CN101841075A - Resonant tube - Google Patents
Resonant tube Download PDFInfo
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- CN101841075A CN101841075A CN200910180283A CN200910180283A CN101841075A CN 101841075 A CN101841075 A CN 101841075A CN 200910180283 A CN200910180283 A CN 200910180283A CN 200910180283 A CN200910180283 A CN 200910180283A CN 101841075 A CN101841075 A CN 101841075A
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- resonatron
- cavity
- erecting bed
- lateral wall
- mount pad
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Abstract
The invention relates to a technical field of microwave communication, in particular to a resonant tube. The resonant tube is arranged on a cavity filter. The cavity filter comprises a cavity, wherein the cavity is provided with a mounting pedestal; and the mounting pedestal is provided with an accommodating space. The resonant tube comprises a body, wherein the body comprises a first end and a second end; the first end sinks towards the second end to form a resonant space; the end of the second end away from the first end is provided with a mounting table; the outer side wall of the mounting table is provided with a plurality pieces of liner teeth along the direction from the first end to the second end; the linear teeth are protruded out of the outer side wall, so interference fit is formed between the resonant tube and the mounting pedestal after the mounting table is accommodated in the accommodating space; and the body is manufactured by processing in a cold upsetting mode.
Description
Technical field
The present invention relates to technical field of micro communication, relate in particular to a kind of resonatron.
Background technology
Filter is widely used in the communications field as a kind of frequency selection device, especially field of radio frequency communication.Finish in the base station that signal transmits and receives in communication system, filter is used to select signal of communication, clutter or interference signal that the filtering communication signal frequency is outer.
At present, in mobile communication base station system, the signal that generally uses cavity body filter to come antenna is transmitted and received carries out the frequency selection.Cavity body filter comprises cavity and cover plate, and this cavity is provided with a plurality of cavitys.Accommodate a resonatron in each cavity, described a kind of resonatron combines with cavity.
A kind of resonatron is installed on the described cavity by a screw usually, and is contained in the described cavity.Thus, a plurality of cavitys just need a plurality of screws, have not only increased the production cost of described cavity body filter, and described a plurality of screw are installed need be expended a large amount of time, can cause production bottleneck in large batch of production process, are unfavorable for enhancing productivity.Therefore, industry adopts the mode of welding that described a kind of resonatron is installed on the described cavity again.Because a kind of resonatron all has ring flange usually, and the space of described cavity is limited, be not easy to welding; Even the not flanged dish of described a kind of resonatron after described a kind of resonatron is welded in described cavity, solder joint and burr also occur easily, can influence very big to the frequency selectivity of described cavity body filter.
Summary of the invention
In view of this, the invention provides a kind of low-cost convenient install a kind of resonatron.
A kind of resonatron, be used to be installed in cavity body filter, described cavity body filter comprises cavity, described cavity is provided with mount pad, described mount pad is provided with receiving space, described a kind of resonatron comprises body, described body comprises first end and second end, described first end forms tuning space to described second concave end, described second end is provided with erecting bed away from the end of described first end, the lateral wall of described erecting bed is provided with many line teeth along described first end to the second extreme direction, described line tooth protrudes in described lateral wall, after making described erecting bed be contained in described receiving space, form interference fit between described a kind of resonatron and the described mount pad, described body is processed into by header system.
Described a kind of resonatron, wherein, described a kind of resonatron also comprises flange, described flange combines with the end of described first end away from described second end.
Described a kind of resonatron, wherein, described many line teeth are spacedly distributed on the lateral wall of described erecting bed.
Described a kind of resonatron, wherein, described body is cylinder bodily form strip, and described tuning space is similar to the shape of described body with described erecting bed, and the radial dimension of described erecting bed is less than the radial dimension of described body.
Described a kind of resonatron, wherein, the quantity of described line tooth is six.
Described a kind of resonatron, wherein, described second end is provided with outer chamfering away from the end of described first end.
By erecting bed is set, and the lateral wall of described erecting bed is provided with many line teeth on above-mentioned a kind of resonatron, makes between the mount pad of described a kind of resonatron and described cavity body filter and forms interference fit.Described a kind of resonatron does not need to cooperate with described cavity by extra screw, has not only saved production cost, has saved the time that described screw is installed simultaneously yet.Further, described a kind of resonatron is with after described cavity combines, and the solder joint or the burr that occur in the time of can't occurring welding do not influence the frequency selectivity energy of described cavity body filter.
Description of drawings
Fig. 1 is the schematic diagram of a kind of resonatron of a better embodiment.
Fig. 2 is the vertical view of a kind of resonatron shown in Figure 1.
Fig. 3 is the generalized section after the described a kind of resonatron of Fig. 1 is installed on cavity body filter.
Embodiment
A kind of resonatron provided by the invention is used to be installed in cavity body filter, and described cavity body filter comprises cavity, is provided with a plurality of cavitys on described cavity.Be provided with a plurality of mount pads on described cavity, described a plurality of mount pads are contained in the described cavity, and are positioned at the center position of described cavity bottom.Described a kind of resonatron is provided with erecting bed, described erecting bed is used for cooperating with mount pad on the described cavity, and on the lateral wall of described erecting bed, be provided with many line teeth, this line tooth makes between described a kind of resonatron and the described erecting bed and forms interference fit, and then a kind of resonatron is fixed on the described cavity, and be contained in the described cavity.Described a kind of resonatron does not need to cooperate with described cavity by extra screw, has not only saved production cost, has saved the time that described screw is installed simultaneously yet.Further, described a kind of resonatron is with after described cavity combines, and the solder joint or the burr that occur in the time of can't occurring welding do not influence the frequency selectivity energy of described cavity body filter.
In order to describe a kind of resonatron provided by the invention in detail, and the situation that combines of described a kind of resonatron and described cavity, be elaborated below in conjunction with Figure of description 1 to Fig. 3.
Please consult Fig. 1 and Fig. 2 simultaneously, it is a kind of resonatron 100 of a better embodiment, and described a kind of resonatron 100 comprises body 110.Described body 110 cylindrical strips, it comprises first end 111 and second end 113.Middle mind-set second end 113 of described first end 111 is recessed to form tuning space 115, and described tuning space 115 is used for being stretched into by tuning screw and stretching out, to adjust resonance frequency.Described second end 113 is provided with erecting bed 117 away from the end of described first end 111.The lateral wall of described erecting bed 117 is provided with many along the line tooth 119 on described first end, 111 to second ends, 113 directions.Described line tooth 119 protrudes in described lateral wall, and described line tooth 119 is spacedly distributed on described lateral wall.Described second end 113 is provided with outer chamfering 118 away from the end of described first end 111.
In the present embodiment, described tuning space 115 is similar to the shape of described body 110, and described erecting bed 117 is similar to the shape of described body 110, and the radially radius of described erecting bed 117 is less than the radially radius of described second end 113.The number of described line tooth 119 is six, and described line tooth 119 is spacedly distributed on the lateral wall of described erecting bed 117.Described a kind of resonatron 100 is processed into by header system.
In other embodiments, described a kind of resonatron 100 can be with described flange 120, and the body 110 of described a kind of resonatron 100 can also be other shape, as cuboid, and hexahedron etc.Described a kind of resonatron 100 is processed into by modes such as die casting, stretchings.Described a kind of resonatron can also comprise flange.Described flange combines with the end of described first end 111 away from described second end 113.
The combination of described a kind of resonatron 100 and cavity body filter 200 sees also Fig. 3.Described cavity body filter 200 comprises cavity 210, is provided with a plurality of cavitys 211 on described cavity 210.On described cavity 210, also be provided with a plurality of mount pads 213.Described mount pad 213 is contained in the described cavity 211, and is positioned at the center position of described cavity 211 bottoms.Described mount pad 213 caves inward and forms receiving space 217.Described receiving space 217 is used to accommodate described erecting bed 117, make between described mount pad 213 and the described a kind of resonatron 100 and form interference fit, and then do not needing additionally to increase under the situation of screw combination, make between a kind of resonatron 100 and the described cavity body filter 200 and form stable bond, help reducing the production cost of described cavity body filter, also burr or solder joint can not occur simultaneously.
Claims (6)
1. resonatron, be used to be installed in cavity body filter, described cavity body filter comprises cavity, described cavity is provided with mount pad, described mount pad is provided with receiving space, described a kind of resonatron comprises body, described body comprises first end and second end, it is characterized in that: described first end forms tuning space to described second concave end, described second end is provided with erecting bed away from the end of described first end, the lateral wall of described erecting bed is provided with many line teeth along described first end to the second extreme direction, described line tooth protrudes in described lateral wall, after making described erecting bed be contained in described receiving space, form interference fit between described a kind of resonatron and the described mount pad, described body is processed into by header system.
2. a kind of resonatron as claimed in claim 1 is characterized in that: described a kind of resonatron also comprises flange, and described flange combines with the end of described first end away from described second end.
3. a kind of resonatron as claimed in claim 1 is characterized in that: described many line teeth are spacedly distributed on the lateral wall of described erecting bed.
4. a kind of resonatron as claimed in claim 1 is characterized in that: described body is cylinder bodily form strip, and described tuning space is similar to the shape of described body with described erecting bed, and the radial dimension of described erecting bed is less than the radial dimension of described body.
5. a kind of resonatron as claimed in claim 1 is characterized in that: the quantity of described line tooth is six.
6. a kind of resonatron as claimed in claim 1 is characterized in that: described second end is provided with outer chamfering away from the end of described first end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910180283 CN101841075B (en) | 2009-10-13 | 2009-10-13 | Resonant tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910180283 CN101841075B (en) | 2009-10-13 | 2009-10-13 | Resonant tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101841075A true CN101841075A (en) | 2010-09-22 |
| CN101841075B CN101841075B (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910180283 Active CN101841075B (en) | 2009-10-13 | 2009-10-13 | Resonant tube |
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| Country | Link |
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| CN (1) | CN101841075B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361108A (en) * | 2011-08-31 | 2012-02-22 | 深圳市大富科技股份有限公司 | Cavity filter, communication equipment and low pass filter |
| CN103094649A (en) * | 2013-01-25 | 2013-05-08 | 华为技术有限公司 | Cavity filter |
| CN104518264A (en) * | 2013-09-29 | 2015-04-15 | 深圳市大富科技股份有限公司 | Coaxial cavity filter, medium cavity filter and metal resonant column |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6114928A (en) * | 1997-11-10 | 2000-09-05 | Smith; Patrick | Mounting assemblies for tubular members used in RF filters |
| US20030052571A1 (en) * | 2000-07-17 | 2003-03-20 | Filtronic Lk Oy | Method for attaching resonator part |
| US20040257177A1 (en) * | 2003-06-19 | 2004-12-23 | Teuvo Haapalahti | Flanged inner conductor coaxial resonators |
| CN1965440A (en) * | 2005-01-07 | 2007-05-16 | 株式会社村田制作所 | Semi-coaxial cavity resonator, filter using the same, and communication apparatus using the same |
| CN200986958Y (en) * | 2006-01-20 | 2007-12-05 | 芯通科技（成都）有限公司 | Improved multi-cavity coaxial filter |
-
2009
- 2009-10-13 CN CN 200910180283 patent/CN101841075B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6114928A (en) * | 1997-11-10 | 2000-09-05 | Smith; Patrick | Mounting assemblies for tubular members used in RF filters |
| US20030052571A1 (en) * | 2000-07-17 | 2003-03-20 | Filtronic Lk Oy | Method for attaching resonator part |
| US20040257177A1 (en) * | 2003-06-19 | 2004-12-23 | Teuvo Haapalahti | Flanged inner conductor coaxial resonators |
| CN1965440A (en) * | 2005-01-07 | 2007-05-16 | 株式会社村田制作所 | Semi-coaxial cavity resonator, filter using the same, and communication apparatus using the same |
| CN200986958Y (en) * | 2006-01-20 | 2007-12-05 | 芯通科技（成都）有限公司 | Improved multi-cavity coaxial filter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361108A (en) * | 2011-08-31 | 2012-02-22 | 深圳市大富科技股份有限公司 | Cavity filter, communication equipment and low pass filter |
| CN103094649A (en) * | 2013-01-25 | 2013-05-08 | 华为技术有限公司 | Cavity filter |
| WO2014114265A1 (en) * | 2013-01-25 | 2014-07-31 | 华为技术有限公司 | Cavity filter |
| CN103094649B (en) * | 2013-01-25 | 2016-12-28 | 华为技术有限公司 | Cavity body filter |
| CN104518264A (en) * | 2013-09-29 | 2015-04-15 | 深圳市大富科技股份有限公司 | Coaxial cavity filter, medium cavity filter and metal resonant column |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101841075B (en) | 2013-03-06 |
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