Permanent-magnet packaging relativistic magnetron

A relativistic magnetron and permanent magnet packaging technology, which is applied in the field of high-power microwaves, can solve the problems of large size of the diffraction output magnetron gradual change output port and increase the difficulty of magnet miniaturization design, so as to achieve a compact structure of permanent magnet packaging, The effect of increasing the uniform zone size

Active Publication Date: 2015-10-21
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

The slight disadvantage is that in terms of size, the gradient output port of the diffraction output magnetron is relatively large, which increases the difficulty of magnet miniaturization design

Method used

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  • Permanent-magnet packaging relativistic magnetron
  • Permanent-magnet packaging relativistic magnetron
  • Permanent-magnet packaging relativistic magnetron

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Experimental program
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Embodiment Construction

[0026] The permanent magnet packaging relativistic magnetron of the present invention is composed of an external permanent magnet, an embedded permanent magnet and a relativistic magnetron. The external permanent magnets and the embedded permanent magnets are made of hard magnetic materials with high residual magnetic induction intensity and high coercive force.

[0027] The external permanent magnets are two coaxial structural magnets of the same size, which surround the outside of the relativistic magnetron, and their inner diameter is equal to the outer diameter of the relativistic magnetron. The axial position of is the center of the interaction region of the relativistic magnetron.

[0028] The embedded permanent magnets are also two coaxial magnetic blocks of the same size, which are small in size and located inside the relativistic magnetron. The outer diameter is equal to the anode outer diameter of the relativistic magnetron, and the inner diameter is larger than that...

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Abstract

The invention discloses a permanent-magnet packaging relativistic magnetron, which is of a whole-cavity extraction axial output structure composed of a cathode outer cylinder, an anode outer cylinder and an axial extraction structure. The permanent-magnet packaging relativistic magnetron comprises a plurality of annular permanent magnets, wherein a part of the permanent magnets sleeve the anode outer cylinder, the other part of the permanent magnets sleeve a cathode in the anode outer cylinder, and the permanent magnets and the magnetron are coaxially arranged. The permanent-magnet packaging relativistic magnetron adopts the internal embedding and external loading combined method for arranging the permanent magnets, enlarges size of the uniform region of the permanent magnets, a part of the permanent magnets are embedded in the interior of the magnetron, the internal space of the magnetron is fully utilized, so that the whole permanent-magnet packaging structure is compact. The permanent-magnet packaging structure can provide the required uniform magnetic field for the relativistic magnetron stably for a long time, so that the relativistic magnetron operates and generates gigawatt-level high-power microwave output, and can be well applied to compact-structured high-power microwave systems running at repeated frequency.

Description

technical field [0001] The invention belongs to the technical field of high-power microwaves, and in particular relates to a relativistic magnetron with permanent magnet packaging. The invention can be applied to a microwave generation system in the technical field of high-power microwaves. Background technique [0002] Since the 1970s, with the advancement of plasma technology, pulse power technology and the development of computer particle simulation software, high-power microwave technology has developed rapidly, especially in the development of high-power microwave sources. Great progress has been made , There have been many different types of high power microwave sources. The working principle of most of the high-power microwave sources is to use the interaction between the relativistic electron beam and the microwave cavity to generate high-power microwave output. Generally speaking, an external magnetic field is required to confine the electron beam transmission. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J25/50H01J23/02
Inventor 许州王冬马弘舸徐莎秦奋张勇
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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