CN102683776A - EGSM duplex filtering module with connection band - Google Patents
EGSM duplex filtering module with connection band Download PDFInfo
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- CN102683776A CN102683776A CN2012101202232A CN201210120223A CN102683776A CN 102683776 A CN102683776 A CN 102683776A CN 2012101202232 A CN2012101202232 A CN 2012101202232A CN 201210120223 A CN201210120223 A CN 201210120223A CN 102683776 A CN102683776 A CN 102683776A
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Abstract
The invention discloses an EGSM (Enhanced Global System for Mobile Communication) duplex filtering module which comprises a case body, wherein a resonator cavity is formed in the case body, silver is plated on the inner wall of the resonator cavity, a plurality of installation holes are formed at the periphery of the resonator cavity, and a plurality of EGSM signal resonant frequency control rods are installed in the resonator cavity; a transmitting port SMA-KFD type connector is installed on the side of the case body, an antenna port SMA-KFD type connector and a receiving port SMA-KFD type connector are also installed on the side of the case body, and the transmitting port SMA-KFD type connector, the antenna port SMA-KFD type connector and the receiving port SMA-KFD type connector are connected to the EGSM signal resonant frequency control rods by EGSM signal input and output transmission lines; and a cover plate is arranged on the upper surface of the case body. According to the invention, two ports are directly connected to an internal signal transceiver by feeders, the other port is connected with a receiving and transmitting antenna at the top of an outdoor base station launching tower by a feeder, therefore, the EGSM duplex filtering module has the advantages of low loss, small external dimension, esthetic design, smooth signal transmission, convenience for installation and maintenance and the like.
Description
Technical field:
The present invention relates to the mobile communication equipment field, relate in particular to a kind of EGSM duplex filtration module with connecting band.
Background technology:
Existing antennas and transceiver input port are employed not to be low-loss, selective filter; All still adopt the irradiation structure and the multi-cavity resonance structure of solid type, bulky, complex structure; Processing difficulties has become the microminiaturized major obstacle of wireless communications products.Its main cause is that the radiation transformed space and the frequency resonance space of its institute's foundation is that the electrolyte constant approaches 1, the free air that loss is minimum.Opening up the electric constant of separating of various different sizes and also control, and separate the lower new material replacement free air of matter loss, is to realize antenna and filter complanation, microminiaturization and intelligentized major technique approach.
Therefore imagination provides a kind of low-loss high stability EGSM duplex filtration module, adopts the EGSM systems technology, only needs a 1.6MHz bandwidth, and FDD to be the cdma2000 of representative need 1.25 * 2 MHz bandwidth, WCDMA needs 5 * 2MHz to communicate by letter; Its voice spectrum utilance than WCDMA up to 2.5 times, data spectrum utilance even up to 3.1 times; Frequency range is fit to the multi-operator environment in pairs.Adopt a large amount of advanced technologies such as smart antenna, joint-detection and uplink synchronous, can reduce transmitting power, reduce multiple access and disturb, improve power system capacity; Can overcome the shortcoming that soft handover takies resource in a large number; Adopt the software radio advanced technology; Realize multi-standard base station and multimode terminal more easily; System is easier to upgrading; Be more suitable in the big city of GSM hot zones and at first build, adopt low-loss high stability EGSM duplex filtration module more be prone to support PTT professional with realize Digital Clustering of new generation.Can offset interference effectively, system can be worked under the condition of full code channel.Therefore, spectrum efficiency is high, can satisfy following expansion demand.
Summary of the invention:
The object of the invention just provides a kind of low-loss high stability EGSM duplex filtration module, is mainly used in mobile communication EGSM system receiving and transmitting signal duplexer filter spare.
The technical scheme that the present invention adopts is:
A kind of EGSM duplex filtration module with connecting band; Comprise box body: box body inside has resonant cavity; The resonant cavity inwall is silver-plated; Be provided with some installing holes around the resonant cavity, some EGSM signal resonance frequency control levers are installed in the resonant cavity, have connecting band between EGSM signal resonance frequency control lever; The box body side is equipped with emission port SMA-KFD type connector; The box body side also is equipped with antenna port SMA-KFD type connector and receiving port SMA-KFD type connector, and said emission port SMA-KFD type connector, antenna port SMA-KFD type connector, receiving port SMA-KFD type connector all are connected to EGSM signal resonance frequency control lever through the input of EGSM signal, output transmission line; Cartridge upper surface is provided with cover plate, has some through holes on the cover plate and matches with EGSM signal resonance frequency control lever, also is provided with some holes that install and fix on the cover plate and matches with the interior installing hole of box body.
The features of the shape of the cavity, the cavity was similar to the "Jiong" shaped and having a plurality of bent portions, EGSM signal lever resonant frequency distribution of spaced resonant cavity.
Compared with prior art, beneficial effect of the present invention is:
The present invention has two ports and directly is connected to the internal signal transceiver through feeder line; The other end uses feeder line to be connected in the sending and receiving antenna at outdoor base station launching tower top, and this low-loss high stability EGSM duplex filtration module mainly has plurality of advantages such as loss is little, overall dimensions are little, be designed beautifully, the signal transmission is unobstructed, convenient for installation and maintenance.
Description of drawings:
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is a covering plate structure sketch map of the present invention.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is done further explain through embodiment:
One kinds EGSM duplex filter module includes a box body: inside the casing 1 has opened a resonant cavity 2, the inner wall of the cavity 2, silver, resonant cavity 2 is provided with a plurality of mounting holes around 11, the cavity 2 is mounted a number of resonance signals EGSM frequency control lever 3, EGSM resonance frequency signal having a connection with a control rod 12; side of the casing 1 is mounted emitter SMA-KFD-type connector 4, the cartridge body 1 is also equipped with an antenna port side of the SMA-KFD-type connector 6 and the receive port SMA-KFD-type connector 7, transmit ports SMA-KFD-type connector 4, the antenna port SMA-KFD-type connector 6, the receiving port SMA-KFD-type connector 7 have passed the EGSM signal input and output transmission lines 5 EGSM resonant frequency signal is connected to the control lever 3; surface of the casing 1 is provided with a cover plate 8, the cover plate 8 has a plurality of through-holes 9 and the resonant frequency EGSM signal matched control lever 3, the cover is also provided with a number of fixed hole 10 of the cartridge body 1 is fitted a mounting hole 11, the shape of the cavity 2 is characterized by the resonator 2 was similar to the "Jiong" shaped and having a plurality of bent portions, EGSM resonant frequency signal control lever 3 located at spaced intervals 2 inside the cavity.
As shown in the figure it comprise resonant cavity.Resonant cavity mainly is used for transmitting signal and the needed technical indicator of product each item that is produced between each frequency, is a kind of microwave transmission line, and electric energy that is produced when powering up work and magnetic energy are stored at inside, chamber.Aerial lug spare is the reception of EGSM signal, emission, antenna port SMA-KFD type port connector; Be mainly used in the outside dual-mode antenna device of feeder line (transfer wire between link block and the antenna just) link block; And EGSM signal resonance frequency control lever, intra design model and silver coating; EGSM signal input, output transmission line (being used for being connected of intra and outside SMA-KFD type connector), cover plate.The low-loss high stability EGSM duplex filtration module that mainly combines by this eight big core technology component.
The foregoing description is merely preferred implementation of the present invention, and in addition, the present invention can also have other implementations.Need to prove that under the prerequisite that does not break away from the present invention's design, any conspicuous improvement and modification all should fall within protection scope of the present invention.
Claims (2)
1. EGSM duplex filtration module with connecting band; Comprise box body; It is characterized in that: box body inside has resonant cavity, and the resonant cavity inwall is silver-plated, is provided with some installing holes around the resonant cavity; Some EGSM signal resonance frequency control levers are installed in the resonant cavity, have connecting band between EGSM signal resonance frequency control lever; The box body side is equipped with emission port SMA-KFD type connector; The box body side also is equipped with antenna port SMA-KFD type connector and receiving port SMA-KFD type connector, and said emission port SMA-KFD type connector, antenna port SMA-KFD type connector, receiving port SMA-KFD type connector all are connected to EGSM signal resonance frequency control lever through the input of EGSM signal, output transmission line; Cartridge upper surface is provided with cover plate, has some through holes on the cover plate and matches with EGSM signal resonance frequency control lever, also is provided with some holes that install and fix on the cover plate and matches with the interior installing hole of box body.
(2) as claimed in claim 1 having a connection with the EGSM duplex filter module, characterized in that: said resonant cavity is characterized by the shape of the resonator was similar to the "Jiong" shaped and having a plurality of bent portions, EGSM resonance signal frequency distribution of spaced levers in the resonant cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101202232A CN102683776A (en) | 2012-04-23 | 2012-04-23 | EGSM duplex filtering module with connection band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101202232A CN102683776A (en) | 2012-04-23 | 2012-04-23 | EGSM duplex filtering module with connection band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102683776A true CN102683776A (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101202232A Pending CN102683776A (en) | 2012-04-23 | 2012-04-23 | EGSM duplex filtering module with connection band |
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| CN (1) | CN102683776A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201336659Y (en) * | 2008-12-30 | 2009-10-28 | 安徽科瑞达通信科技有限公司 | Communication integration multi-system base station multiplexer |
| US20110001584A1 (en) * | 2008-05-01 | 2011-01-06 | Akira Enokihara | Radio-frequency filter device using dielectric waveguide with multiple resonant modes |
| CN102354778A (en) * | 2011-08-24 | 2012-02-15 | 京信通信系统（中国）有限公司 | Elliptic function low-path filtering path and communication cavity device adopting same |
| CN202662754U (en) * | 2012-04-23 | 2013-01-09 | 安徽科瑞达通信科技有限公司 | EGSM (enhanced global system for mobile communications) duplex filter module with connection belt |
-
2012
- 2012-04-23 CN CN2012101202232A patent/CN102683776A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110001584A1 (en) * | 2008-05-01 | 2011-01-06 | Akira Enokihara | Radio-frequency filter device using dielectric waveguide with multiple resonant modes |
| CN201336659Y (en) * | 2008-12-30 | 2009-10-28 | 安徽科瑞达通信科技有限公司 | Communication integration multi-system base station multiplexer |
| CN102354778A (en) * | 2011-08-24 | 2012-02-15 | 京信通信系统（中国）有限公司 | Elliptic function low-path filtering path and communication cavity device adopting same |
| CN202662754U (en) * | 2012-04-23 | 2013-01-09 | 安徽科瑞达通信科技有限公司 | EGSM (enhanced global system for mobile communications) duplex filter module with connection belt |
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Application publication date: 20120919 |