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A slow wave structure for high power output of traveling wave tube

A slow-wave structure and high-power technology, which is applied in the field of slow-wave structures, can solve problems such as hindering the development of helical traveling wave tubes, complex structures, and difficult processing, and achieve high-power output improvement, expanded application range, and easy processing. Effect

Inactive Publication Date: 2018-08-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small size and complex structure of the slow wave structure of the helical traveling wave tube, it is difficult to process, which hinders the development of the helical traveling wave tube in the military and aerospace fields

Method used

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  • A slow wave structure for high power output of traveling wave tube
  • A slow wave structure for high power output of traveling wave tube
  • A slow wave structure for high power output of traveling wave tube

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Experimental program
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Embodiment Construction

[0018] This embodiment is a design and application of a slow wave structure for high power output of a traveling wave tube in the Ka band.

[0019] The slow wave structure described in this embodiment includes a cylindrical metal shell, a number of concentric open metal rings arranged in the shell, and a support structure for fixing the metal rings. The support structures of two adjacent metal rings are arranged symmetrically. on both sides.

[0020] The material of the supporting structure is metallic copper, its cross section is fan-shaped, the thickness is 0.25mm, and the angle is 18°. The inner diameter of the metal case is 0.80mm and the thickness is 0.20mm. The material of the concentric metal ring is metal copper, the inner diameter is 0.30mm, the thickness is 0.25mm, the distance between the two concentric metal rings is 0.30mm, the distance between the metal ring and the inner wall of the shell is 0.15mm, the metal ring The cross section of the ring opening is fan-s...

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Abstract

The invention discloses a slow-wave structure used for high-power output of a traveling wave tube, which belongs to the field of microwave electric vacuum. The slow-wave structure includes a cylindrical metal shell, several metal rings with concentric openings arranged in the shell, and a metal support structure for fixing the metal rings. The support structure of the slow wave structure is made of metal material, which can play a heat dissipation function to a certain extent. In the working frequency range, the coupling impedance curve of this slow-wave structure is much larger than that of the helical slow-wave structure, and it can interact and exchange energy better and effectively. And to a certain extent, it solves the problem that the coupling impedance of the general slow wave structure is too small. The slow wave structure of the present invention is easy to process, and well improves the problem of high power output of the traveling wave tube with wide bandwidth, which expands the application range of the traveling wave tube.

Description

technical field [0001] The invention belongs to the field of microwave electric vacuum, and in particular relates to a slow wave structure used for high power output of a traveling wave tube. Background technique [0002] Traveling wave tube is a very important vacuum electron tube in the field of microwave technology. Because traveling wave tubes have excellent characteristics such as high power, wide frequency band, large dynamic range, low noise, and high gain, they are widely used in various electronic equipment such as radar, communication, television, broadcasting, telemetry, and electronic countermeasures. [0003] At present, in order to meet the requirements of different applications, traveling wave tubes have developed into a large family, which is divided into slow wave structures. There are two types of traveling wave tubes that have been developed: helical traveling wave tubes - this type of tube traveling wave tubes The bandwidth is the widest. Due to the limi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J23/42H01J23/00
CPCH01J23/005H01J23/42
Inventor 刘鹏飞高茂原路志刚宫玉彬
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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