Rhombic meander line slow wave structure loaded on basis of multiple dielectric rod supporting ridges

Abstract

The invention discloses a diamond meander line slow wave structure loaded on the basis of a plurality of dielectric rod supporting ridges, which is characterized in that on the basis of the existing diamond meander line slow wave structure clamped by dielectric rods, a metal ridge is carved on the lower side surface in a metal shell to weaken the dispersion intensity of the slow wave structure, so that the working frequency and the working bandwidth of a traveling wave tube are improved, and the service life of the traveling wave tube is prolonged. Meanwhile, the working voltage can be effectively reduced, and the efficiency of the traveling wave tube is improved; meanwhile, the clamping rods on the two sides of the metal slow-wave line are embedded in the left side and the right side of the electron beam wide edge in the metal shell, and the lower ends of the multiple clamping rods on the bottom side for supporting the metal slow-wave line are clamped in grooves formed between the adjacent metal ridges, so that the structure can be more stable, and the heat dissipation problem of the slow-wave structure is effectively solved. Besides, the phase velocity change of the structure is realized by dividing the thickness of the two bottom side clamping rods located on the outermost sides of the left and right sides of the wide edge of the electron beam into a plurality of sections along the transmission direction of the electron beam and increasing the thickness section by section, so that the backward wave oscillation is inhibited, and the processing difficulty is reduced.

Description

technical field [0001] The invention belongs to the technical field of strip-shaped injection plane slow-wave structures, and more specifically relates to a rhombic zigzag-line slow-wave structure loaded on the basis of multiple dielectric rod support ridges, which is used for traveling wave tube amplifiers. Background technique [0002] Traveling wave tube is an important vacuum electronic device, which has a wide range of applications in various fields. The core part of the traveling wave tube is the slow wave structure. There are many types of slow wave structures, such as helix, coupled cavity, folded waveguide, interleaved double gate, microstrip stripline and its deformation structure. Among them, the microstrip stripline structure has attracted much attention due to its simple structure, easy integration, easy processing, and ability to accommodate sheet electron beams. [0003] figure 1 It is a structural schematic diagram of a specific embodiment of the existing ...

AI Technical Summary

Problems solved by technology

However, the process of designing stripline lines with different period lengths is cumbersome and requires a lot of work

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