CN201259915Y - Cavity filter - Google Patents
Cavity filter Download PDFInfo
- Publication number
- CN201259915Y CN201259915Y CNU2008201471401U CN200820147140U CN201259915Y CN 201259915 Y CN201259915 Y CN 201259915Y CN U2008201471401 U CNU2008201471401 U CN U2008201471401U CN 200820147140 U CN200820147140 U CN 200820147140U CN 201259915 Y CN201259915 Y CN 201259915Y
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- CN
- China
- Prior art keywords
- cavity
- filter
- resonance post
- utility
- model
- 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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Abstract
The utility model belongs to the field of filters and provides a cavity filter; a cavity and a resonance column are manufactured into one body by die casting, the resonance column is fused in the cavity by the die casting; the integration of the resonance column and the cavity reduces working procedures of machine processing and assembling and improves production efficiency; in addition, the performance of the filter is more stable. The main purpose of the filter is that the filter is mainly applied to radio-frequency front-end modules for various filtering purposes; the filter mainly comprises filters in different series such as C net, G net, PHS, DCS, TD-SCDMA, WCDMA, WLAN and the like.
Description
Technical field
The utility model belongs to wireless telecommunications radio-frequency front-end technical field, relates in particular to a kind of cavity body filter.
Background technology
The rf filtering device belongs to the front-end filtering device of telecommunication equipment, its basic function is the outer signal of filtering useful band, the filtering device that the resonance post is formed is the main filtering devices of wireless telecommunications with repeater, base station front end, because resonance post consumption is big, therefore in the filtering device cost structure, occupy very big ratio.
Yet at present the resonance post adopts independent machine work, and this mode can increase produces and assembly process, causes production cost higher, and production efficiency is low, and causes the defective of the compactness difference that the resonance post is connected with cavity in assembling process easily.
The utility model content
The purpose of this utility model is to provide a kind of cavity body filter, is intended to solve the independent machine work of resonance post in the prior art, the problem that production cost is higher.
In order to solve the problems of the technologies described above, cavity and resonance post are integrally manufactured in the cavity body filter of the present utility model.
Compared with prior art, the beneficial effects of the utility model are: owing to adopted resonance post and cavity rheo-die-casting are integral, reduced back processing, assembling and production process, it has, and production cost is low, production efficiency is high, compactness is good, insert the little advantage of loss.
Description of drawings
Fig. 1 is the schematic top plan view of the preferred embodiment that provides of the utility model;
Fig. 2 is the sectional view of A-A line among Fig. 1;
Fig. 3 is the sectional view of B-B line among Fig. 1.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As Fig. 1, shown in Figure 3, the utility model embodiment resonance post 1 rheo-die-casting in cavity 2 and with cavity 2 integrally manufactured moulding, promptly all resonance posts 1 are connected as one with cavity 2 die casting, processing of resonance post and assembly cost have been reduced, enhance productivity, conformity of production is good, and the insertion loss is little.
As shown in Figure 2, for ease of being connected of the utility model and other associated members such as connector (not drawing among the figure), among the utility model embodiment, partial resonance post 1 bottom is outward extended with a step 3 in the described cavity 2, constitute tap place resonance post 4, on the step 3, the other end and connector welded as described in connection copper sheet (not drawing among a figure) end can be fixed on by connector (as brass screw).Behind resonance post 1 and cavity 2 die casts, resonance post 1 also needs the back processed with tap place resonance post 4 tops, to guarantee electrical performance indexes.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1, a kind of cavity body filter comprises cavity and resonance post, it is characterized in that, described cavity and described resonance post are integrally manufactured.
2, cavity body filter as claimed in claim 1 is characterized in that, described resonance post is blended in the cavity resonance post by the die casting mode.
3, cavity body filter as claimed in claim 1 is characterized in that, described resonance column bottom is outward extended with a step, constitutes tap place resonance post.
4, cavity body filter as claimed in claim 3 is characterized in that, on the step of described tap place resonance post by connector be fixed with one can with the copper sheet of connector welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201471401U CN201259915Y (en) | 2008-09-02 | 2008-09-02 | Cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201471401U CN201259915Y (en) | 2008-09-02 | 2008-09-02 | Cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201259915Y true CN201259915Y (en) | 2009-06-17 |
Family
ID=40774152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201471401U Expired - Fee Related CN201259915Y (en) | 2008-09-02 | 2008-09-02 | Cavity filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201259915Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950842A (en) * | 2010-08-18 | 2011-01-19 | 奥维通信股份有限公司 | Manufacturing method of device with cavities |
| CN102074776A (en) * | 2010-12-24 | 2011-05-25 | 深圳市大富科技股份有限公司 | Cavity filter and manufacturing method thereof, communication equipment and radio-frequency communication device |
| CN102136617A (en) * | 2010-12-31 | 2011-07-27 | 深圳市大富科技股份有限公司 | Cavity filter, signal processing module and communication equipment |
| WO2012022201A1 (en) * | 2010-08-20 | 2012-02-23 | 深圳市大富科技股份有限公司 | Cavity filter and method for manufacturing cavity filter |
-
2008
- 2008-09-02 CN CNU2008201471401U patent/CN201259915Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950842A (en) * | 2010-08-18 | 2011-01-19 | 奥维通信股份有限公司 | Manufacturing method of device with cavities |
| WO2012022201A1 (en) * | 2010-08-20 | 2012-02-23 | 深圳市大富科技股份有限公司 | Cavity filter and method for manufacturing cavity filter |
| CN102074776A (en) * | 2010-12-24 | 2011-05-25 | 深圳市大富科技股份有限公司 | Cavity filter and manufacturing method thereof, communication equipment and radio-frequency communication device |
| CN102136617A (en) * | 2010-12-31 | 2011-07-27 | 深圳市大富科技股份有限公司 | Cavity filter, signal processing module and communication equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN XINGLIDA COMMUNICATION CO., LTD. Free format text: FORMER OWNER: SHENZHEN WINHAP COMMUNICATIONS INC. Effective date: 20120209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518048 SHENZHEN, GUANGDONG PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120209 Address after: 518000, Guangdong, Shenzhen, Xixiang, Baoan District hang Chau Hengfeng Industrial City, B20 building, 2-3 floor, B10 building, sixth floors East Patentee after: Shenzhen Xinglida Communication Co., Ltd. Address before: 518048, Shenzhen, Guangdong, Futian District, Che Kung Temple, Tian Tian Digital City, CD building, F5.8 building, building 8 Patentee before: Shenzhen Winhap Communications Inc. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20130902 |