A Virtual Cathode Inverted Relativistic Magnetron

A relativistic magnetron and virtual cathode technology, applied in the field of L-band virtual cathode inverted relativistic magnetron, can solve the problem of low conversion efficiency of inverted relativistic magnetron, and achieve compact structure, low guiding magnetic field, and improved purity. Effect

Active Publication Date: 2021-09-24
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
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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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  • A Virtual Cathode Inverted Relativistic Magnetron
  • A Virtual Cathode Inverted Relativistic Magnetron
  • A 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, which belongs to the field of microwave technology. The magnetron includes a cathode, an anode, a reflection cavity, a radio frequency excitation structure, a circular waveguide output structure, and a shell transition section. In the invention, by exchanging the positions of the anode and the cathode, fan-shaped cathode units for generating electrons are arranged between the cathode end and the anode blades. The fan-shaped cathode unit of the present invention effectively solves the problems of pulse shortening, frequency drift, and efficiency reduction caused by the plasma generated by explosive emission in the interaction area, and can also realize the pre-clustering of favorable electrons at the same time, thereby improving The energy conversion efficiency and the purity of the excitation mode significantly improve the overall efficiency of the device.

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 Patents(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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