V-waveband traveling-wave tube energy transmission structure and manufacturing method thereof

Abstract

The invention discloses a V-waveband traveling-wave tube energy transmission structure, and belongs to the field of vacuum electron devices. The upper portion of the energy transmission structure is a cap-shaped waveguide flange beneficial to being matched in welding, a waveguide bottom with the bottom in a slope gradual-changed shape and a waveguide cover welded with the waveguide bottom are connected with the waveguide flange, and the lower portion of the waveguide bottom and the lower portion of the waveguide cover are connected with a rod-shaped energy transmission inner conductor and a tee-joint integrated converting head. A manufacturing method comprises the process steps of preliminarily determining the sizes of the parts of the waveguide energy transmission structure, establishing a three-dimensional energy transmission structure model, carrying out simulation and optimization, determining structure parameter sizes, processing and manufacturing all the parts of the energy transmission structure, carrying out deoiling and acid pickling on the parts, carrying out technology assembling on all parts, carrying out hydrogen furnace soldering on silver and copper solders, and measuring the reflected voltage standing wave ratio of the energy transmission structure. The method reduces the reflected voltage standing wave ratio of the energy transmission structure, is beneficial for improving the efficiency of a traveling-wave tube, and the reflected voltage standing wave ratio of the energy transmission structure in a 5GHz working bandwidth is reduced to be lower than 1.5.

Description

technical field [0001] The invention belongs to the field of vacuum electronic devices, and in particular relates to a V-band traveling wave tube energy transmission structure and a manufacturing method thereof. Background technique [0002] V-band (frequency range 50GHz-75GHz) traveling wave tube will be mainly used for interstellar satellite communication. Due to the special requirements of space applications, the space traveling wave tube has to improve the efficiency of the whole tube to save power consumption in space. According to reports, a one percent increase in the overall efficiency of the space traveling wave tube is enough to significantly reduce the energy consumption of the entire space load system, thereby reducing costs, and the economic benefits are as high as tens of millions of dollars. Therefore, it is very important to improve the efficiency of the space traveling wave tube. [0003] An important indicator to ensure the high efficiency of the space tr...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved in the present invention is that the processing of the waveguide bottom of the original structure of the V-band traveling wave tube is difficult, the yield rate is low, the non-integrated design, the assembly coaxiality is low, and the energy transmission power is affected, so it is necessary to redesign a Energy delivery structure to improve manufacturing yield and energy delivery power

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