Coaxial resonant cavity and applications thereof

A coaxial resonant cavity and coaxial technology, applied in the microwave field, can solve the problem of low resonance frequency and achieve the effect of increasing resonance frequency and high quality factor

Active Publication Date: 2016-11-09
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the technical problem of low resonant frequency of the existing coaxial resonant cavity, the present invention provides a coaxial resonant cavity with high resonant frequency and its application

Method used

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  • Coaxial resonant cavity and applications thereof
  • Coaxial resonant cavity and applications thereof
  • Coaxial resonant cavity and applications thereof

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] The first embodiment of the present invention provides a coaxial resonant cavity 10

[0041] combine figure 1 , figure 2 As shown, the coaxial resonator 10 includes a coupling mechanism 14 and a cavity 19 . The coupling mechanism 14 is used for excitation and coupling of microwaves in the cavity 19 , that is, to input microwaves into the cavity 19 to form the oscillation of the cavity 19 , and to couple and output microwave signals in the cavity 19 . The coaxial resonant cavity 10 further includes a probe 113 protruding from the cavity 19 , and the probe 113 is arranged ...

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Abstract

The invention relates to the technical field of microwaves and particularly relates to a coaxial resonant cavity and applications thereof. The coaxial resonant cavity comprises a coupling mechanism and a cavity body, wherein the coupling mechanism is used for excitation or coupling of microwaves in the cavity body; the coaxial resonant cavity also comprises a probe extending out of the cavity body, and the probe and the cavity body are coaxially set; the cavity body is a circular column, and the ratio of the exradius to the inradius of the circular column is (3-5) to 1. On the basis of not reducing the size of the coaxial resonant cavity, through controlling the ratio of the exradius to the inradius of the circular column to be (3-5) to 1, the resonant efficiency can be effectively improved. The invention also provides a material dielectric constant test system, a microwave detection device, a filter and a microwave sterilization device by adopting the coaxial resonant cavity.

Description

【Technical field】 [0001] The invention relates to the field of microwave technology, in particular to a coaxial resonant cavity and its application. 【Background technique】 [0002] Microwaves refer to electromagnetic waves with frequencies ranging from 300MHz to 300GHz and corresponding wavelengths ranging from 1m to 1mm. Microwave has good penetrating ability, good directivity and less environmental pollution, so microwave technology has been developed rapidly. In the microwave components used in microwave technology, the coaxial resonant cavity is formed by closing both ends of a coaxial line with short-circuit surfaces or open-circuit surfaces. Due to its advantages such as wide operating frequency, simple oscillation mode and stable field structure, Therefore, it has been widely used, such as measuring devices for dielectric constant, filters, etc. [0003] The resonant frequency and quality factor of the coaxial resonator are important parameters of the coaxial resona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P7/06G01N22/02G01R27/26
CPCG01N22/02G01R27/2617H01P7/06H01P7/04H01P7/10
Inventor 向勇王聪冯雪松刘芬芬
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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