CN115458884B - Ultra-deep cavity filter design processing method - Google Patents
Ultra-deep cavity filter design processing method Download PDFInfo
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- CN115458884B CN115458884B CN202211291693.5A CN202211291693A CN115458884B CN 115458884 B CN115458884 B CN 115458884B CN 202211291693 A CN202211291693 A CN 202211291693A CN 115458884 B CN115458884 B CN 115458884B
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- cavity
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- output
- fixing screw
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- 238000003672 processing method Methods 0.000 title claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 106
- 229910052802 copper Inorganic materials 0.000 claims abstract description 106
- 239000010949 copper Substances 0.000 claims abstract description 106
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 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
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
- H01P11/007—Manufacturing frequency-selective devices
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a design and processing method of an ultra-deep cavity filter, and relates to the technical field of filter structures. The invention comprises a cavity, wherein a cover plate is fixedly arranged at the top end of the cavity, a tuning screw is arranged on the cover plate in a threaded manner, the tuning screw stretches into the cavity, a round copper bar and three resonant columns are fixedly arranged in the cavity, an output copper sheet is fixedly arranged on one resonant column, an input copper sheet is fixedly arranged on the other resonant column, an output connector and an input connector are fixedly arranged at the front end of the cavity, inner cores of the output connector and the input connector stretch into the cavity, the inner cores of the output connector are propped against the output copper sheet, the inner cores of the input connector are propped against the input copper sheet, and the entity in the middle of a filtering cavity window can be detached, and the product requirement of a low-frequency narrow passband is met by using the round copper bar with the same cavity depth to replace.
Description
Technical Field
The invention belongs to the technical field of filter structures, and particularly relates to a design and processing method of an ultra-deep cavity filter.
Background
In the design of band elimination filter and debugging process, different products have different product indexes, in conventional filter design, often meet the frequency and relatively low, the product demand of the narrow passband of low frequency that need not install the resonance post alone, because the frequency is relatively low, the degree of depth of resonant cavity can be darker, and passband width is narrower relatively, lead to the window between two adjacent resonant cavities to be less, can lead to a problem like this, because the less CNC processing that leads to of the darker window of cavity is more difficult, because the darker window of degree of depth just needs to use custom cutter, knife and extension handle of a knife cause process time longer, the process speed is slower, so processing cost rises, the process quality is bad, inefficiency, some processing problems such as time are long.
Accordingly, there is a need for an improved method for designing and processing ultra-deep cavity filters that overcomes the shortcomings and drawbacks of the prior art.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a design and processing method of an ultra-deep cavity filter, which can overcome the problems or at least partially solve the problems.
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that: the utility model provides a super dark chamber wave filter design processing method, includes the cavity, the top fixed mounting of cavity has the apron, install the tuning screw on the apron, the tuning screw stretches into in the cavity, fixed mounting has a circular bar copper and three resonance post in the cavity, one of them fixed mounting has output copper sheet on the resonance post, another fixed mounting has input copper sheet on the resonance post, the front end fixed mounting of cavity has output joint and input joint, output joint with the inner core of input joint all stretches into in the cavity, the inner core of output joint with output copper sheet offsets, the inner core of input joint with input copper sheet offsets.
In order to achieve better filtering performance of the three resonant columns, preferably, three isolation plates are fixedly arranged in the cavity, the cavity is uniformly divided into three filtering cavities by the isolation plates, and the three filters are mutually communicated.
In order to limit the positions of the resonant columns, further, the resonant columns are respectively positioned at the central positions of the three filter cavities, and the round copper rod is positioned at the central positions of the three resonant columns.
In order to fix circular bar copper, still further, the bottom of cavity with the bottom of circular bar copper is equipped with the fixed screw of assorted bar copper, on the apron with the top of circular bar copper also is equipped with the fixed screw of assorted bar copper, two equal screw thread installs circular bar copper set screw in the fixed screw of bar copper.
In order to make six pairs, three tuning screws are located right above the resonant column, the bottom ends of the three tuning screws extend into grooves at the top end of the resonant column, and the other three tuning screws are located right above the connecting line center of the round copper rod and the isolation plate.
In order to adjust the length of the tuning screw extending into the filter cavity, further, a tuning nut is arranged on the resonant column in a threaded manner, and the bottom surface of the tuning nut abuts against the top surface of the cover plate.
In order to achieve a better filtering effect, preferably, the output connector and the input connector are both located on the same side face of the cavity, and the inner core of the output connector is parallel to the inner core of the input connector.
In order to fix the cover plate, preferably, the top end of the cavity and the cover plate are provided with matched cover plate fixing screw holes, and cover plate pan head fixing screws are arranged in the cover plate fixing screw holes in a threaded mode.
In order to fix the output copper sheet, preferably, the resonant column provided with the output copper sheet is provided with an output copper sheet fixing screw hole matched with the output copper sheet, and an output copper sheet fixing screw is arranged in the output copper sheet fixing screw hole in a threaded manner.
In order to fix the input copper sheet, preferably, an input copper sheet fixing screw hole matched with the input copper sheet is formed in the resonant column provided with the input copper sheet, and an input copper sheet fixing screw is arranged in the input copper sheet fixing screw hole in a threaded manner.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects: according to the ultra-deep cavity filter design processing method, the entity in the middle of the window of the filtering cavity is split, the round copper bar with the same cavity depth is used for replacement, the size of the round copper bar is defined as a standard section bar during design, the processing is convenient, the cost is low, the original entity part of the cavity is perforated, the corresponding position of the cover plate is perforated, and the two ends of the cover plate are fixed by using the round copper bar fixing screws.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.
In the drawings:
FIG. 1 is a schematic diagram of the front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic top view of a hidden cover plate of the present invention;
FIG. 4 is a schematic side view of the internal structure of the present invention;
fig. 5 is a schematic three-dimensional perspective view of the present invention.
In the figure: 1. a cover plate; 2. a cavity; 3. outputting copper sheet fixing screws; 4. outputting copper sheets; 5. an output joint; 6. inputting copper sheet fixing screws; 7. inputting copper sheets; 8. an input connector; 9. cover plate pan head fixing screws; 10. a tuning screw; 11. a round copper bar; 12. round copper bar fixing screws; 13. a resonant column; 14. and a partition plate.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
Examples:
Referring to fig. 1-5, an ultra-deep cavity filter design processing method comprises a cavity 2, wherein a cover plate 1 is fixedly arranged at the top end of the cavity 2, a tuning screw 10 is arranged on the cover plate 1 in a threaded manner, the tuning screw 10 stretches into the cavity 2, a round copper bar 11 and three resonant columns 13 are fixedly arranged in the cavity 2, an output copper sheet 4 is fixedly arranged on one resonant column 13, an input copper sheet 7 is fixedly arranged on the other resonant column 13, an output connector 5 and an input connector 8 are fixedly arranged at the front end of the cavity 2, inner cores of the output connector 5 and the input connector 8 stretch into the cavity 2, the inner core of the output connector 5 is propped against the output copper sheet 4, and the inner core of the input connector 8 is propped against the input copper sheet 7.
Three division boards 14 are fixedly installed in the cavity 2, the division boards 14 evenly divide the cavity 2 into three filter cavities, communicate each other among the three filters, the resonance column 13 is located the central point of three filter cavities respectively, the round copper bar 11 is located the central point of three resonance column 13, the bottom of the cavity 2 and the bottom of round copper bar 11 are equipped with assorted copper bar fixing screw holes, be equipped with assorted copper bar fixing screw holes on apron 1 and the top of round copper bar 11 too, round copper bar fixing screw 12 is installed to two copper bar fixing screw holes in all screw threads, tuning screw 10 totally six, wherein three tuning screw 10 are located the recess on resonance column 13, and the bottom of these three tuning screw 10 stretches into in the recess on resonance column 13 top, three tuning screw 10 is located the central point of round copper bar 11 and division boards 14, install the tuning nut on resonance column 13, the bottom surface of tuning nut offsets with apron 1, through the top surface of round copper bar fixing screw 12 with copper bar 2 on the cavity 2 bottom copper bar fixing screw 11, carry out the rotation of tuning screw 10 on the round copper bar fixing screw 1 again in the cavity 2, the tuning screw 10 is carried out the rotation length from the top of round copper bar fixing screw 10, the top of turning round copper bar 1 is adjusted in the tuning screw 10, the top of the tuning screw 10 is screwed on the round copper bar fixing screw 1, the top is screwed in the top of the round copper bar 1.
The output connector 5 and the input connector 8 are both positioned on the same side face of the cavity 2, the inner cores of the output connector 5 and the inner cores of the input connector 8 are parallel, the two inner cores are parallel, and signal angle deviation is avoided, so that errors are generated.
The top of the cavity 2 and the cover plate 1 are provided with matched cover plate fixing screw holes, cover plate pan head fixing screws 9 are arranged in the cover plate fixing screw holes in a threaded mode, the cover plate 1 is covered, and the cover plate 1 is fixed to the cavity 2 by the cover plate pan head fixing screws 9.
The resonant column 13 provided with the output copper sheet 4 is provided with an output copper sheet fixing screw hole matched with the output copper sheet 4, the output copper sheet fixing screw hole is internally provided with an output copper sheet fixing screw 3, and the output copper sheet 4 is fixed on the resonant column 13 by the output copper sheet fixing screw 3 and is propped against the inner core of the output joint 5.
The resonance column 13 provided with the input copper sheet 7 is provided with an input copper sheet fixing screw hole matched with the input copper sheet 7, the input copper sheet fixing screw hole is internally provided with an input copper sheet fixing screw 6, and the input copper sheet 7 is fixed on the other resonance column 13 by using the input copper sheet fixing screw 6 and is propped against the inner core of the input joint 8.
According to the invention, three isolation plates 14 are arranged in the cavity 2, the interior of the cavity 2 is separated into three filter cavities by the isolation plates 14, each filter cavity is internally provided with one resonant column 13, a round copper rod 11 is fixed between the three resonant columns 13 through a round copper rod fixing screw 12, the cover plate 1 is covered on the cavity 2, a tuning screw 10 is screwed on the cover plate 1, the position of the bottom end of the tuning screw 10 extending into a groove at the top end of the resonant column 13 is regulated, when the preset length is reached, a tuning nut is screwed on the tuning screw 10, the tuning screw 10 is fixed, the round copper rod 11 is fixed from the top end through the circular copper rod 11 instead of a solid between filter cavity windows through the screw thread rotation of the round copper rod 12, and the product requirement of a low-frequency narrow passband is met.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.
Claims (9)
1. A design and processing method of an ultra-deep cavity filter is characterized by comprising the following steps of: the novel copper-clad aluminum alloy wire comprises a cavity (2), wherein a cover plate (1) is fixedly arranged at the top end of the cavity (2), a tuning screw (10) is arranged on the cover plate (1) in a threaded manner, the tuning screw (10) stretches into the cavity (2), a round copper bar (11) and three resonant columns (13) are fixedly arranged in the cavity (2), an output copper sheet (4) is fixedly arranged on one resonant column (13), an input copper sheet (7) is fixedly arranged on the other resonant column (13), an output joint (5) and an input joint (8) are fixedly arranged at the front end of the cavity (2), the inner cores of the output joint (5) and the input joint (8) stretch into the cavity (2), the inner cores of the output joint (5) are propped against the output copper sheet (4), and the inner cores of the input joint (8) are propped against the input copper sheet (7);
The round copper bars (11) are positioned at the center positions of the three resonant columns (13);
The bottom end of the cavity (2) and the bottom end of the round copper bar (11) are provided with matched copper bar fixing screw holes, the cover plate (1) and the top end of the round copper bar (11) are also provided with matched copper bar fixing screw holes, and round copper bar fixing screws (12) are respectively and internally arranged in the two copper bar fixing screw holes in a threaded manner;
the round copper bar (11) replaces the entity in the middle of the window of the filtering cavity, and the height of the round copper bar (11) is the same as the cavity depth.
2. The ultra-deep cavity filter design processing method according to claim 1, wherein the method comprises the following steps: three isolation plates (14) are fixedly arranged in the cavity (2), the cavity (2) is uniformly divided into three filtering cavities by the isolation plates (14), and the three filtering cavities are mutually communicated.
3. The ultra-deep cavity filter design processing method according to claim 2, wherein the method comprises the following steps: the resonant columns (13) are respectively positioned at the center positions of the three filter cavities.
4. The ultra-deep cavity filter design processing method according to claim 2, wherein the method comprises the following steps: six tuning screws (10) are arranged, three of the tuning screws (10) are located right above the resonant column (13), the bottom ends of the three tuning screws (10) extend into grooves at the top ends of the resonant column (13), and the other three tuning screws (10) are located right above the connecting line center of the round copper bar (11) and the isolation plate (14).
5. The ultra-deep cavity filter design processing method according to claim 4, wherein the method comprises the following steps: and a tuning nut is arranged on the resonant column (13) in a threaded manner, and the bottom surface of the tuning nut abuts against the top surface of the cover plate (1).
6. The ultra-deep cavity filter design processing method according to claim 1, wherein the method comprises the following steps: the output connector (5) and the input connector (8) are both positioned on the same side face of the cavity (2), and the inner core of the output connector (5) is parallel to the inner core of the input connector (8).
7. The ultra-deep cavity filter design processing method according to claim 1, wherein the method comprises the following steps: the top of the cavity (2) and the cover plate (1) are provided with matched cover plate fixing screw holes, and cover plate pan head fixing screws (9) are arranged in the cover plate fixing screw holes in a threaded mode.
8. The ultra-deep cavity filter design processing method according to claim 1, wherein the method comprises the following steps: the resonant column (13) provided with the output copper sheet (4) is provided with an output copper sheet fixing screw hole matched with the output copper sheet (4), and an output copper sheet fixing screw (3) is arranged in the output copper sheet fixing screw hole in a threaded manner.
9. The ultra-deep cavity filter design processing method according to claim 1, wherein the method comprises the following steps: the resonant column (13) provided with the input copper sheet (7) is provided with an input copper sheet fixing screw hole matched with the input copper sheet (7), and an input copper sheet fixing screw (6) is arranged in the input copper sheet fixing screw hole in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211291693.5A CN115458884B (en) | 2022-10-20 | 2022-10-20 | Ultra-deep cavity filter design processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211291693.5A CN115458884B (en) | 2022-10-20 | 2022-10-20 | Ultra-deep cavity filter design processing method |
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| Publication Number | Publication Date |
|---|---|
| CN115458884A CN115458884A (en) | 2022-12-09 |
| CN115458884B true CN115458884B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211291693.5A Active CN115458884B (en) | 2022-10-20 | 2022-10-20 | Ultra-deep cavity filter design processing method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011021353A1 (en) * | 2009-08-21 | 2011-02-24 | パナソニック株式会社 | Filter apparatus and manufacturing method thereof |
| CN108123194A (en) * | 2016-11-30 | 2018-06-05 | 凯镭思通讯设备（上海）有限公司 | A kind of thin-walled stretches cavity body filter and production method |
| CN212434806U (en) * | 2020-09-01 | 2021-01-29 | 苏州诺泰信通讯有限公司 | Filter containing filling medium |
| WO2022007467A1 (en) * | 2020-07-05 | 2022-01-13 | 华沣通信科技有限公司 | Inverted mount-type filter structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022106266A1 (en) * | 2020-11-19 | 2022-05-27 | Commscope Italy S.R.L. | Resonant cavity filters with dielectric resonator assemblies mounted directly on the floor of the filter housing |
-
2022
- 2022-10-20 CN CN202211291693.5A patent/CN115458884B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011021353A1 (en) * | 2009-08-21 | 2011-02-24 | パナソニック株式会社 | Filter apparatus and manufacturing method thereof |
| CN108123194A (en) * | 2016-11-30 | 2018-06-05 | 凯镭思通讯设备（上海）有限公司 | A kind of thin-walled stretches cavity body filter and production method |
| WO2022007467A1 (en) * | 2020-07-05 | 2022-01-13 | 华沣通信科技有限公司 | Inverted mount-type filter structure |
| CN212434806U (en) * | 2020-09-01 | 2021-01-29 | 苏州诺泰信通讯有限公司 | Filter containing filling medium |
Non-Patent Citations (1)
| Title |
|---|
| 一种新型小型化窄带腔体滤波器的设计;刘元昆;杨青慧;张怀武;;压电与声光;20181215(06);全文 * |
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| CN115458884A (en) | 2022-12-09 |
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