Novel coaxial plugboard high-order mode exciter

A high-order mode and exciter technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve the problems of low conversion efficiency and mode purity, complex structure, and high assembly accuracy requirements, and achieve compact structure, high conversion efficiency, Reduce the effect of field strength concentration

Inactive Publication Date: 2018-11-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0004] Aiming at the problems of the existing high-order mode exciter with complex structure, high assembly precision requirements, low conversion efficiency and mode purity, the present invention proposes a new type of coaxial plug-in board high-order exciter

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  • Novel coaxial plugboard high-order mode exciter
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  • Novel coaxial plugboard high-order mode exciter

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Embodiment Construction

[0029] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] A new type of coaxial board high-order mode exciter, see figure 1 As shown, the high-order mode exciter includes four parts connected in sequence along the axial direction, the first part is the coaxial TEM-sector coaxial TE 10 Power splitter, the second part is sector coaxial TE 10 -Coaxial TE 61 Mode Converter, the third part is coaxial TE 61 -Circular waveguide TE 61 Mode Converters, Part IV Circular Waveguide TE 61 -Circular waveguide TE 62 Mode changer.

[0031] (1) The first part is coaxial TEM-sector coaxial TE 10 Power splitter, which divides the coaxial waveguide TEM mode with an outer diameter of 40mm and an inner diameter of 35mm into 6 fan-shaped coaxial TE modes along the axial direction 10 mold. see...

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Abstract

The invention discloses a novel coaxial plugboard high-order mode exciter and belongs to the field of mode exciters. The novel coaxial plugboard high-order mode exciter comprises a coaxial TEM (transverse electric and magnetic field)-fan-shaped coaxial TE10 power divider, a fan-shaped coaxial TE10-coaxial TE61 mode converter, a coaxial TE61-circular waveguide TE61 mode converter and a circular waveguide TE61-circular waveguide TE62 mode converter. A mode conversion process includes: TEM-fan-shaped coaxial TE10-fan-shaped coaxial TE20-coaxial TE61-circular TE61-circular TE62. A wave beating coupling method of cosine metal walls is utilized to realize mode conversion from fan-shaped coaxial TE10 to coaxial TE61, small reflection, high conversion efficiency and large bandwidth are realized, and the novel coaxial plugboard high-order mode exciter is compact in integral structure, capable of inhibiting parasitic modes by every part, high in conversion efficiency and mode purity and promising in application prospect.

Description

technical field [0001] The invention belongs to the field of mode exciters, and in particular relates to a novel coaxial board high-order mode exciter. Background technique [0002] As a new type of electric vacuum device, the gyrotron has very important applications in thermonuclear fusion control, high-power electromagnetic heating and millimeter-wave radar. The working mode in the gyrotron is usually a high-order side corridor mode or a high-order bulk mode. Such high-order modes are not convenient for direct use and transmission. Quasi-optical mode converters are usually used to convert them into low-order modes that are easy to use and transmit. In order to accurately test the performance of the quasi-optical mode converter, it is necessary to design a high-purity circularly polarized high-order mode exciter to simulate the output mode of the gyrotron. [0003] At present, there are mainly two types of high-order exciters. The first type uses a waveguide structure. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/16
CPCH01P1/16
Inventor 李浩李殿亮胡标汪海洋李天明周翼鸿
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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