CN202662752U - CDMA800 duplex filter module - Google Patents
CDMA800 duplex filter module Download PDFInfo
- Publication number
- CN202662752U CN202662752U CN 201220172710 CN201220172710U CN202662752U CN 202662752 U CN202662752 U CN 202662752U CN 201220172710 CN201220172710 CN 201220172710 CN 201220172710 U CN201220172710 U CN 201220172710U CN 202662752 U CN202662752 U CN 202662752U
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- cdma800
- type connector
- resonant cavity
- kfd type
- port sma
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Abstract
The utility model discloses a CDMA (Code Division Multiple Access) 800 duplex filter module, comprising a box, wherein a resonant cavity is formed inside the box; the inner wall of the resonant cavity is coated with silver; a plurality of mounting holes are formed in the four sides of the resonant cavity; a plurality of CDMA800 signal resonant frequency control rods are mounted in the resonant cavity; a transmitting-port SMA-KFD type connector is mounted at one side edge of the box; an antenna-port SMA-KFD type connector and a receiving-port SMA-KFD type connector are further mounted at the side edges of the box; the transmitting-port SMA-KFD type connector, the antenna-port SMA-KFD type connector and the receiving-port SMA-KFD type connector are all connected to the CDMA800 signal resonant frequency control rods through CDMA800 signal input/output transmission wires; and a cover plate is arranged on the upper surface of the box. The CDMA800 duplex filter module is provided with two ports in all which are connected to an internal signal transceiver directly through feeder lines and the other end of the CDMA800 duplex filter module is connected to transmitting and receiving antennas arranged at the top of an outdoor base station launching tower; besides, the CDMA800 duplex filter module mainly has the advantages of low loss, small size, beautiful design, smooth signal transmission, convenience in mounting and maintenance and the like.
Description
Technical field:
The utility model relates to the mobile communication equipment field, relates in particular to a kind of CDMA800 duplex filtration module.
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 CDMA800 duplex filtration module, adopts the CDMA800 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, easier realization 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 the professional and realization new-generation digital cluster of the easier support of low-loss high stability CDMA800 duplex filtration module PTT.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 CDMA800 duplex filtration module, is mainly used in mobile communication CDMA800 system receiving and transmitting signal duplexer filter spare.
The technical solution adopted in the utility model is:
A kind of CDMA800 duplex filtration module, comprise box body: box body inside has resonant cavity, and the resonant cavity inwall is silver-plated, is provided with some installing holes around the resonant cavity, and some CDMA800 signal resonance frequency control levers are installed in the resonant cavity; 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 CDMA800 signal resonance frequency control lever by the input of CDMA800 signal, output transmission line; Cartridge upper surface is provided with cover plate, has some through holes on the cover plate and matches with CDMA800 signal resonance frequency control lever, also is provided with some installing holes that install and fix in hole and the box body on the cover plate and matches.
Its features of shape of described resonant cavity is, resonant cavity has a transverse chambers and four vertical chambeies, end, every vertical chamber all and between the transverse chambers is interconnected, and every vertical chamber all has some bends, and CDMA800 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 CDMA800 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 CDMA800 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, and some CDMA800 signal resonance frequency control levers 3 are installed in the resonant cavity 2; 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 CDMA800 signal resonance frequency control lever 3 by the input of CDMA800 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 CDMA800 signal resonance frequency control lever 3, also being provided with some installing holes 11 that install and fix in hole 10 and the box body 1 on the cover plate matches, resonant cavity 2 its features of shape are, resonant cavity 2 has a transverse chambers and four vertical chambeies, end, every vertical chamber all and between the transverse chambers is interconnected, every vertical chamber all has some bends, and CDMA800 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 CDMA800 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 CDMA800 signal resonance frequency control lever, intra resonant cavity design model and silver coating, CDMA800 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 CDMA800 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 that 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. a CDMA800 duplex filtration module comprises box body, and 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, and some CDMA800 signal resonance frequency control levers are installed in the resonant cavity; 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 CDMA800 signal resonance frequency control lever by the input of CDMA800 signal, output transmission line; Cartridge upper surface is provided with cover plate, has some through holes on the cover plate and matches with CDMA800 signal resonance frequency control lever, also is provided with some installing holes that install and fix in hole and the box body on the cover plate and matches.
2. CDMA800 according to claim 1 duplex filtration module, it is characterized in that: its features of shape of described resonant cavity is, resonant cavity has a transverse chambers and four vertical chambeies, end, every vertical chamber all and between the transverse chambers is interconnected, every vertical chamber all has some bends, and CDMA800 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 201220172710 CN202662752U (en) | 2012-04-21 | 2012-04-21 | CDMA800 duplex filter module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220172710 CN202662752U (en) | 2012-04-21 | 2012-04-21 | CDMA800 duplex filter module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662752U true CN202662752U (en) | 2013-01-09 |
Family
ID=47457635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220172710 Expired - Fee Related CN202662752U (en) | 2012-04-21 | 2012-04-21 | CDMA800 duplex filter module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332684A (en) * | 2014-10-23 | 2015-02-04 | 国家电网公司 | GSM (global system for mobile communications) compact filter |
-
2012
- 2012-04-21 CN CN 201220172710 patent/CN202662752U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332684A (en) * | 2014-10-23 | 2015-02-04 | 国家电网公司 | GSM (global system for mobile communications) compact filter |
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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: 20150421 |
|
| EXPY | Termination of patent right or utility model |