CN202917644U - Structure for connecting of filter and LNA - Google Patents
Structure for connecting of filter and LNA Download PDFInfo
- Publication number
- CN202917644U CN202917644U CN 201220383765 CN201220383765U CN202917644U CN 202917644 U CN202917644 U CN 202917644U CN 201220383765 CN201220383765 CN 201220383765 CN 201220383765 U CN201220383765 U CN 201220383765U CN 202917644 U CN202917644 U CN 202917644U
- Authority
- CN
- China
- Prior art keywords
- filter
- lna
- connector
- syndeton
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000002184 metal Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012827 research and development Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 238000004512 die casting Methods 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
Provided by the utility model is a structure for connecting of a filter and an LNA. The structure comprises a filter formed by a metal resonator, a resonant cavity, and an insulating medium, a connector, an electronic circuit board and a bolt. One end of the connector and the filter are formed into one by machining or die casting; and the other end of the connector is provided with a screw hole and is fixedly connected with the electronic circuit board by the bolt. According to the utility model, the structure can be realized simply and the time delay adjusting range of the port is wide, thereby realizing good connection between an active device and a passive device. Moreover, great convenience is brought for the design of the filter and the cavity arrangement, thereby substantially reducing the research and development cost and the production cost.
Description
Technical field
The utility model relates to filter field, relates in particular to a kind of filter and LNA syndeton.
Background technology
Modern society, along with the development of mobile communications industry, the radio frequency resource is more and more nervous, and the frequency range that the communication system of various standards is used is more and more approaching, be easy to disturb the communication system of adjacent frequency band and make its cisco unity malfunction, thereby communication system is had higher requirement.Communication system is in order to strengthen the inhibition to adjacent frequency band, and the inhibition of all parts in the system all has much room for improvement, and is just higher for the requirement of main inhibiting filter, duplexer and mixer in communication system.
Concerning filter, exactly port consistency, machining accuracy there has been strict requirement, existing filter and LNA syndeton as shown in Figure 1, comprising: metal resonators 1, resonant cavity 2, the silver-colored line 3 of transmission, dielectric 4, electronic circuit board (LNA) 5; Transmit silver-colored line 3 one ends and metal resonators 1 welding, the other end is welded and fixed with electronic circuit board 5 through insulation medium 4.So just need regeneration to produce in the process of assembling, repeatedly employ flatiron, and because the inconsistency of operation, the difference that causes the port time delay, particularly when port cavity has capacitive cross coupling, more can bring capacitively coupled inconsistent, need to ceaselessly change supporter, will cause like this debugging of filter inconsistent, simultaneously when the port delay requirement is stronger, the port delay requirement of filter also can not be satisfied in the top that silver-colored line is welded to resonator, then needs to change copper sheet, has brought larger trouble so just for welding and consistency.
Besides since the change of port time delay cause debugging the inconsistent of screw rod, in debug process because otherwise stop changing screw rod, increase debug time, because debugging screw rod inconsistent increased material more, cause unnecessary waste simultaneously.Meeting appearance that What is more is owing to silver-colored line is inconsistent, and time delay exceeds the required scope of filter, causes the debugging of filter or duplexer not out, causes the prolongation of R﹠D cycle, the reduction of production efficiency, the increase of production cost.
The utility model content
The purpose of this utility model is to provide a kind of filter and LNA syndeton, has easy and simple to handlely, and port delay adjusting wide ranges is characteristics all.
The purpose of this utility model is achieved through the following technical solutions.
A kind of filter and LNA syndeton, comprise the filter, connector, electronic circuit board and the screw that are formed by metal resonators, resonant cavity, dielectric, described connector one end and filter add by machine or are cast into one, and the other end of described connector is provided with screwed hole and is fixedly connected with described electronic circuit board by screw.
Preferably, described connector one end and described metal resonators add by machine or are cast into one.
Preferably, an end of described connector and described resonant cavity add by machine or are cast into one.
Preferably, an end of described connector and described resonant cavity and metal resonators add by machine or are cast into one.
Preferably, described connector is cylinder or rectangular structure.
Preferably, described screw is silver-plated pan head screw.
Preferably, described electronic circuit board is positioned at the bottom of resonant cavity.
Preferably, described electronic circuit board is positioned at the top of resonant cavity.
Preferably, described filter also comprises a tuning cover plate, and described tuning cover plate is provided with tuning screw.
Preferably, the height of described connector and described LNA contact-making surface level.
The utility model compared with prior art, beneficial effect is: the filter that the utility model provides and LNA syndeton, realize simple, port delay adjusting wide ranges, thereby can realize actively well being connected with passive device, and for the design of filter and cavity layout have all been brought convenience, thereby greatly reduce research and development, production cost.
Description of drawings
Fig. 1 is existing filter and LNA syndeton cutaway view;
Fig. 2 is the utility model embodiment 1 filter and LNA syndeton cutaway view;
Fig. 3 is the utility model embodiment 2 filters and LNA syndeton cutaway view;
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also shown in Figure 2ly, the filter that the utility model provides and LNA syndeton comprise: metal resonators 1, resonant cavity 2, connector 6, dielectric 4, electronic circuit board 5, screw 7; One end of connector 6 and metal resonators 1 add by machine or are cast into one, and the other end of connector 6 is provided with screwed hole, and electronic circuit board 5 is positioned at the bottom of resonant cavity 2, and connector 6 passes dielectric 4 and is fixedly connected with electronic circuit board 5 by screw 7.
In the said structure, the height that can be connected with metal resonators by connector and the external diameter of connector are controlled required stiffness of coupling.
See also shown in Figure 3ly, the another kind of structure that the filter that the utility model provides is connected with LNA comprises: metal resonators 1, resonant cavity 2, connector 6, dielectric 4, electronic circuit board 5, screw 7, tuning cover plate 8, tuning screw 9; One end of connector 6 and resonant cavity 2 add by machine or are cast into one, the other end of connector 6 is provided with screwed hole, electronic circuit board 5 is positioned at the top of resonant cavity 2, and connector 6 passes tuning cover plate 8 and dielectric 4 is fixedly connected with electronic circuit board 5 by screw 7.On tuning cover plate 8, be provided with tuning screw 9.
In the said structure, also connector and resonant cavity and metal resonators can be made of one structure, thereby better improve the consistency of product, and save cost.
In the said structure, can regulate by the thickness of the spacing between adjusting connector and the metal resonators or connector the power of port coupling.
In the utility model, the shape of described connector can be cylinder, cuboid etc.
In the utility model, described screw is silver-plated pan head screw.
In the utility model, the height of connector and active LNA contact-making surface level, screw not only plays connection function simultaneously, also can a good fixation be arranged to Active plate.
The filter that the utility model provides and LNA syndeton, realize simple, port delay adjusting wide ranges, thus can realize actively well being connected with passive device, and for the design of filter and cavity layout have all been brought convenience, thereby greatly reduce research and development, production cost.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. a filter and LNA syndeton, comprise the filter, connector, electronic circuit board and the screw that are formed by metal resonators, resonant cavity, dielectric, it is characterized in that, described connector one end and filter add by machine or are cast into one, and the other end of described connector is provided with screwed hole and is fixedly connected with described electronic circuit board by screw.
2. filter as claimed in claim 1 and LNA syndeton is characterized in that, described connector one end and described metal resonators add by machine or be cast into one.
3. filter as claimed in claim 1 and LNA syndeton is characterized in that, an end of described connector and described resonant cavity add by machine or be cast into one.
4. filter as claimed in claim 1 and LNA syndeton is characterized in that, an end of described connector and described resonant cavity and metal resonators add by machine or be cast into one.
5. filter as claimed in claim 1 and LNA syndeton is characterized in that, described connector is cylinder or rectangular structure.
6. filter as claimed in claim 1 and LNA syndeton is characterized in that, described screw is silver-plated pan head screw.
7. filter as claimed in claim 2 and LNA syndeton is characterized in that, described electronic circuit board is positioned at the bottom of resonant cavity.
8. such as claim 3 or 4 described filters and LNA syndeton, it is characterized in that described electronic circuit board is positioned at the top of resonant cavity.
9. such as claim 3 or 4 described filters and LNA syndeton, it is characterized in that described filter also comprises a tuning cover plate, described tuning cover plate is provided with tuning screw.
10. such as claim 3 or 4 described filters and LNA syndeton, it is characterized in that the height of described connector and described LNA contact-making surface level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383765 CN202917644U (en) | 2012-08-03 | 2012-08-03 | Structure for connecting of filter and LNA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383765 CN202917644U (en) | 2012-08-03 | 2012-08-03 | Structure for connecting of filter and LNA |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202917644U true CN202917644U (en) | 2013-05-01 |
Family
ID=48165924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220383765 Expired - Fee Related CN202917644U (en) | 2012-08-03 | 2012-08-03 | Structure for connecting of filter and LNA |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202917644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016106703A1 (en) * | 2014-12-31 | 2016-07-07 | 深圳市大富科技股份有限公司 | Cavity filter and installation method therefor |
| CN112952321A (en) * | 2019-12-11 | 2021-06-11 | 深圳市大富科技股份有限公司 | Filter assembly and communication equipment |
-
2012
- 2012-08-03 CN CN 201220383765 patent/CN202917644U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016106703A1 (en) * | 2014-12-31 | 2016-07-07 | 深圳市大富科技股份有限公司 | Cavity filter and installation method therefor |
| CN112952321A (en) * | 2019-12-11 | 2021-06-11 | 深圳市大富科技股份有限公司 | Filter assembly and communication equipment |
| CN112952321B (en) * | 2019-12-11 | 2022-09-06 | 大富科技(安徽)股份有限公司 | Filter assembly and communication equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20150803 |
|
| EXPY | Termination of patent right or utility model |