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Virtual cathode inverted relativistic magnetron

A technology of relativistic magnetron and virtual cathode, applied in the field of L-band virtual cathode inverted relativistic magnetron, can solve the problems of low conversion efficiency of inverted relativistic magnetron, achieve compact structure, improve purity, and solve pulse shortening Effect

Active Publication Date: 2020-11-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In order to overcome the above technical deficiencies, the present invention provides a virtual cathode inverted relativistic magnetron based on the structure of an inverted relativistic magnetron, which solves the problem of low conversion efficiency in the inverted relativistic magnetron

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  • Virtual cathode inverted relativistic magnetron
  • Virtual cathode inverted relativistic magnetron
  • Virtual cathode inverted relativistic magnetron

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Embodiment Construction

[0032] In order to better illustrate the purpose, advantages and technical ideas of the present invention, the present invention will be further elaborated below in conjunction with specific embodiments. It should be noted that the specific examples given below are only for the purpose of explaining the present invention in detail, and do not limit the present invention. image 3 , Figure 4 It is a structural schematic diagram of a virtual cathode inverted relativistic magnetron in this embodiment, including a cathode 1, an anode 2, a reflection cavity 3, a radio frequency excitation structure 4, a circular waveguide output structure 5, and a shell transition section 6.

[0033] The overall shell radius of the relativistic magnetron in this embodiment is 114mm.

[0034] The inner radius of the circular waveguide output structure 5 is 80mm. The length of the shell transition section 6 is 40 mm, and the reflection cavity 3 is arranged in the cathode end 11 with a radius of 85...

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Abstract

The invention discloses a virtual cathode inverted relativistic magnetron, and belongs to the technical field of microwaves. The magnetron comprises a cathode, an anode, a reflection cavity, a radio frequency excitation structure, a circular waveguide output structure and a shell transition section. By exchanging the positions of the anode and the cathode, a fan-shaped cathode unit for generatingelectrons is arranged between the end part of the cathode and the anode blade. According to the fan-shaped cathode unit, the problems of pulse shortening, frequency drift, efficiency reduction and thelike caused by plasmas generated by explosive emission in an interaction region are effectively solved; and meanwhile, pre-clustering of favorable electrons can be realized, so that the energy conversion efficiency and the purity of an excitation mode are improved, and the overall efficiency of the device is remarkably improved.

Description

technical field [0001] The invention belongs to the field of microwave technology, and in particular relates to an L-band virtual cathode inverted relativistic magnetron. Background technique [0002] From the perspective of practical high-power microwave systems, the development of high-power microwave systems mainly focuses on four aspects: (1) Miniaturization and compactness of the system to improve power consumption ratio; (2) High repetition frequency work; (3) The frequency can be tuned; (4) Multi-frequency output. Since its birth, the relativistic magnetron has attracted much attention, and plans have been made to study it. In order to meet the development and application requirements of high-power microwave sources in the future, the development of relativistic magnetrons with high output power, high conversion efficiency, suitable for long pulse and high repetition frequency operation has become one of the key research objects. [0003] In 2007, Daimon et al. of N...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J25/50H01J25/55H01J23/05H01J23/12
CPCH01J23/05H01J23/12H01J25/50H01J25/55
Inventor 程仁杰李天明胡标何朝雄
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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