CN110534858B - Switching mechanism of filter - Google Patents
Switching mechanism of filter Download PDFInfo
- Publication number
- CN110534858B CN110534858B CN201910682381.9A CN201910682381A CN110534858B CN 110534858 B CN110534858 B CN 110534858B CN 201910682381 A CN201910682381 A CN 201910682381A CN 110534858 B CN110534858 B CN 110534858B
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- tuning fork
- metal
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- tuning
- column
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- 230000007246 mechanism Effects 0.000 title claims abstract description 50
- 239000002184 metal Substances 0.000 claims abstract description 85
- 229910052751 metal Inorganic materials 0.000 claims abstract description 85
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 238000005452 bending Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a switching mechanism of a filter, and belongs to the technical field of filters. The utility model provides a changeover mechanism of wave filter, including main tank body and chamber lid, chamber lid fixed connection is at main tank body top, main tank body outer wall connection has input mechanism and output mechanism, main tank body bottom inner wall connection has first metal resonance post, second metal resonance post, medium resonance post, first tuning fork auxiliary resonance post and second tuning fork auxiliary resonance post, main tank body lateral wall is connected with first turning tuning fork and second turning tuning fork, first tuning fork auxiliary resonance post cooperatees with first turning tuning fork, second tuning fork auxiliary resonance post cooperatees with second turning tuning fork, first turning tuning fork both legs communicate first metal resonance post and medium resonance post respectively, second turning tuning fork both legs communicate second metal resonance post and medium resonance post respectively, the tuning fork of bending is 45 degrees sheet metal parts of bending, the diameter of tuning fork auxiliary resonance post is the quarter of the total width of tuning fork of bending.
Description
Technical Field
The invention relates to the technical field of filters, in particular to a switching mechanism of a filter.
Background
With the progress and development of microwave technology, filters are widely used as a frequency selection in the field of communication technology, particularly in the field of radio frequency communication technology; in the design process of the metal-dielectric mixed mode filter, an elongated copper wire is welded on a metal resonator to convert the resonant mode of the metal cavity into a dielectric cavity to realize unification of the resonant mode, and then the window coupling amount of the metal cavity and a dielectric (ceramic) is regulated to reach the required index.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a switching mechanism of a filter.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a changeover mechanism of wave filter, includes main tank body and chamber lid, chamber lid fixed connection is at main tank body top, main tank body outer wall connection has input mechanism and output mechanism, main tank body bottom inner wall connection has first metal resonance post, second metal resonance post, medium resonance post, first tuning fork auxiliary resonance post and second tuning fork auxiliary resonance post, main tank body lateral wall is connected with first turning tuning fork and second turning tuning fork, first tuning fork auxiliary resonance post cooperatees with first turning tuning fork, second tuning fork auxiliary resonance post cooperatees with second turning tuning fork, first turning tuning fork both legs communicate first metal resonance post and medium resonance post respectively, second turning tuning fork both legs communicate second metal resonance post and medium resonance post respectively.
Preferably, the main box body is internally provided with a first metal cavity, a second metal cavity and a medium cavity, the first metal resonant column, the second metal resonant column and the medium resonant column are respectively connected to the inner walls of the bottoms of the first metal cavity, the second metal cavity and the medium cavity, the cavity covers are respectively and rotatably connected with a first tuning screw, a second tuning screw and a third tuning screw, and the first tuning screw, the second tuning screw and the third tuning screw are respectively matched with the second metal resonant column and the medium resonant column of the first metal resonant column.
Preferably, the first tuning fork auxiliary resonance column is connected between the first metal cavity and the medium cavity, the second tuning fork auxiliary resonance column is connected between the second metal cavity and the medium cavity, the cavity cover is rotatably connected with a fourth tuning screw and a fifth tuning screw, and the fourth tuning screw and the fifth tuning screw are respectively matched with the first tuning fork auxiliary resonance column and the second tuning fork auxiliary resonance column.
Preferably, the input mechanism is matched with the first metal cavity, the output mechanism is matched with the second metal cavity, the input mechanism and the output mechanism all comprise a support, a connector, a guide rod and a coupling copper sheet, the coupling copper sheet of the input mechanism is connected to the inner wall of the first metal cavity, the coupling copper sheet of the output mechanism is connected to the inner wall of the second metal cavity, the support is connected to the outer wall of the main box body, and the connector is connected with the coupling copper sheet through the guide rod.
Preferably, the first and second tuning forks are 45-degree bending sheet metal parts
Preferably, the diameters of the first tuning fork auxiliary resonating pillar and the second tuning fork auxiliary resonating pillar are one fourth of the total width of the first tuning fork and the second tuning fork, respectively.
Preferably, the cavity cover is fixedly connected to the main box body through bolts.
Compared with the prior art, the invention provides a switching mechanism of a filter, which has the following beneficial effects:
1. The switching mechanism of the filter is characterized in that a main box body is arranged on a horizontal plane, a cavity cover is arranged on the main box body and is sealed through a bolt, a connector of an input mechanism is connected to a waveform to be switched, the waveform is transmitted to a coupling copper sheet connected to the inner wall of a first metal cavity through a guide rod, a first tuning fork is connected to a first window between the first metal cavity and a medium cavity, two supporting legs of the first tuning fork are respectively and deeply connected to the first metal cavity and the medium cavity, a resonant mode (direct up and down) in the first metal cavity is directly converted into a medium cavity resonant mode (rotary mode) through the first tuning fork, thereby realizing the coupling of magnetic flux between a first metal resonant column and the medium resonant column, more recently, a first tuning fork auxiliary resonant column is also connected to the first tuning fork in a first window between the first metal cavity and the medium cavity, the first tuning fork auxiliary resonant column is matched with the first tuning fork, window coupling between two single cavities can be debugged through adjusting the first tuning fork auxiliary resonant column, the same window between the second metal cavity and the medium cavity is also connected to the second window between the second metal cavity and the medium cavity, the resonant mode (direct up and down) is directly converted into the medium cavity resonant mode (rotary mode) through the first tuning fork, the magnetic flux between the first tuning fork and the medium cavity is also realized, the coupling principle of the medium cavity is not is realized, and the filter is also realized, and the filter is completely stable after the filter is realized, and the filter is further and the medium is simultaneously and the medium is further converted.
Drawings
Fig. 1 is a front view of a switching mechanism of a filter according to the present invention;
fig. 2 is a top view of a switching mechanism of a filter according to the present invention;
FIG. 3 is a schematic diagram of a portion A-A of a switching mechanism of a filter according to the present invention;
Fig. 4 is a schematic structural diagram of a switching mechanism of a filter according to the present invention;
Fig. 5 is a schematic structural diagram of a switching mechanism of a filter according to the present invention;
fig. 6 is a schematic structural diagram of a switching mechanism of a filter according to the present invention;
fig. 7 is a schematic structural diagram of a switching mechanism of a filter according to the present invention.
In the figure: 1. a main case; 101. a bolt; 2. a cavity cover; 3. a first metal cavity; 4. a second metal cavity; 5. a medium chamber; 301. a first metal resonating pillar; 302. a first tuning screw; 401. a second metal resonating pillar; 402. a second tuning screw; 501. a dielectric resonating column; 502. a third tuning screw; 601. a first tuning fork auxiliary resonating column; 602. a fourth tuning screw; 603. a first folded tuning fork; 604. a second tuning fork auxiliary resonating column; 605. a fifth tuning screw; 606. a second folded tuning fork; 7. a support; 701. coupling copper sheets; 702. a joint; 703. and a guide rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Examples:
Referring to fig. 1-7, a switching mechanism of a filter includes a main box 1 and a cavity cover 2, the cavity cover 2 is fixedly connected to the top of the main box 1, an input mechanism and an output mechanism are connected to the outer wall of the main box 1, a first metal resonant column 301, a second metal resonant column 401, a dielectric resonant column 501, a first tuning fork auxiliary resonant column 601 and a second tuning fork auxiliary resonant column 604 are connected to the inner wall of the bottom of the main box 1, a first tuning fork 603 and a second tuning fork 606 are connected to the side wall of the main box 1, the first tuning fork auxiliary resonant column 601 is matched with the first tuning fork 603, the second tuning fork auxiliary resonant column 604 is matched with the second tuning fork 606, two legs of the first tuning fork 603 are respectively communicated with the first metal resonant column 301 and the dielectric resonant column 501, and two legs of the second tuning fork 606 are respectively communicated with the second metal resonant column 401 and the dielectric resonant column 501.
The main box body 1 is internally provided with a first metal cavity 3, a second metal cavity 4 and a medium cavity 5, a first metal resonance column 301, a second metal resonance column 401 and a medium resonance column 501 are respectively connected to the inner walls of the bottoms of the first metal cavity 3, the second metal cavity 4 and the medium cavity 5, a first tuning screw 302, a second tuning screw 402 and a third tuning screw 502 are respectively connected to the cavity cover 2 in a rotating mode, and the first tuning screw 302, the second tuning screw 402 and the third tuning screw 502 are respectively matched with the second metal resonance column 401 and the medium resonance column 501 of the first metal resonance column 301.
The first tuning fork auxiliary resonance column 601 is connected between the first metal cavity 3 and the medium cavity 5, the second tuning fork auxiliary resonance column 604 is connected between the second metal cavity 4 and the medium cavity 5, the cavity cover 2 is rotatably connected with a fourth tuning screw 602 and a fifth tuning screw 605, and the fourth tuning screw 602 and the fifth tuning screw 605 are matched with the first tuning fork auxiliary resonance column 601 and the second tuning fork auxiliary resonance column 604 respectively.
The input mechanism is matched with the first metal cavity 3, the output mechanism is matched with the second metal cavity 4, the input mechanism and the output mechanism all comprise a support 7, a connector 702, a guide rod 703 and a coupling copper sheet 701, the coupling copper sheet 701 of the input mechanism is connected to the inner wall of the first metal cavity 3, the coupling copper sheet 701 of the output mechanism is connected to the inner wall of the second metal cavity 4, the support 7 is connected to the outer wall of the main box body 1, and the connector 702 is connected with the coupling copper sheet 701 through the guide rod 703.
The first tuning fork 603 and the second tuning fork 606 are both 45-degree bent sheet metal parts.
The diameters of the first tuning fork auxiliary resonating pillar 601 and the second tuning fork auxiliary resonating pillar 604 are one fourth of the total width of the first tuning fork 603 and the second tuning fork 606, respectively.
The chamber cover 2 is fixedly connected to the main casing 1 by bolts 101.
According to the invention, the main box body 1 is placed on a horizontal plane, the cavity cover 2 on the main box body 1 is sealed through the bolt 101, a waveform to be transferred is accessed from the joint 702 of the input mechanism, the waveform is transmitted to the coupling copper sheet 701 connected to the inner wall of the first metal cavity 3 through the guide rod 703, a first tuning fork 603 is connected to a first window between the first metal cavity 3 and the medium cavity 5, two supporting legs of the first tuning fork 603 are respectively and deeply connected to the first metal cavity 3 and the medium cavity 5, a resonant mode (direct up and down) in the first metal cavity 3 is directly converted into a resonant mode (rotary mode) of the medium cavity 5 through the first tuning fork 603, so that the coupling of magnetic flux between the first metal resonant column 301 and the medium resonant column 501 is realized, more recently, a first tuning fork auxiliary resonant column 601 is also connected to the first window between the first metal cavity 3 and the medium cavity 5, the first tuning fork auxiliary resonant column 601 is matched with the first tuning fork 603, the coupling between the two single cavities can be realized through adjusting the first auxiliary resonant column 601, the same window between the second metal cavity 4 and the second tuning fork 5 is also connected to the second metal cavity 5 through the second window, and the same principle is realized, and the coupling of the waveform is realized between the second tuning fork resonant column and the medium cavity 5 and the medium cavity is not connected to the medium cavity 4.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The switching mechanism of the filter comprises a main box body (1) and a cavity cover (2), wherein the cavity cover (2) is fixedly connected to the top of the main box body (1), the switching mechanism is characterized in that an input mechanism and an output mechanism are connected to the outer wall of the main box body (1), a first metal resonant column (301), a second metal resonant column (401), a medium resonant column (501), a first tuning fork auxiliary resonant column (601) and a second tuning fork auxiliary resonant column (604) are connected to the inner wall of the bottom of the main box body (1), a first tuning fork (603) and a second tuning fork (606) are connected to the side wall of the main box body (1), the first tuning fork auxiliary resonant column (601) is matched with the first tuning fork (603), two supporting legs of the first tuning fork (603) are respectively communicated with the first metal resonant column (301) and the medium resonant column (501), two supporting legs of the second tuning fork (606) are respectively communicated with the second metal resonant column (401) and the second tuning fork (604), and the second tuning fork auxiliary resonant column (606) is arranged between the two supporting legs of the second tuning fork (603) and the second tuning fork (606);
The main box body (1) is internally provided with a first metal cavity (3), a second metal cavity (4) and a medium cavity (5), the first metal resonance column (301), the second metal resonance column (401) and the medium resonance column (501) are respectively connected to the inner walls of the bottoms of the first metal cavity (3), the second metal cavity (4) and the medium cavity (5), the cavity cover (2) is respectively and rotatably connected with a first tuning screw (302), a second tuning screw (402) and a third tuning screw (502), and the first tuning screw (302), the second tuning screw (402) and the third tuning screw (502) are respectively matched with the second metal resonance column (401) and the medium resonance column (501) of the first metal resonance column (301);
The first tuning fork auxiliary resonant column (601) is connected between the first metal cavity (3) and the medium cavity (5), the second tuning fork auxiliary resonant column (604) is connected between the second metal cavity (4) and the medium cavity (5), the cavity cover (2) is rotatably connected with a fourth tuning screw (602) and a fifth tuning screw (605), and the fourth tuning screw (602) and the fifth tuning screw (605) are respectively matched with the first tuning fork auxiliary resonant column (601) and the second tuning fork auxiliary resonant column (604);
The input mechanism is matched with the first metal cavity (3), the output mechanism is matched with the second metal cavity (4), the input mechanism and the output mechanism comprise a support (7), a connector (702), a guide rod (703) and a coupling copper sheet (701), the coupling copper sheet (701) of the input mechanism is connected to the inner connecting wall of the first metal cavity (3), the coupling copper sheet (701) of the output mechanism is connected to the inner connecting wall of the second metal cavity (4), the support (7) is connected to the outer wall of the main box (1), and the connector (702) and the coupling copper sheet (701) are connected through the guide rod (703).
2. The switching mechanism of a filter according to claim 1, wherein the first folded tuning fork (603) and the second folded tuning fork (606) are each 45-degree folded sheet metal parts.
3. The switching mechanism of a filter according to claim 1, wherein the diameters of the first tuning fork auxiliary resonating leg (601) and the second tuning fork auxiliary resonating leg (604) are one fourth of the total width of the first tuning fork (603) and the second tuning fork (606), respectively.
4. The switching mechanism of a filter according to claim 1, wherein the cavity cover (2) is fixedly connected to the main housing (1) by bolts (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682381.9A CN110534858B (en) | 2019-07-26 | 2019-07-26 | Switching mechanism of filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682381.9A CN110534858B (en) | 2019-07-26 | 2019-07-26 | Switching mechanism of filter |
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| Publication Number | Publication Date |
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| CN110534858A CN110534858A (en) | 2019-12-03 |
| CN110534858B true CN110534858B (en) | 2024-06-04 |
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| CN201910682381.9A Active CN110534858B (en) | 2019-07-26 | 2019-07-26 | Switching mechanism of filter |
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