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Structure and manufacturing method of terahertz cascaded traveling-wave tube frequency multiplier

Active Publication Date: 2013-08-14
NO 12 RES INST OF CETC
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  • Description
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  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is that in the prior art, the working state of ordinary traveling wave tubes only considers increasing the output power of the fundamental wave, but only suppresses the harmonic power mainly composed of the second harmonic. Traditional devices The unfavorable factor of harmonics must be avoided to destroy the performance of the traveling wave tube

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  • Structure and manufacturing method of terahertz cascaded traveling-wave tube frequency multiplier
  • Structure and manufacturing method of terahertz cascaded traveling-wave tube frequency multiplier
  • Structure and manufacturing method of terahertz cascaded traveling-wave tube frequency multiplier

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Embodiment Construction

[0026] refer to figure 1 , showing a schematic diagram of the structure of an ordinary traveling wave tube traditionally used. It is a traveling wave tube in a vacuum-sealed state. 1 is the electron gun at the end. The wave tube high-frequency system includes an input coupling structure 2, a slow wave structure 3, a magnetic focusing system 4, a centralized attenuator 5 and an output coupling structure 6, and a collecting pole 7 is arranged at the end of the traveling wave tube.

[0027] refer to figure 2 , showing the structural diagram of the terahertz cascaded traveling wave tube frequency doubling device in this design. Compared with the known technology, in this technical solution, 1 is the electron gun at the end, and the component contains a cathode, a focusing electrode and an anode, and the outlet of the electron gun is set There is a slow wave structure 3, including the input slow wave structure and the output slow wave structure to jointly control the amount of ha...

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Abstract

A structure and a manufacturing method of a terahertz cascaded traveling-wave tube (TWT) frequency multiplier belong to the field of vacuum electron devices. Among a slow wave structure part and a collector outputted by the TWT, at least one to M N harmonic systems (wherein M and N are to 2, 3...) are cascaded. Design is performed as per steps, and the high-frequency system of the traveling-wave tube controls harmonic information in an electron beam after interaction; and the cascaded harmonic systems realize harmonic wave power maximization and frequency response optimization and output harmonic waves as practical information. On the basis of the nonlinear modulation of electromagnetic wave to the electron beam, the harmonic information in the electron beam is optimized after interaction of the traveling-wave tube, and full energy exchange is performed by utilizing the cascaded harmonic systems so as to realize frequency multiplication amplification and output.

Description

technical field [0001] The invention belongs to the field of vacuum electronic devices, and in particular relates to a terahertz cascaded traveling wave tube frequency multiplication device when the frequency enters the terahertz frequency band. Background technique [0002] Terahertz (THz) waves refer to electromagnetic waves with a frequency range of 100GHz-3000GHz, which have many potential applications in military, medical, industrial and other fields. The research and development of terahertz sources is the primary task in terahertz science and technology, and it is the premise and key to carry out terahertz applied research. The remarkable characteristics of high frequency and high power of vacuum electronic devices indicate that they have the ability to fill the terahertz gap. [0003] Traveling wave tube (TWT) is an important vacuum electronic device. figure 1 It is a structural schematic diagram of an ordinary traveling wave tube in the prior art. It can be seen f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J25/34H01J23/24G02F1/37
Inventor 蔡军冯进军邬显平
Owner NO 12 RES INST OF CETC
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