Decimetric wave band space traveling wave tube

A decimeter band and traveling wave tube technology, applied in the field of traveling wave tubes, can solve the problems of space traveling wave tubes in the decimeter band that have not yet appeared, achieve high linearity requirements, reduce the axial size, and increase the effect of coupling impedance

Active Publication Date: 2020-06-02
NANJING SANLE GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the power levels of mature decimeter-band space traveling wave tubes in China are 134

Method used

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  • Decimetric wave band space traveling wave tube
  • Decimetric wave band space traveling wave tube
  • Decimetric wave band space traveling wave tube

Examples

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Embodiment Construction

[0018] like figure 1 As shown, a space traveling wave tube in the decimeter band includes a focusing electrode control single anode electron gun 1, a slow wave circuit 2 connected to the focusing electrode control single anode electron gun 1, an input energy transmission system 3 connected to the slow wave circuit 2, Output the energy transmission system 4 and the four-stage step-down collector 5 .

[0019] like figure 2 As shown, the focusing pole control single anode electron gun 1 includes a ceramic ring 1-2, an electron gun magnetic shield 1-1 arranged at one end of the ceramic ring 1-2; a tail cap sealing ring arranged at the other end of the ceramic ring 1-2 1-7; the anode sealing ring 1-3 and the anode 1-8 are arranged inside the ceramic ring 1-2 and below the electron gun magnetic screen 1-1, and the anode 1-8 passes through the steps inside the anode sealing ring 1-3 Cooperate and fix by welding; the focusing pole tube 1-4 arranged inside the ceramic ring 1-2 and b...

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PUM

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Abstract

The invention discloses a decimetric wave segment space traveling wave tube. The traveling wave tube comprises a focusing electrode control single-anode electron gun, a slow wave circuit connected with the focusing electrode control single-anode electron gun, and an input energy transmission system, an output energy transmission system and a four-stage depressed collector connected with the slow wave circuit, and the slow wave circuit comprises an input section and an output section connected with the input section; each of the input section and the output section comprises an outer conductor,a pole shoe connected with the outer conductor, a connecting ring arranged between two adjacent pole shoes, a clamping rod mounted in the pole shoes and the connecting ring, and a spiral line mountedin the pole shoes and the connecting ring through the clamping rod; the spiral line is specifically of a dynamic phase velocity gradient structure, and a section of uniform screw pitch is added to the distribution screw pitch of the dynamic phase velocity gradient structure. According to the invention, through phase velocity gradual change and adoption of the screw pitch groove structure, high electronic efficiency is realized, 220W output power and 40% electronic efficiency are realized, harmonic waves are controlled below -18dBc, and the phase shift is controlled below 40 degrees.

Description

technical field [0001] The invention belongs to the traveling wave tube technology, in particular to a decimeter band space traveling wave tube. Background technique [0002] With the continuous breakthrough of the core technology of solid-state devices, the competitiveness of vacuum electronic devices has been significantly improved, especially in the low-frequency band, its small size, light weight, and strong integration stability have more advantages. In-depth research on high-power decimeter-band space traveling wave tubes has not been carried out in China. In order to further improve the competitiveness of space traveling wave tubes and decimeter-band solid-state devices and meet the needs of the rapid development of navigation satellites, it is necessary to develop a decimeter-band space traveling wave with high efficiency, high power, high linearity and low noise. Tube. [0003] At present, the power levels of mature decimeter-band space traveling wave tubes in Chi...

Claims

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Application Information

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IPC IPC(8): H01J25/34H01J23/06H01J23/26H01J23/08
CPCH01J25/34H01J23/06H01J23/26H01J23/08
Inventor 成红霞刘逸群张晓冉吕雪罗敏刘强胥辉
Owner NANJING SANLE GROUP
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