Resonant cavity tuning structure

A cavity tuning and cavity technology, which is applied to the field of resonant cavity tuning structures regulated by microwave devices, can solve problems such as poor tuning effect, and achieve the effects of simple processing, convenient use and good adjustment.

Active Publication Date: 2015-03-11
刘睛睛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In devices such as microstrip structures, dielectric resonators, and dielectric oscillators, because the energy of the electromagnetic field in these devices is concentrated in the device, the general tuning screw has little influence on the electromagnetic field, and the tuning effect is very poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 , 2 As shown, a resonant cavity tuning structure includes a metal cavity 1, a support body 2 protruding from the metal cavity 1 into the metal cavity 1, and an end of the support body 2 protruding into the metal cavity 1 The dielectric body 3; also includes a metal post 7 connected to the inner wall of the metal cavity 1; the dielectric body 3 is located above or on the side of the metal post 7. The interface between the dielectric body 3 and the support body 2 is a plane. A thin metal sheet 4 is also arranged between the dielectric body 3 and the support body 2 , and the interface between the dielectric body 3 , the thin metal sheet 4 and the support body 2 is a plane parallel to each other. A thin metal sheet 4 is also provided on the side of the dielectric body 3 away from the support body 2 . The support body 2 is provided with a screw thread 7 at one end away from the inside of the metal cavity 1; the support body 2 is also provided with a fixin...

Embodiment 2

[0043] Such as image 3 , 4 As shown, the difference between the present embodiment and the first embodiment is that the metal cavity 1 is a closed cavity, and the metal pillar 7 is a metal pillar with a circular cross section.

[0044] Here we give examples of the implementation of two tuning structures, but the implementation of the invention is not limited. For example, it can be decided according to the actual situation whether to use the metal platform 5 and the thin metal sheet 4 on the tuning structure, and the fixing device 6 with various structures can be used. The resonant cavity tuning structure can also be used as a part to form other filter devices and microwave components.

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PUM

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Abstract

The invention discloses a resonant cavity tuning structure, which comprises at least one metal cavity, a metal column, a support body and a medium body, wherein the support body extends into the metal cavity from the outer side of the metal cavity; the medium body is arranged at the top end, which extends into the metal cavity, of the support body. The resonant cavity tuning structure disclosed by the invention has the advantages of simpleness in processing, flexible structure and convenience in use. The resonant cavity tuning structure is expected to be widely applied to various microwave devices, and is especially used for the military and civil fields, such as radars, missile guidance and communication.

Description

technical field [0001] The invention relates to a resonant cavity tuning structure, in particular to a resonant cavity tuning structure used for microwave device adjustment. Background technique [0002] When tuning a microwave resonator, a tuning screw is usually used. However, the tuning sensitivity of ordinary tuning screws is limited, and the gap between the tuning screw and the structure to be tuned is often very small, which increases the difficulty of tuning, and this situation will also cause stability problems. In devices such as microstrip structures, dielectric resonators, and dielectric oscillators, because the energy of the electromagnetic field in these devices is concentrated in the device, the general tuning screw has little influence on the electromagnetic field, and the tuning effect is very poor. Contents of the invention [0003] The main advantage of the present invention is that the electromagnetic field distribution inside the resonant cavity is obv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P7/06
Inventor 王清源谭宜成莫坤山
Owner 刘睛睛
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