CN207116648U - Bandstop filter - Google Patents
Bandstop filter Download PDFInfo
- Publication number
- CN207116648U CN207116648U CN201721116553.9U CN201721116553U CN207116648U CN 207116648 U CN207116648 U CN 207116648U CN 201721116553 U CN201721116553 U CN 201721116553U CN 207116648 U CN207116648 U CN 207116648U
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- CN
- China
- Prior art keywords
- coupling arm
- coupling
- resonator
- connector
- kink
- 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 discloses bandstop filter, including housing, the coupling piece of sheet U-shaped is provided with housing, coupling piece includes the first coupling arm, second coupling arm and kink, first coupling arm one end is connected by kink with second coupling arm one end, the first coupling arm other end is connected with the first connector, the second coupling arm other end is connected with the second connector, kink is connected with the 3rd connector, band logical resonator is provided between first coupling arm and the second coupling arm, first coupling arm and the second coupling arm are respectively connected with several spiral-like belts resistance line, spiral-like belt resistance line is arranged in band resistance resonator.The utility model small volume, light weight, coupling accuracy is high, couples bandwidth, and case material cost and machining cost decline to a great extent, light structure, very easily can also be attached with existing POI equipment, saves material and cost of labor.
Description
Technical field
It the utility model is related to communication radio frequency field, and in particular to bandstop filter.Inputted suitable for different base station multichannel
The combining of output equipment.
Background technology
The existing mobile communications network in China has the systems such as LTE, WCDMA, CDMA2000, TD-SCDMA at present.Even also
There are a GSM900/DCS1800 of China Mobile, the GSM900/ DCS1800 and CDMA800 of CHINAUNICOM, China Telecom, Netcom
PHS, WLAN, Digital Clustering and other communication systems.Outdoor location network signal can be covered by respective base station, room
Interior signal can solve by traditional indoor covering system.But each operator builds the covering system institute band of oneself respectively
The problems such as repeated construction come, is more and more prominent.For it is such the problem of, we have proposed POI（POINT OF
INTERFACE）, i.e. multisystem mixing platform solution.It is mainly used in heavy construction, the city for needing multiple-network system to access
In political affairs facility, such as large-scale museum, subway, railway station, airport, government office place.The POI products realize multifrequency
Section, multi signal combining function, avoid the overlapping investment of indoor distributed system construction, are that one kind realizes that Multi net voting signal compatibility covers
Cover effective means.
In order to which the POI systems solved at present on the market will integrate multiband, multi signal combining function, Multi net voting signal is realized
Compatibility covers the problems such as caused equipment enlarging, even large, so we, which have customized, can effectively solve this
The bandstop filter of the utility model of one problem.Its advantages of is LTE frequency range coupler small volumes, and light weight, coupling accuracy is high,
Couple bandwidth, case material cost and machining cost decline to a great extent, light structure, can also very easily with it is existing
POI equipment is integrated, and saves material and cost of labor.
Utility model content
The purpose of this utility model is to overcome prior art defect, there is provided bandstop filter.Small volume, light weight, coupling
It is high to close precision, couples bandwidth, is easy to be integrated in the equipment such as POI.
The utility model is achieved through the following technical solutions：
Bandstop filter, including housing, are provided with the coupling piece of sheet U-shaped in housing, coupling piece include the first coupling arm,
Second coupling arm and kink, first coupling arm one end are connected by kink with second coupling arm one end, and the first coupling arm is another
One end is connected with the first connector, and the second coupling arm other end is connected with the second connector, and kink is connected with the 3rd connector,
Be provided with band logical resonator between first coupling arm and the second coupling arm, the first coupling arm and the second coupling arm respectively with it is some
Individual spiral-like belt resistance line connection, spiral-like belt resistance line are arranged in band resistance resonator.
Integrated connection between first coupling arm as described above, the second coupling arm and kink.
Band resistance resonator as described above is distributed in band logical resonator both sides.
The utility model compared with the prior art, has advantages below：
Small volume, light weight, coupling accuracy are high, couple bandwidth, case material cost and machining cost significantly under
Drop, light structure, very easily can also be attached with existing POI equipment, save material and cost of labor.
Brief description of the drawings
Fig. 1 is band logical resonator and the structural representation with resistance resonator；
Fig. 2 is the structural representation of coupling piece；
Fig. 3 is the structural representation that line is hindered with the spiral-like belt in resistance resonator.
In figure：1- spiral-like belts hinder line；2- housings；3- coupling pieces；The coupling arms of 301- first；The coupling arms of 302- second；
303- kinks；4- support columns；The connectors of 501- first；The connectors of 502- second；The connectors of 503- the 3rd；6- band logical resonance
Chamber；7- band resistance resonators.
Embodiment
The technical solution of the utility model is described in detail below in conjunction with accompanying drawing.
As shown in Figures 1 to 3, bandstop filter, including housing 2, the coupling piece 3 of sheet U-shaped, coupling are provided with housing 2
Piece 3 includes the first coupling arm 301, the second coupling arm 302 and kink 303, the one end of the first coupling arm 301 and passes through kink 303
It is connected with the one end of the second coupling arm 302, the other end of the first coupling arm 301 is connected with the first connector 501, the second coupling arm 302
The other end is connected with the second connector 502, and kink 303 is connected with the 3rd connector 503, the first coupling arm 301 and the second coupling
Close and be provided with band logical resonator 6 between arm 302, the first coupling arm 301 and the second coupling arm 302 respectively with several helical forms
Band resistance line 1 is connected, and spiral-like belt resistance line 1 is arranged in band resistance resonator 7.
Preferably, integrated connection between the first coupling arm 301, the second coupling arm 302 and kink 303.
Preferably, band resistance resonator 7 is distributed in the both sides of band logical resonator 6.
As shown in figure 1, band logical resonator 6 is located at the centre of whole housing 2, and it is integral with housing 2.
As shown in Fig. 2 the 3rd connector 503 as common port and the first connector 501, second as input port connect
Device 502 is connect in a plane.
As shown in figure 3, spiral-like belt resistance line 1 is welded on the first coupling arm 301 and the second coupling arm 302 of coupling piece 3,
So the height of whole device greatly reduces in spiral-like belt resistance line 1.
By being welded to connect between first coupling arm 301, the second coupling arm 302 and spiral-like belt resistance line 1；First coupling arm
301 and first connector 501 be welded to connect, the second coupling arm 302 and the second connector 502 are welded to connect；It is provided with housing 2
Band resistance resonator 7 and band logical resonator 6, wherein, band hinders the both sides that resonator 7 is located at housing 2, and band logical resonator 6 is located at housing 2
Centre；Band logical resonator 6（Including resonant rod）Connection integrated with housing 2, reduces material and welding, reduces installation and debugging
In man-hour, improve the intermodulation first-pass yield of product；Resonant rod with the inside of resistance resonator 7 hinders line 1 using spiral-like belt, with tradition
Metal resonant rod compare, material cost and processing cost are greatly decreased, and greatly speed up progress and the cycle of product, while resonance
The height of chamber is greatly reduced, and facility is provided for miniaturization；First connector 501, the second connector 502, the 3rd connector 503 can
To be directly connected by welding with coupling piece 3, reliability and economy are optimal.
Function of the spiral-like belt resistance line 1 in resistance resonator 7 is identical with resonant rod, adds screw rod with the resonant rod of routine
Structure is compared, and can significantly reduce the height of whole housing, while reduces the material cost of resonant rod and cavity, is accelerated
Production life cycle, realize that product minimizes.
Band logical resonator 6 and 2 integrated connection of housing, are then coupled by the coupling piece and with block cavities of sheet again.
So with using by screw rod by resonator compared with by the way of housing connects, can significantly improve third order intermodulation.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (3)
1. bandstop filter, including housing（2）, it is characterised in that housing（2）Inside it is provided with the coupling piece of sheet U-shaped（3）, coupling
Close piece（3）Including the first coupling arm（301）, the second coupling arm（302）And kink（303）, the first coupling arm（301）One end leads to
Cross kink（303）With the second coupling arm（302）One end connects, the first coupling arm（301）The other end and the first connector（501）
Connection, the second coupling arm（302）The other end and the second connector（502）Connection, kink（303）With the 3rd connector（503）
Connection, the first coupling arm（301）With the second coupling arm（302）Between be provided with band logical resonator（6）, the first coupling arm（301）
With the second coupling arm（302）Respectively line is hindered with several spiral-like belts（1）Connection, spiral-like belt resistance line（1）It is arranged on band resistance
Resonator（7）It is interior.
2. bandstop filter according to claim 1, it is characterised in that the first described coupling arm（301）, second coupling
Arm（302）And kink（303）Between integrated connection.
3. bandstop filter according to claim 1, it is characterised in that described band resistance resonator（7）It is distributed in band logical
Resonator（6）Both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721116553.9U CN207116648U (en) | 2017-09-01 | 2017-09-01 | Bandstop filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721116553.9U CN207116648U (en) | 2017-09-01 | 2017-09-01 | Bandstop filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207116648U true CN207116648U (en) | 2018-03-16 |
Family
ID=61574377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721116553.9U Expired - Fee Related CN207116648U (en) | 2017-09-01 | 2017-09-01 | Bandstop filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207116648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009709A (en) * | 2019-12-25 | 2020-04-14 | 京信通信技术(广州)有限公司 | Band elimination filter and combiner |
-
2017
- 2017-09-01 CN CN201721116553.9U patent/CN207116648U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009709A (en) * | 2019-12-25 | 2020-04-14 | 京信通信技术(广州)有限公司 | Band elimination filter and combiner |
| CN111009709B (en) * | 2019-12-25 | 2024-03-26 | 京信通信技术(广州)有限公司 | Band-stop filter and combiner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20210901 |