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Waveguide mode exciting device

A mode excitation and waveguide technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve problems such as higher requirements for experimental conditions and higher requirements for device processing accuracy, and achieve the effect of suppressing stray modes

Inactive Publication Date: 2014-11-05
INST OF ELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0004] The traditional mode excitation device adopts the method of quasi-optical mode excitation, which requires high processing accuracy of the device. At the same time, it also needs to accurately align each component during the assembly process, which requires high experimental conditions.

Method used

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the...

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Abstract

The invention provides a waveguide mode exciting device which comprises a first mode conversion assembly and a second mode conversion assembly. The first mode conversion assembly is used for converting the mode of millimeter waves from a TE 10 fundamental mode to a circular waveguide TE61 mode, and the second mode conversion assembly is used for being communicated with the first mode conversion assembly and converting the mode of the millimeter waves from the circular waveguide TE61 mode to the circular waveguide TE62 mode. According to the waveguide mode exciting device, by means of a mode conversion chain of converting the rectangular waveguide TE10 mode into the circular waveguide TE62 mode, the high-purity target mode output is obtained, a parasitic mode is effectively restrained, and the obtained high-purity target mode can be used for cold measuring of a gyrotron interaction circuit and a standard light mode converter system.

Description

technical field [0001] The invention relates to the technical field of vacuum electronics in the electronics industry, in particular to a waveguide mode excitation device. Background technique [0002] The gyrotron has the advantages of high power, long pulse, and continuous wave output in the millimeter wave band, and has broad application prospects in the fields of millimeter wave radar, plasma heating of controlled thermonuclear fusion, material processing, and biomedicine. [0003] In order to improve the power capacity of the gyrotron, a cavity with a relatively large size is usually used as an interactive circuit, and it works in a high-order side gallery mode or a high-order phantom. Low-order modes for transmission or direct exploitation. The high-frequency interaction circuit of this type of gyrotron and its quasi-optical mode converter system usually need to be cold-tested before installation, and the high-purity target mode needs to be excited as the input signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/16
Inventor 耿志辉沈文渊刘濮鲲顾伟王虎
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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