CN107123843A - A kind of wave filter - Google Patents
A kind of wave filter Download PDFInfo
- Publication number
- CN107123843A CN107123843A CN201710468458.3A CN201710468458A CN107123843A CN 107123843 A CN107123843 A CN 107123843A CN 201710468458 A CN201710468458 A CN 201710468458A CN 107123843 A CN107123843 A CN 107123843A
- Authority
- CN
- China
- Prior art keywords
- cavity
- wave filter
- blind
- low pass
- tap piece
- 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.)
- Pending
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention relates to a kind of wave filter, including resonator, the resonator includes cavity and the cover plate installed in cavity hatch end, low pass is provided with the cavity, tuning screw, in addition to blind-mating connector and SMP connectors are installed, the SMP connectors are arranged on the cover plate on the cover plate, and its terminal is extend into the cavity, it is connected with the blind-mating connector being arranged in cavity；The blind-mating connector is connected to the first end of the low pass by the first tap piece.The wave filter that the present invention is provided, by the way that SMP connectors are fixed on the cover board, it is not necessary to extra increase support base and the part for realizing shielding, the space-consuming of part is reduced, so that the design of wave filter can more make full use of the spatial volume of cavity, row's chamber layout is more flexible；Blind-mating connector instead of CA cable assembly, not only reduces cost, also reduces the Insertion Loss of wave filter, with advantages of good shielding performance, and EMC test percent of pass is high, and assembling is simple, saves man-hour advantage.
Description
【Technical field】
The present invention relates to filter field, more particularly to a kind of wave filter applied to mobile radio system.
【Background technology】
Wave filter is widely used in various GSMs as a critical component of GSM,
Current mobile communication equipment tends in small-sized, light weight, slim, high performance evolution, to passage Insertion Loss, EMC tests, assembling
Convenience propose requirements at the higher level, it is more excellent to meet overall performance, the need for the disposable percent of pass of product is higher.
Generally connected at existing filter output mouthful in the way of connector tail end welding cable, in order to realize filtering
Connector, can only be fixed in cavity by the assembling capacity and signal shielding of device, in addition it is also necessary to increase support base and shielding cushion rubber etc.
Part, this way is virtually occupying spatial volume, and CA cable assembly cost itself is higher, is unfavorable for current mobile logical
Believe that equipment tends to small-sized, light weight, slim, high performance developing direction.
【The content of the invention】
In order to overcome above mentioned problem, the invention provides a kind of wave filter.
A kind of wave filter that the present invention is provided, including resonator, the resonator include cavity and installed in the chamber
The cover plate of body openend, is provided with low pass, the cover plate in the cavity and is provided with tuning screw, in addition to blind-mating connector and
SMP connectors, the SMP connectors are arranged on the cover plate, and its terminal is extend into the cavity, with being arranged on cavity
Interior blind-mating connector connection；The blind-mating connector is connected to the first end of the low pass by the first tap piece.
As a kind of preferred scheme, the inwall of the cavity is provided with mounting groove, and the blind-mating connector is assembled in the peace
In tankage.
As a kind of preferred scheme, the first tap piece is provided with through hole, and the terminal of the blind-mating connector penetrates institute
State and be connected in through hole with the first tap piece.
As a kind of preferred scheme, projection is provided with the cavity, the projection is connected with the both sides inwall of the cavity
Special composition, the low pass is arranged in the space, and the back side of the cover plate is abutted against at the top of the low pass.
As a kind of preferred scheme, resonant column and resonant column mounting seat, the resonant column peace are additionally provided with the cavity
It is attached in the resonant column mounting seat.
As a kind of preferred scheme, the resonant column mounting seat is provided with projection, the second end and the second tap of the low pass
One end connection of piece, the other end of the second tap piece is fixed in the projection by fastener.
As a kind of preferred scheme, the low pass includes the high-impedance transmission line and low impedance transmission line of alternate connection, with
And it is connected to the impedance matching transmission line at two ends.
As a kind of preferred scheme, the low pass first end and the second end respectively have a tap piece mounting groove, for dividing
First tap piece and the second tap piece are not installed.
As a kind of preferred scheme, the first tap piece and the second tap piece difference are L-shaped.
As a kind of preferred scheme, one end of the tuning screw is entered in the cavity through the cover plate, and from
Opening at the top of the resonant column extend into the inside of resonant column, and the other end of the tuning screw is by nut check described
On cover plate.
The wave filter that the present invention is provided, by the way that SMP connectors are fixed on the cover board, it is not necessary to extra increase support base and
The part of shielding is realized, the space-consuming of part is reduced so that the design of wave filter can more make full use of the space body of cavity
Product, row's chamber layout is more flexible；Blind-mating connector instead of CA cable assembly, not only reduces cost, also reduces the Insertion Loss of wave filter,
With advantages of good shielding performance, EMC test percent of pass is high, and assembling is simple, saves man-hour advantage.
【Brief description of the drawings】
The filter construction schematic diagram that Fig. 1 provides for one embodiment of the invention；
Fig. 2 is the top view of wave filter shown in Fig. 1；
Fig. 3 is the decomposing schematic representation of wave filter shown in Fig. 1；
Fig. 4 is the front cross-sectional schematic diagram of wave filter shown in Fig. 1；
Fig. 5 is the structural representation of the low pass of wave filter shown in Fig. 1.
【Embodiment】
Below in conjunction with Figure of description and embodiment, the invention will be further described.
With reference to Fig. 1 and Fig. 2, a kind of wave filter 100 of single resonance chamber is present embodiments provided, it includes cavity 10 and peace
Cover plate 20 mounted in the openend of cavity 10.Wave filter 100 also includes installing tuning screw 201 and SMP connectors on the cover board
60。
Cover plate 20 is provided with the through hole for being respectively used to install tuning screw 201 and SMP connectors 60.The one of tuning screw 201
End is extend into cavity 10 through the through hole on cover plate 20, and its other end is then locked on cover plate 20 by nut 203.By turning
Dynamic tuning screw 201, the depth degree that adjustable tuning screw 201 is extend into cavity 10.The terminal 62 of SMP connectors 60 is worn
Cross after the through hole on cover plate 20, extend into cavity 10.
With reference to Fig. 3 and Fig. 4, cavity 10 is internally formed a long and narrow chamber.Inside cavity 10 provided with resonant column 30,
Low pass 40 and blind-mating connector 50.Bottom in cavity 10 is provided with projection 45, and the inside of cavity 10 is separated into by the projection 45
Two points of chambers, resonant column 30 is separately positioned on a point intracavitary with blind-mating connector 50.
Point cavity wall where blind-mating connector 50 is provided with mounting groove 15, the assembly by way of crimping of blind-mating connector 50
In mounting groove 15.Mounting groove 15 is right against the lower section of SMP connectors 60, and the terminal 62 of SMP connectors 60 is right against blindmate company
Connect the jack of device 50, thus the terminal 62 of SMP connectors 60 can abutting joint into the jack of blind-mating connector 50.
The top of resonant column 30 is provided with opening, and is additionally provided with through hole in the bottom of resonant column.Point where resonant column 30
Intracavitary be provided with for fixing resonance post 30 resonant column mounting seat 35, resonant column 30 by fasteners such as screw rod or screws, Gu
Determine onto resonant column mounting seat 35.The opening at the top of resonant column 30 faces the tuning screw 201 extending into cavity, tunes spiral shell
Bar 201 is extend into inside resonant column 30 from the opening at the top of resonant column 30.
The both sides inwall of projection 45 and cavity 10 connects and composes a space, and low pass 40 is arranged in space, and positioned at convex
The top of block 45.The top of low pass 40 and the back side of cover plate 20 against.Blind-mating connector 50 is located at low pass respectively with resonant column 30
40 axial two ends.
As shown in figure 5, low pass 40 includes the high-impedance transmission line 43 and low impedance transmission line 44 of alternate connection, and respectively
Connect the impedance matching transmission line 46 at two ends.The first end 40a of low pass 40 and the second end 40b are respectively equipped with tap piece mounting groove
47, tap piece mounting groove 47 is used to be respectively mounted the first tap piece 71 and the second tap piece 73.
The first tap piece 71 and the second tap piece 73 in the present embodiment are " L " shape structure, vertical with one respectively
End and a horizontal ends.The vertical end of first tap piece 71 is arranged in the first end 40a of low pass tap piece mounting groove 47, its
Horizontal ends are provided with a through hole and extend into the mounting groove 15 at the place of blind-mating connector 50.The terminal 52 of blind-mating connector 50 is worn
Cross after the through hole in horizontal ends, be connected by way of welding with the first tap piece 71.
The vertical end of second tap piece 73 is arranged in the second end of low pass 40b tap piece mounting groove 47, and its horizontal ends is set
There is a through hole.A projection 75 is additionally provided with resonant column mounting seat 35, projection is provided with threaded mounting hole.Screw rod or bolt
After the through hole that the second tap piece 73 is passed through Deng fastener, in the mounting hole for being installed to projection 75, the mode being connected through a screw thread, from
And the horizontal ends of the second tap piece 73 are fixed in projection 75.
The wave filter that the present invention is provided, by the way that SMP connectors are fixed on the cover board, it is not necessary to extra increase support base and
The part of shielding is realized, the space-consuming of part is reduced so that the design of wave filter can more make full use of the space body of cavity
Product, row's chamber layout is more flexible；Blind-mating connector instead of CA cable assembly, not only reduces cost, also reduces the Insertion Loss of wave filter,
With advantages of good shielding performance, EMC test percent of pass is high, and assembling is simple, saves man-hour advantage.
For the person of ordinary skill of the art, without departing from the inventive concept of the premise, if can also make
Dry modification and improvement, these belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended right
It is required that being defined.
Claims (10)
1. a kind of wave filter (100), including resonator, the resonator include cavity (10) and installed in the cavity hatch
It is provided with the cover plate (20) at end, the cavity (10) on low pass (40), the cover plate (20) and tuning screw (201) is installed, its
It is characterised by, in addition to blind-mating connector (50) and SMP connectors (60), the SMP connectors (60) are installed in the cover plate
On, and its terminal (62) extend into the cavity (10), is connected with the blind-mating connector (50) being arranged in cavity；It is described blind
Socket, connector (50) is connected to the first end (40a) of the low pass by the first tap piece (71).
2. wave filter according to claim 1, it is characterised in that the inwall of the cavity is provided with mounting groove (15), described
Blind-mating connector (50) is assembled in the mounting groove (15).
3. wave filter according to claim 2, it is characterised in that the first tap piece (71) is provided with through hole, described
The terminal (52) of blind-mating connector (50) is penetrated to be connected in the through hole with the first tap piece (71).
4. wave filter according to claim 1, it is characterised in that be provided with projection (45) in the cavity, the projection with
The both sides inwall of the cavity connects and composes space, and the low pass (40) is arranged in the space, and low pass top against
The back side of the cover plate (20).
5. wave filter according to claim 1, it is characterised in that be additionally provided with the cavity (10) resonant column (30) and
Resonant column mounting seat (35), the resonant column (30) is installed on the resonant column mounting seat (35).
6. wave filter according to claim 5, it is characterised in that the resonant column mounting seat (35) is provided with raised (75),
The second end (40b) of the low pass is connected with one end of the second tap piece (73), and the other end of the second tap piece (73) leads to
Fastener is crossed to be fixed on raised (75).
7. wave filter according to claim 1, it is characterised in that the high impedance that the low pass (40) includes alternate connection is passed
Defeated line (43) and low impedance transmission line (44), and it is connected to the impedance matching transmission line (46) at two ends.
8. wave filter according to claim 6, it is characterised in that low pass (40) first end (40a) and the second end
(40b) respectively has a tap piece mounting groove (47), for being respectively mounted the first tap piece (71) and the second tap piece
(73)。
9. wave filter according to claim 8, it is characterised in that the first tap piece (71) and the second tap piece
(73) it is L-shaped respectively.
10. wave filter according to claim 5, it is characterised in that one end of the tuning screw (201) passes through the lid
Plate (20) is entered in the cavity, and extend into from the opening at the top of the resonant column inside of resonant column, the tuning spiral shell
The other end of bar is locked on the cover plate by nut (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710468458.3A CN107123843A (en) | 2017-06-20 | 2017-06-20 | A kind of wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710468458.3A CN107123843A (en) | 2017-06-20 | 2017-06-20 | A kind of wave filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107123843A true CN107123843A (en) | 2017-09-01 |
Family
ID=59719906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710468458.3A Pending CN107123843A (en) | 2017-06-20 | 2017-06-20 | A kind of wave filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107123843A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411854A (en) * | 2018-12-03 | 2019-03-01 | 东莞鸿爱斯通信科技有限公司 | Tap coupler structure |
| CN111816963A (en) * | 2020-06-12 | 2020-10-23 | 中国船舶重工集团公司第七二四研究所 | Ultra-wideband single-board integrated switch filter bank |
| CN112928909A (en) * | 2019-12-06 | 2021-06-08 | 重庆大及电子科技有限公司 | EMI filtering device |
| CN114094390A (en) * | 2021-11-11 | 2022-02-25 | 深圳国人科技股份有限公司 | Large-tolerance blind-mate connector and cavity filter |
| CN115360489A (en) * | 2022-09-21 | 2022-11-18 | 昆山立讯射频科技有限公司 | Filter |
| CN115411477A (en) * | 2022-09-21 | 2022-11-29 | 昆山立讯射频科技有限公司 | Filter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201830580U (en) * | 2010-04-01 | 2011-05-11 | 中兴通讯股份有限公司 | Base station |
| CN201887275U (en) * | 2010-11-17 | 2011-06-29 | 西安艾力特电子实业有限公司 | Small-sized radiofrequency integrated connector |
| CN202841057U (en) * | 2012-09-26 | 2013-03-27 | 成都嘉纳海威科技有限责任公司 | Thumb type ultra wide band radio-frequency frequency-conversion channel |
| CN203386872U (en) * | 2013-07-05 | 2014-01-08 | 深圳市大富科技股份有限公司 | Cavity filter |
| CN203859357U (en) * | 2014-05-09 | 2014-10-01 | 陕西华达科技股份有限公司 | SMP subminiature radio-frequency coaxial electric connector employing screw threads for fixation |
| CN204632890U (en) * | 2014-12-31 | 2015-09-09 | 深圳市大富科技股份有限公司 | Cavity body filter, connector, duplexer, radio frequency remote equipment |
| CN206864587U (en) * | 2017-06-20 | 2018-01-09 | 深圳市国人射频通信有限公司 | A kind of wave filter |
-
2017
- 2017-06-20 CN CN201710468458.3A patent/CN107123843A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201830580U (en) * | 2010-04-01 | 2011-05-11 | 中兴通讯股份有限公司 | Base station |
| CN201887275U (en) * | 2010-11-17 | 2011-06-29 | 西安艾力特电子实业有限公司 | Small-sized radiofrequency integrated connector |
| CN202841057U (en) * | 2012-09-26 | 2013-03-27 | 成都嘉纳海威科技有限责任公司 | Thumb type ultra wide band radio-frequency frequency-conversion channel |
| CN203386872U (en) * | 2013-07-05 | 2014-01-08 | 深圳市大富科技股份有限公司 | Cavity filter |
| CN203859357U (en) * | 2014-05-09 | 2014-10-01 | 陕西华达科技股份有限公司 | SMP subminiature radio-frequency coaxial electric connector employing screw threads for fixation |
| CN204632890U (en) * | 2014-12-31 | 2015-09-09 | 深圳市大富科技股份有限公司 | Cavity body filter, connector, duplexer, radio frequency remote equipment |
| CN206864587U (en) * | 2017-06-20 | 2018-01-09 | 深圳市国人射频通信有限公司 | A kind of wave filter |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411854A (en) * | 2018-12-03 | 2019-03-01 | 东莞鸿爱斯通信科技有限公司 | Tap coupler structure |
| CN112928909A (en) * | 2019-12-06 | 2021-06-08 | 重庆大及电子科技有限公司 | EMI filtering device |
| CN111816963A (en) * | 2020-06-12 | 2020-10-23 | 中国船舶重工集团公司第七二四研究所 | Ultra-wideband single-board integrated switch filter bank |
| CN114094390A (en) * | 2021-11-11 | 2022-02-25 | 深圳国人科技股份有限公司 | Large-tolerance blind-mate connector and cavity filter |
| CN115360489A (en) * | 2022-09-21 | 2022-11-18 | 昆山立讯射频科技有限公司 | Filter |
| CN115411477A (en) * | 2022-09-21 | 2022-11-29 | 昆山立讯射频科技有限公司 | Filter |
| CN115411477B (en) * | 2022-09-21 | 2023-10-31 | 苏州立讯技术有限公司 | Filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170901 |
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| RJ01 | Rejection of invention patent application after publication |