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A compact high efficiency axial output te 51 mode relativistic magnetron

A relativistic magnetron and axial output technology, which is applied in the field of miniaturized L-band relativistic magnetron, can solve the problems of high-order mode electromagnetic waves that are difficult to use efficiently, and achieve convenient extraction, improve overall efficiency, and reduce space occupation. Effect

Active Publication Date: 2021-02-02
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0007] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides a compact relativistic magnetron with an axial output structure, which solves the problem that the high-order mode electromagnetic waves faced by the axial diffraction output scheme of the magnetron are difficult to use efficiently. Using a ridged circular waveguide structure to transfer the output energy directly from a sunburst relativistic magnetron in TE 51 The pattern is extracted efficiently, and the efficiency can reach 70%

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  • A compact high efficiency axial output te <sub>51</sub> mode relativistic magnetron
  • A compact high efficiency axial output te <sub>51</sub> mode relativistic magnetron
  • A compact high efficiency axial output te <sub>51</sub> mode relativistic magnetron

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Embodiment Construction

[0023] The following embodiments further illustrate the present invention in conjunction with the accompanying drawings.

[0024] Compact High Efficiency Axial Output TE 51 The mode relativistic magnetron is shown in the figure, which consists of a relativistic magnetron 1, a coupling structure 2, and an output structure 3. The relativistic magnetron 1 is axially connected to a coupling structure 2, and the coupling structure 2 is axially connected to an output structure 3.

[0025] The relativistic magnetron 1 is a 10-cavity sunburst relativistic magnetron, which is composed of an anode shell 11 , anode vanes 12 , and ends 13 . Such as Figure 5 As shown, the inner diameter R of the anode vane 12 a =31.8mm, small cavity radius R v1 =64mm, large cavity radius R v2 =82.6mm, opening angle θ of each cavity 1 =20°, the opening angle θ of each anode vane 12 2 = 40°.

[0026] The coupling structure 2 consists of a shell 21 and a transition ridge 22 . Its shell 21 expands ra...

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Abstract

The invention discloses a compact relativistic magnetron with an axial output structure, belonging to the technical field of high-power microwaves. The structure includes a 10-cavity sunburst relativistic magnetron, a coupling structure as a transition structure, and a ridged circular waveguide output structure. The invention solves the problem that the high-order mode electromagnetic waves faced by the axial diffraction output scheme of the magnetron are difficult to be efficiently utilized, and uses a ridged circular waveguide structure to directly transfer the output energy from the sunburst relativistic magnetron to TE 51 The pattern is extracted efficiently, and the efficiency can reach 70%. At the same time, the total volume of the whole system is significantly reduced. Taking the L-band working state as an example, the radius of the circular waveguide is reduced from 250mm in the existing solution to 130mm, and the overall axial length is reduced from 866mm to 490mm.

Description

technical field [0001] The present invention relates to the field of high-power microwave technology, in particular to a miniaturized L-band relativistic magnetron, which is based on the extraction scheme of an axial circular waveguide with ridges, and outputs microwave energy in TE51 mode, so as to further pass through the circular waveguide on the outer wall axially. The slot array radiates energy outward. 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 the birth of relativistic magnetron, it has been attracting much attention, and plans have been made to study it. The initial stage mainly focused on improving the output characteristics of a single relativistic ma...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J23/027H01J23/36H01J25/593
CPCH01J23/027H01J23/36H01J25/593
Inventor 周豪李天明何朝雄
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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