CN202662754U - EGSM (enhanced global system for mobile communications) duplex filter module with connection belt - Google Patents
EGSM (enhanced global system for mobile communications) duplex filter module with connection belt Download PDFInfo
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- CN202662754U CN202662754U CN 201220174796 CN201220174796U CN202662754U CN 202662754 U CN202662754 U CN 202662754U CN 201220174796 CN201220174796 CN 201220174796 CN 201220174796 U CN201220174796 U CN 201220174796U CN 202662754 U CN202662754 U CN 202662754U
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Abstract
The utility model discloses an EGSM (enhanced global system for mobile communications) duplex filter module with a connection belt, comprising a box body, wherein a resonant cavity is formed in the box body, the inner wall of the resonant cavity is plated with silver, a plurality of installation holes are formed on the periphery of the resonant cavity, and a plurality of EGSM signal resonant frequency control rods are installed in the resonant cavity; a transmitting port SMA-KFD type connector is installed on the side of the box body, an antenna port SMA-KFD type connector and a receiving port SMA-KFD type connector are further installed on the side of the box 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 via an EGSM signal input transmission wire and an EGSM signal output transmission wire; and a cover plate is arranged on the upper surface of the box body. The EGSM duplex filter module with a connection belt disclosed by the utility model is provided with two ports which are directly connected to interior signal transmitting-receiving equipment via feeders, and the other end is connected to a receiving antenna and a transmitting antenna on the top of an outdoor base-station launching tower via feeders; and the GSM1800 duplex filter module with a connection belt mainly has many advantages of being less in loss, small in overall dimension, beautiful in design, smooth in signal transmission, convenient in installation and maintenance, etc.
Description
Technical field:
The utility model relates to the mobile communication equipment field, relates in particular to a kind of EGSM duplex filtration module with connecting band.
Background technology:
Existing all kinds of antennas and transceiver input port are employed not to be low-loss, selective filter, all still adopt irradiation structure and the multi-cavity resonance structure of solid type, bulky, complex structure, processing difficulties has become the major obstacle of wireless communications products microminiaturization.Its main cause be the radiation transformed space of its institute's foundation and frequency resonance space be the electrolyte constant close to 1, the free air of loss minimum.Opening up the solution electric constant of various different sizes and also controlled, and separate the lower new material replacement free air of matter loss, is to realize antenna and filter complanation, microminiaturization and intelligentized Major Technology.
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, more easily realize multi-standard base station and multimode terminal, system is easier to upgrading, be more suitable at first building at the big city of GSM hot zones, adopt low-loss high stability EGSM duplex filtration module to support that more easily PTT is professional and realize the new-generation digital cluster.Can effectively offset interference, system can be worked under the condition of full code channel.Therefore, spectrum efficiency is high, can satisfy following expansion demand.
The utility model content:
The purpose of this utility model 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 solution adopted in the utility model 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 described 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 by 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, and the installing hole that also is provided with on the cover plate in some installation fixing holes and the box body matches.
Its features of shape of described resonant cavity is, resonant cavity is similar " Jiong " font and have some kinks, and EGSM signal resonance frequency control lever is distributed in the resonant cavity mutually across a certain distance.
Compared with prior art, the beneficial effects of the utility model are:
The utility model has two ports and directly is connected to the internal signal transceiver by 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 the 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 the utility model structural representation;
Accompanying drawing 2 is covering plate structure schematic diagram of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing, by embodiment the utility model is described in further detail:
A kind of EGSM duplex filtration module, comprise box body: box body 1 inside has resonant cavity 2, and resonant cavity 2 inwalls are silver-plated, is provided with some installing holes 11 around the resonant cavity 2, some EGSM signal resonance frequency control levers 3 are installed in the resonant cavity 2, have connecting band 12 between EGSM signal resonance frequency control lever; Box body 1 side is equipped with emission port SMA-KFD type connector 4, box body 1 side also is equipped with antenna port SMA-KFD type connector 6 and receiving port SMA-KFD type connector 7, and emission port SMA-KFD type connector 4, antenna port SMA-KFD type connector 6, receiving port SMA-KFD type connector 7 all are connected to EGSM signal resonance frequency control lever 3 by the input of EGSM signal, output transmission line 5; Box body 1 upper surface is provided with cover plate 8, having some through holes 9 on the cover plate 8 matches with EGSM signal resonance frequency control lever 3, the installing hole 11 that also is provided with on the cover plate in some installation fixing holes 10 and the box body 1 matches, resonant cavity 2 its features of shape are, resonant cavity 2 is similar " Jiong " font and has some kinks, and EGSM signal resonance frequency control lever 3 is distributed in the resonant cavity 2 mutually across a certain distance.
It comprises resonant cavity as shown in the figure.Resonant cavity is mainly used to transmit signal and the every needed technical indicator of product that produces between each frequency, is a kind of microwave transmission line, and the electric energy that produces 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 dual-mode antenna device of feeder line (a namely transfer wire between link block and the antenna) link block outside, and EGSM signal resonance frequency control lever, intra resonant cavity design model and silver coating, EGSM signal input, output transmission line (being used for being connected of intra resonant cavity and outside SMA-KFD type connector), cover plate.The low-loss high stability EGSM duplex filtration module that is mainly combined by this eight large core technology component.
Above-described embodiment only is better execution mode of the present utility model, and in addition, the utility model can also have other implementations.Need to prove, under the prerequisite that does not break away from the utility model design, any apparent improvement and modification all should fall within the protection range of the present utility model.
Claims (2)
1. EGSM duplex filtration module with connecting band, comprise box body, it is characterized in that: 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 described 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 by 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, and the installing hole that also is provided with on the cover plate in some installation fixing holes and the box body matches.
2. the EGSM duplex filtration module with connecting band according to claim 1, it is characterized in that: its features of shape of described resonant cavity is, resonant cavity is similar " Jiong " font and have some kinks, EGSM signal resonance frequency control lever is distributed in the resonant cavity mutually across a certain distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220174796 CN202662754U (en) | 2012-04-23 | 2012-04-23 | EGSM (enhanced global system for mobile communications) duplex filter module with connection belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220174796 CN202662754U (en) | 2012-04-23 | 2012-04-23 | EGSM (enhanced global system for mobile communications) duplex filter module with connection belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662754U true CN202662754U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220174796 Expired - Fee Related CN202662754U (en) | 2012-04-23 | 2012-04-23 | EGSM (enhanced global system for mobile communications) duplex filter module with connection belt |
Country Status (1)
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| CN (1) | CN202662754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683776A (en) * | 2012-04-23 | 2012-09-19 | 安徽科瑞达通信科技有限公司 | EGSM duplex filtering module with connection band |
-
2012
- 2012-04-23 CN CN 201220174796 patent/CN202662754U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683776A (en) * | 2012-04-23 | 2012-09-19 | 安徽科瑞达通信科技有限公司 | EGSM duplex filtering module with connection band |
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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: 20130109 Termination date: 20150423 |
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| EXPY | Termination of patent right or utility model |