An energy transition system suitable for multi-beam integrated comb-type slow-wave structures
A technology of slow wave structure and energy transition, which is applied to the circuit components of time-of-flight tubes, can solve the problems of narrow bandwidth and large reflection, and achieve the effects of simple processing, reduced transmission loss, and expanded working bandwidth
Active Publication Date: 2019-05-17
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology
[0004] The purpose of the present invention is to solve the transmission problem of the multi-beam integrated comb-tooth slow-wave structure, overcome the problems of large reflection and narrow bandwidth in the application of the energy transition structure in the prior art to the slow-wave structure of more electron beams, and propose a An energy transition system suitable for multi-beam integrated comb-tooth slow-wave structures; it is composed of the metal column height gradient along the curved surface and the waveguide shell width linear gradient, which meets the development needs of the current terahertz technology for multi-electron beam slow-wave structures. The multi-beam integrated comb-tooth slow wave structure has better coupling
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[0020] In order to facilitate those skilled in the art to understand the technical content of the present invention, the content of the present invention will be further explained below in conjunction with the accompanying drawings.
[0021] Such as figure 1 Shown is a schematic diagram and a two-dimensional cross-sectional view of the energy transition system in the prior art. The energy transition structure in the prior art adopts a stepped gradient of the height of the metal pillars, and a rectangular waveguide is used for the outer shell, which is only suitable for double-row metal pillars and four-row metal pillars. The comb-tooth slow-wave structure faces the problem of large transmission loss.
[0022] Such as figure 2 Shown is the structural schematic diagram of the energy transition system suitable for the multi-beam integrated comb-tooth slow wave structure proposed by this application, including several rows of metal columns distributed longitudinally with a perio...
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The invention discloses an energy transition system suitable for multi-injection integrated comb-tooth slow wave structure, which is applied in the field of vacuum electronics technology. Aiming at the problem of large transmission loss in the existing energy transmission system, the energy transition system of the present invention The system includes several rows of metal pillars distributed vertically at a period p, and the height of each row of metal pillars is arranged to decrease along the longitudinal direction, and the top of the metal pillar is a curved surface, and the curve formed by the curved surface and the height change of the row of metal pillars Part of the curves at the position of the metal pillars coincide; it also includes a waveguide structure that wraps all the metal pillars, and the width of the waveguide structure increases along the direction of decreasing the height of each row of metal pillars. better energy output.
Description
technical field [0001] The invention belongs to the technical field of vacuum electronics, and in particular relates to an energy transition technology of a slow wave structure. Background technique [0002] With the development and utilization of terahertz spectrum resources, terahertz technology has important application value and strategic value in the fields of ultra-high-speed space communication, ultra-high-resolution radar imaging, biological detection, biomedicine, and national security. Potential application value has been widely recognized worldwide. The terahertz traveling wave tube has become a kind of terahertz radiation source that is currently used more because of its frequency bandwidth and high power. The most important structure in the traveling wave tube is its periodic slow wave structure. Characteristics such as power, efficiency and frequency band play a very important role. The slow wave structure of the traditional traveling wave tube includes helix...
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IPC IPC(8): H01J23/28
CPCH01J23/28
Inventor 胡玉禄赵健翔高鸾凤胡权朱小芳杨中海李斌
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA