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Helix high-frequency structure and travelling wave tube comprising same

A high-frequency structure and helical technology, applied in the field of vacuum electronic devices, can solve the problems of large second harmonic and low power in high-end frequency bands, so as to suppress the second harmonic, improve the output power of middle and high-end frequency bands, and improve the operability. good effect

Active Publication Date: 2018-09-04
NO 12 RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, an object of the present invention is to provide a helical high-frequency structure, which can solve the problems of low high-end frequency band power and large second harmonic in the existing traveling wave tube high-frequency structure

Method used

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  • Helix high-frequency structure and travelling wave tube comprising same
  • Helix high-frequency structure and travelling wave tube comprising same
  • Helix high-frequency structure and travelling wave tube comprising same

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Embodiment Construction

[0037] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0038] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details.

[0039] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same refe...

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PUM

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Abstract

The invention discloses a helix high-frequency structure, which comprises a tube housing and a helix fixedly arranged in the tube housing through a plurality of clamping rods. In the axial direction of the high-frequency structure, the high-frequency structure comprises a loading structure having at least two sections of loading sections in different shapes, wherein at least one section of loadingsection comprises a plurality of metal loadings formed on the inner wall of the tube housing. The high-frequency structure can optimize required different parameters in a focus manner on different loading structures; on one hand, coupling impedance is improved, interaction efficiency is enhanced, and output power of a high-end frequency band is enlarged; and on the other hand, a formed normal dispersion curve enables the low-end frequency not to be entirely in an optimal interaction region, so that second harmonic corresponding to the low frequency end and an electron beam cannot synchronize,and the second harmonic is suppressed.

Description

technical field [0001] The invention relates to the field of vacuum electronic devices, in particular to a helical high-frequency structure and a traveling wave tube comprising the high-frequency structure. Background technique [0002] Traveling wave tube is a kind of electronic device widely used in national defense and national economy, with good power, frequency band and gain performance. As the core components of distributed interaction devices such as traveling wave tubes and return wave oscillators, high-frequency structures can reduce the phase velocity of electromagnetic waves and enable effective interaction between electrons and electromagnetic waves. Therefore, the shape and size of the high-frequency structure determine the distribution phase propagation velocity of the high-frequency field, thereby determining the interaction effect between the electron beam and the wave, and has a decisive impact on the performance of the traveling wave tube. [0003] Such as...

Claims

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Application Information

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IPC IPC(8): H01J23/27H01J25/34
CPCH01J23/27H01J25/34
Inventor 焦江娜邱立王严梅张磊费娜王月芳赵长江
Owner NO 12 RES INST OF CETC
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