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A microwave coaxial cavity

A technology of coaxial resonant cavity and microwave, which is applied in the direction of resonators, waveguide devices, circuits, etc., to achieve the effect of low manufacturing cost, simple process and reduced process cost

Active Publication Date: 2019-07-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above existing problems or deficiencies, in order to solve the existing quarter-wavelength coaxial resonator miniaturization technical problem, the present invention provides a microwave coaxial resonator

Method used

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  • A microwave coaxial cavity
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  • A microwave coaxial cavity

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] In this example, 340MHz is taken as an example, and the parameters of the quarter-wavelength coaxial resonator at 340MHz are determined through HFSS simulation software.

[0032] like figure 1 As shown, an ultra-miniature microwave resonant cavity includes a metal cavity cover 1, a metal cavity 2, an input and output hole 3 on the metal cavity cover, a metal post 4, a rubber waterproof ring 5, pure water 6 filled in the cavity, and a metal cavity cover. The cavity covers the water hole 7.

[0033] The metal cavity 2 is a hollow cylinder with one end open, the wall thickness of the metal cavity 2 is 3mm, the cavity height is 23mm, and the cavity inner diameter is 12mm. The opening of the metal cavity 2 is provided with a thread matched with the metal cavity cover 1, and is fixedly connected with the metal cavity cover through the threa...

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Abstract

The invention belongs to the technical field of measuring electromagnetic parameters of materials, and in particular relates to a microwave coaxial resonant cavity. The invention realizes miniaturization technical effect by filling the quarter-wavelength coaxial resonant cavity with liquid medium with high dielectric constant instead of air or solid medium. And because the liquid medium is used, the cost is low (for example, pure water is selected), and further structural processing is not required, thereby reducing the process cost. Therefore, compared with the quarter-wavelength coaxial resonator of the solid medium, the cost is low and the process is simple; compared with the air medium combined structure design, the process is simple and the manufacturing cost is low.

Description

technical field [0001] The invention belongs to the technical field of measuring electromagnetic parameters of materials, and in particular relates to a microwave coaxial resonant cavity. Background technique [0002] As a resonant circuit in the microwave frequency band, the resonant cavity has a wide range of applications in the microwave and radio frequency fields. The resonant cavity is usually composed of a closed metal cavity, and the electric field and magnetic field are confined in the cavity without energy loss through radiation. With the development of microwave and radio frequency technology, the requirement for the miniaturization of the resonator is getting higher and higher. [0003] The existing quarter-wavelength coaxial resonant cavity is composed of a metal cavity and a metal inner conductor, and air or solid is filled between the metal cavity and the inner conductor as a medium. [0004] Since the cavity length of the quarter-wavelength resonator is rela...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P7/04H01P7/06
CPCH01P7/04H01P7/06
Inventor 向勇刘思豪王聪
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA