Novel slow wave structure based on staggered double gates and zigzag waveguide
A technology of zigzag waveguide and slow wave structure, which is applied to the circuit components of transit time electron tubes and other directions to achieve the effects of low loss, low transmission loss and high transmission efficiency
Active Publication Date: 2022-07-22
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology
Scholars at home and abroad research and design new slow-wave structures, most of them only optimize from the interleaved double-grid slow-wave structure or the meander waveguide slow-wave structure, and have not done a fusion design of the interleaved double-grid slow-wave structure and the meander waveguide slow-wave structure
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[0036] Example: Novel slow-wave structures based on staggered double gates and meandering waveguides, such as Figure 4 As shown, it includes an electron injection channel 3 and an upper row grid 1 and a lower row grid 2 arranged longitudinally staggered. The corresponding meandering waveguide segments 5 are arranged tangentially; the electron injection channel 3 penetrates the rectangular waveguide segments 4 in the upper grid 1 and the lower grid 2 in the longitudinal direction.
[0037] like image 3 and Figure 4 As shown, there is a distance between the upper row grid 1 and the lower row grid 2, the side walls of the rectangular waveguide segment 4 and the curved surface of the meandering waveguide segment 5 in the upper row grid 1 and the rectangular waveguide side walls and the meandering waveguide segment 5 in the lower row grid 2 The waveguide segment 5 is tangent, and the vacuum part enclosed by the upper grid 1, the lower grid 2 and the gap between them divides th...
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The invention discloses a novel slow wave structure based on staggered double gates and zigzag waveguides, and relates to the technical field of microwave vacuum electronics, and the key points of the technical scheme are that the novel slow wave structure comprises an electron beam channel, and an upper gate and a lower gate which are longitudinally arranged in a staggered manner, and each of the upper gate and the lower gate comprises a rectangular waveguide section and a zigzag waveguide section; the rectangular waveguide sections are tangent to the corresponding zigzag waveguide sections; and the electron beam channel penetrates through the rectangular waveguide sections in the upper grid and the lower grid along the longitudinal direction. The zigzag waveguide near the position orthogonal to an electron beam is replaced by the rectangular waveguide, a conventional staggered double-gate structure and a conventional zigzag waveguide structure are designed in a fused mode, and performance improvement of wider working frequency band, higher coupling impedance, higher electronic efficiency and lower loss is achieved.
Description
technical field [0001] The present invention relates to the technical field of microwave vacuum electronics, and more particularly, to a novel slow-wave structure based on staggered double gratings and meandering waveguides. Background technique [0002] Traveling wave tube is one of the most commonly used power amplifiers, and it is widely used in communication, radar, electronic countermeasures and other fields. The slow-wave structure is the core part of the traveling wave tube, and its performance directly determines the performance of the whole tube. The slow-wave structure is a periodic structure. Due to the wave propagating in the periodic system, the structure has spatial periodicity, and the field distribution of the wave presents an inharmonic periodicity, which can be divided into innumerable spatial harmonics. The slow-wave structure reduces the phase velocity of the electromagnetic wave. When a certain spatial harmonic of the electromagnetic wave and the electr...
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IPC IPC(8): H01J23/24
CPCH01J23/24Y02D30/70
Inventor 段景瑞路志刚朱俊宛刘子璇钟宝辉王泽川陈海峰
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA