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High-order asymmetric body mode cyclotron oscillation tube quasi-optical mode transformer

A mode conversion and asymmetric technology, applied in waveguide devices, electrical components, circuits, etc., can solve the problems of large diffraction loss, difficult processing, serious mode competition, etc., to reduce energy loss and improve the efficiency of the whole tube.

Inactive Publication Date: 2016-02-24
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

When the waveguide mode converter is used to reduce the order of the high-order mode, the converter is huge in size, difficult to process, and the mode competition is serious, which is actually not feasible. Therefore, a quasi-optical mode converter must be used to realize the high-order cavity mode. Efficient Transformation of Gaussian Beams
The traditional quasi-optical mode converter generally uses a Vlasov-type apertured radiator with a direct opening at the end of the waveguide, which has a large diffraction loss and a low overall conversion efficiency.
Especially for gyrotrons working in high-order asymmetric bulk membranes, it is difficult for Vlasov-type aperture radiators to meet the requirements of efficiency and size

Method used

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  • High-order asymmetric body mode cyclotron oscillation tube quasi-optical mode transformer
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  • High-order asymmetric body mode cyclotron oscillation tube quasi-optical mode transformer

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Embodiment Construction

[0031] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0032] In order to make the object, technical solution and effect 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. Embodiments not described or not shown in the drawings are forms known to those skilled in the art. Additionally, while illustrations of parameters containing particular values ​​may be provided herein, it should be understood that parameters need not be exactly equal to the corresponding values, but rather approximate the corresponding values ​​within acceptable error margins or design constraints. All the features disc...

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Abstract

The invention discloses a high-order asymmetric body mode cyclotron oscillation tube quasi-optical mode transformer. The high-order asymmetric body mode cyclotron oscillation tube quasi-optical mode transformer comprises a reflection mirror system and further comprises a pre-bunching type opening radiator, wherein the pre-bunching type opening radiator comprises a metal waveguide tube, an inner wall of the metal waveguide tube employs a perturbation structure, and the tail end of the metal waveguide tube is a spiral notch structure. According to the high-order asymmetric body mode cyclotron oscillation tube quasi-optical mode transformer, the pre-bunching type opening radiator is employed, the radiator comprises one segment of an irregular disturbance corrugated waveguide and spiral notch, through the specific perturbation structure, a work mode in the waveguide tube is converted into superposition of a series of modes which satisfy specific amplitudes and phase relationships, Gauss distribution is further formed, and outward radiation is realized through the spiral notch, as a notch position is at a position on a Gaussian beam speckle edge surface having weakest current distribution, diffraction loss is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of vacuum electronics in the electronics industry, in particular to a high-order asymmetric phantom cyclotron oscillator quasi-optical mode converter. Background technique [0002] The cyclotron oscillator is an important high-power microwave source in the millimeter and submillimeter bands, and has broad application prospects in the fields of controlled thermonuclear fusion plasma heating and microwave directed energy weapons. [0003] At present, the cyclotron oscillator is developing in the direction of high power, long pulse and continuous wave output. In order to improve the power capacity of cyclotron oscillator tubes, high-order cavity modes (circular electric mode, side gallery mode, and asymmetric bulk membrane) are usually used as the working modes of cyclotron oscillator tubes. This type of high-order cavity mode has serious diffraction and polarization loss during transmission, and is not suitab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/16
CPCH01P1/16
Inventor 王斌刘云龙郝宏刚尹波
Owner CHONGQING UNIV OF POSTS & TELECOMM
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