Unlock instant, AI-driven research and patent intelligence for your innovation.

Mechanical tunable filter

An adjustable filter technology, which is applied in the field of filters, can solve the problem that the cavity area of ​​the resonant cavity is less, and the cavity area cannot be changed by a metal plate, so as to achieve the effect of changing the filtering effect

Inactive Publication Date: 2018-02-23
成都美数科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that there are few means to change the cavity area of ​​the resonant cavity, and the cavity area cannot be changed directly by using metal plates, etc. The purpose is to provide a mechanically adjustable filter to solve the above problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mechanical tunable filter
  • Mechanical tunable filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] like Figure 1~2 As shown, a mechanically tunable filter of the present invention includes an input terminal 11 provided on the left side of the waveguide 1, an output terminal 12 provided on the right side of the waveguide 1, and several a rectangular opening, the direction of the rectangular opening is perpendicular to the direction of the waveguide 1, the metal plate 3 is inserted into the rectangular opening, the area of ​​the waveguide 1 between two adjacent metal plates 3 constitutes a resonant cavity, and the waveguide 2 An adjustment screw 4 is also arranged on the top, and a sector gear 5 is provided on the rectangular opening of the waveguide 1, and the sector gear 5 cooperates with the metal plate 3 to adjust the depth at which the metal plate 3 is inserted into the waveguide 1, and the sector gear 5 5. From the input end 11 to the output end 12, the size increases sequentially and proportionally, and the increase ratio is 1:2:3. Through the cooperation of t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a mechanical tunable filter. A left side of a waveguide is provided with an input end, a right side of the waveguide is provided with an output end, and a side surface of the waveguide is provided with a plurality of rectangular openings. The directions of the rectangular openings are perpendicular to the direction of the waveguide. Metal plates are inserted into the rectangular openings. A resonant cavity is formed by a waveguide region between two adjacent metal plates. The waveguide is also provided with an adjusting screw. Sector gears are arranged on the rectangular openings of the waveguide and are matched with the metal plates. The depths of inserting the metal plates into the waveguide are adjusted, the sizes of the sector gears are increased from an input end to an output end sequentially, and the increase ratio is 1 to 2 to 3. By matching the sector gears and racks on the metal plates, the metal plates can move up and down, the depths of inserting themetal plates into the waveguide can be adjusted, the channel area of the waveguide can be increased or decreased, and so the quick mechanical adjustment of a filtering effect can be carried out.

Description

technical field [0001] The invention relates to a filter, in particular to a mechanically adjustable filter. Background technique [0002] Microwave filters are an extremely important part of many modern microwave and millimeter wave systems, and their performance often directly affects the performance of the entire system. Due to the increasing shortage of radio communication frequency resources, the working frequency of various communication systems will develop to higher frequency microwave or even millimeter wave. In order to make better use of spectrum resources, the requirements for various communication frequency points are relatively narrow. At this time, multi-stage filtering is usually used to adjust the filtering effect, which cannot effectively save resources and improve the use effect of a single filter. At present, there is no filter that can quickly adjust the filtering effect. Contents of the invention [0003] The technical problem to be solved by the pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/208
CPCH01P1/208
Inventor 杜江矣峻岭
Owner 成都美数科技有限公司