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A Segmented Helical Rectangular Folded Waveguide

A folded waveguide and helix technology, applied in the directions of waveguides, waveguide-type devices, circuits, etc., can solve the problems of beam-wave interaction efficiency, relative bandwidth limitation of folded waveguide traveling wave tubes, and overall performance degradation of devices, and achieve electron beam energy. widening effect

Active Publication Date: 2020-01-07
成都赛纳为特科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This imposes a severe limitation on the relative bandwidth of the folded waveguide TWT
Another problem with ordinary folded waveguide traveling wave tubes is the efficiency of the beam-wave interaction due to the single e-book
At home and abroad, there are plans to adopt 2 to 3 electron beams, but compared with the main electron beam located on the central axis of the structure, the phases of the electromagnetic waves experienced by other electron beams will have a certain degree of mismatch, resulting in a decline in the overall performance of the device

Method used

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  • A Segmented Helical Rectangular Folded Waveguide
  • A Segmented Helical Rectangular Folded Waveguide
  • A Segmented Helical Rectangular Folded Waveguide

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Embodiment 1

[0023] Such as Figure 1-3 shown.

[0024] Segmented helical rectangular folded waveguide, including 4 shortest periodic waveguide structures and input and output waveguides 1 sequentially connected and repeated along the Z-axis direction, each shortest periodic waveguide structure includes at least 4 right-angle bend waveguides 4 and at least 4 waveguide segments 2. The side of the right-angle bend waveguide is in the shape of a right-angle triangular plate; a stepped convex structure is provided on the hypotenuse of the right-angle bend waveguide; the right angles of the right-angle bend waveguide 4 point to the direction of point O, and the right-angle bend waveguide 4 along The helical line of the axis is rotated sequentially; and a waveguide section is located between any two adjacent right-angle bend waveguides 4; The ports are staggered in the Z-axis direction. Preferably, the sides of all right-angle bend waveguides facing the YZ plane are parallel to each other and ...

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Abstract

The invention discloses a rectangular foldable waveguide for a segmented spiral line. The rectangular foldable waveguide comprises at least two shortest waveguide periodic structures which are connected in sequence in a Z-axis direction, wherein the rectangular foldable waveguide for the segmented spiral line comprises multiple right-angle bending waveguides and direct waveguides. Compared with the conventional foldable waveguide, when the rectangular foldable waveguide is applied to a traveling wave tube and other linear electromagnetic vacuum devise, the problem that a 180-degree phase difference exists due to the right-angle bending waveguide when an electron beam passes through the conventional slow waveguide is overcome; therefore, the expansion of the operating bandwidth of the electromagnetic wave source can be promoted; meanwhile, the number of the linear electron beam channels can be increased to be two or more, so that the interaction efficiency of the beam waves can be remarkably improved; in addition, by adoption of the rectangular foldable waveguide for the segmented spiral line, the compact type delay lines with various kinds of waveguides, such as single-ridge waveguide or double-ridge waveguide can be realized; particularly, a slow-wave structure and the like of a compact type traveling wave tube amplifier can be realized; and furthermore, the rectangular foldable waveguide is applied to various kinds of communications with the frequency bands of microwave, millimeter wave and terahertz wave, and radar systems.

Description

technical field [0001] The invention relates to an electromagnetic wave transmission line. Specifically, it relates to a compact segmented helical rectangular folded waveguide for signal delay or slow wave structure of electromagnetic wave source. Background technique [0002] The first important application of folded transmission lines was as a signal delay line, used for signal delay in systems such as radar. A second important application of folded transmission lines is as a slow wave structure in traveling wave tube amplifiers. At this time, the electron beam propagates along a certain straight electron channel, while the electromagnetic wave propagates along the bent transmission line. Although the phase velocity of the electromagnetic wave propagating in the folded transmission line is very fast, which can be close to the speed of light, or even greater than the speed of light, in the linear electron channel, the phase velocity of the electromagnetic wave felt by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P3/123
CPCH01P3/123
Inventor 王清源
Owner 成都赛纳为特科技有限公司
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