A dome-trapezoidal interleaved double-grid slow-wave structure

A slow-wave structure and trapezoidal technology, which is applied to the circuit components of the time-of-flight tube, can solve the problems of small output power, long saturation interaction length, and low interaction efficiency of traveling wave tubes, so as to improve output power, Increased Interaction Capability, Effect of High Coupling Impedance Values

Active Publication Date: 2021-07-13
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the electric field strength of this slow-wave structure in the direction of electromagnetic wave transmission is relatively weak, so its coupling impedance is small, which leads to the application of traveling wave tubes with low output power, low interaction efficiency, and low gain. and long saturated interaction lengths

Method used

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  • A dome-trapezoidal interleaved double-grid slow-wave structure
  • A dome-trapezoidal interleaved double-grid slow-wave structure
  • A dome-trapezoidal interleaved double-grid slow-wave structure

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Embodiment 1

[0027] Such as image 3 with Figure 4 As shown, the dome-trapezoid interleaved double-grid slow-wave structure provided in Embodiment 1 includes an upper grid part and a lower grid part respectively arranged on the upper and lower sides, and the upper grid part and the lower grid part are both arranged There are ups and downs 1 that extend in the lateral direction and periodically fluctuate up and down along the lateral direction. The ups and downs 1 on the upper and lower sides are staggered by half the ups and downs period, and the width of the ups and downs 1 on both sides is a, while the up and down sides The distance between the corresponding positions of the part 1 is b, the lowest end of the upper side undulating part 1 is higher than the highest end of the lower side undulating part 1, and the height difference is hb, so that a structure with a height of hb and a width of a is formed between the two. The strip-shaped electron injection channel 5, the undulating part ...

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Abstract

The invention discloses a dome-trapezoid interlaced double-gate slow-wave structure, which belongs to the technical field of electric vacuum devices, and comprises two undulating parts arranged on the upper and lower sides. Consisting of the top, several trapezoidal parts are arranged at intervals along the horizontal direction, and the adjacent trapezoidal parts transition through the circular groove part. The upper bottoms of the isosceles trapezoids on both sides are all set on the side close to the belt-shaped electron injection channel, the domed tops are connected to the upper bottoms of the isosceles trapezoids, and the lower bottoms of the two adjacent trapezoids in the transverse direction pass through two The circular groove between the two transitions. The dome-trapezoid interleaved double-grid slow-wave structure provided by the present invention has a flatter dispersion curve while increasing the coupling impedance, thus effectively overcoming the defects of the existing sinusoidal waveguide slow-wave structure.

Description

technical field [0001] The invention relates to the technical field of electric vacuum devices, in particular to a dome-trapezoid interlaced double-grid slow-wave structure. Background technique [0002] An electric vacuum device is a device that converts the kinetic energy of electrons into electromagnetic wave energy. The slow wave structure is its main transducing structure. In the slow wave structure, the electron beam interacts with the electromagnetic wave to amplify the electromagnetic wave signal. [0003] There are many kinds of slow-wave structures, such as folded waveguide structure, sinusoidal waveguide structure, rectangular interleaved double-grid structure, etc. Among these slow-wave structures, the working bandwidth of the folded waveguide slow-wave structure is relatively wide, but its electron injection The processing of the channel is difficult, the transmission loss in the terahertz frequency band is large, and the processing is relatively difficult; the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J23/24
CPCH01J23/24
Inventor 蒋艺雷文强胡鹏黄银虎宋睿曾造金马乔生马国武陈洪斌金晓
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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