J9/00
Inventor 吴华夏贺兆昌程海周秋俊朱刚张文丙袁璟春孙梅林
Owner HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
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