CN203398310U - Mobile-communication active antenna and distributed antenna system formed thereby - Google Patents
Mobile-communication active antenna and distributed antenna system formed thereby Download PDFInfo
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- CN203398310U CN203398310U CN201320482783.2U CN201320482783U CN203398310U CN 203398310 U CN203398310 U CN 203398310U CN 201320482783 U CN201320482783 U CN 201320482783U CN 203398310 U CN203398310 U CN 203398310U
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- mobile communication
- active antenna
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Abstract
The utility model discloses a mobile-communication active antenna and a distributed antenna system formed thereby and mainly solves problems, which exist in the prior art, that because the majority of DASs adopt passive antennae, power consumption is comparatively large and application effect is degraded with increase of a coverage range so that promotion and application are inconvenient. The mobile-communication active antenna includes a first duplexer, a downlink amplification module, a downlink filtering module, a downlink power amplification module, a second duplexer, an uplink low-noise amplification module, an uplink filtering module and an uplink power amplification module, which are connected in a clockwise direction so that an annular structure is formed. Through the scheme, the mobile-communication active antenna and the distributed antenna system formed thereby achieve objectivities of comparatively low power consumption and wider coverage range so that practical values and promotion values are significantly high.
Description
Technical field
The utility model relates to a kind of active antenna, specifically, relates to the distributing antenna system of a kind of mobile communication active antenna and formation thereof.
Background technology
Distributing antenna system (DAS:Distributed Antenna System) be a kind of by being distributed in certain building, the network that a plurality of antennas of providing wireless indoor to cover form is provided.
DAS system is compared and is had a lot of advantages with other system, as: the initial stage of DAS system drops into lower, and reliability is higher; Arrival along with the 3G epoch, as a kind of broadband system, DAS solution is applicable to very much multi-operator and multiservice system is used, comprising all types of wireless traffics, if trunked mobile communication system, cellular system and speed are up to the WLAN (wireless local area network) (WLAN) of 2.5GHz etc.; Due to the building for different, each region is different for the coverage requirement of WiMAX, DAS system schema can carry out subregional covering to different systems respectively according to the coverage requirement of difference building, avoided extensive non-selectivity to cover the loss for system and power, therefore, the indoor covering system of existing most of complexity all adopts DAS solution.Yet traditional DAS system mostly adopts passive antenna, causes power loss larger, and effect declines along with the increase of coverage, thereby greatly affected it and apply.
Utility model content
The purpose of this utility model is to provide the distributing antenna system of a kind of mobile communication active antenna and formation thereof, mainly solve in prior art, exist because DAS system mostly adopts passive antenna, cause power loss larger, and effect declines along with the increase of coverage, be unfavorable for the problem of applying.
To achieve these goals, the technical solution adopted in the utility model is as follows:
Mobile communication active antenna, comprise power module and housing, also comprise the first duplexer being all arranged in housing, the descending amplification module that input is connected with first duplexer, the downstream filtering module that input is connected with descending amplification module, the descending power amplifier module that input is connected with downstream filtering module, input is connected with descending power amplifier module, and output is connected with the second duplexer of up low noise amplification module, the up filtration module that input is connected with up low noise amplification module, input is connected with up filtration module, and the up power amplifier module that output is connected with first duplexer, described descending amplification module, up power amplifier module, descending power amplifier module is all connected with power module with up low noise amplification module, the two-way aerial array that is connected with of described the second duplexer.
Specifically, described aerial array comprises and the two-way exciting unit being connected of the second duplexer and the radiating element being connected with exciting unit.
Further, described housing comprises metallic cavity and the plastic chamber joining with metallic cavity, described first duplexer, descending amplification module, downstream filtering module, descending power amplifier module, up low noise amplification module, up filtration module, up power amplifier module and the second duplexer are all installed in metallic cavity, described exciting unit and radiating element are all installed in plastic chamber, between described metallic cavity and plastic chamber, be provided with a through hole, described the second duplexer is connected by the connecting circuit being arranged in this through hole with exciting unit.
Based on above-mentioned mobile communication active antenna, the invention also discloses a kind of distributing antenna system being formed by it, comprise two above above-mentioned mobile communication active antennas, the above power splitter being connected with mobile communication active antenna, a described above power splitter Jun Yu mobile communication base station is connected.The above power splitter of above-mentioned of being connected with mobile communication active antenna refers to when mobile communication active antenna is while being a plurality of, abundant covering and stability in order to ensure signal, corresponding power splitter is also a plurality of, and each power splitter connects respectively 1 ~ 3 each mobile communication active antenna.
As preferably, between described power splitter and mobile communication base station, and all by radio frequency cable, be connected between power splitter and mobile communication active antenna.
Compared with prior art, the utlity model has following beneficial effect:
(1) in the utility model, abandoned the mode that available technology adopting passive antenna carries out signal transmission, adopt active antenna to carry out signal transmission, such mode has made up the loss that system radio frequency cable and power splitter bring, and signal can be amplified to the power grade needing, with this, the coverage of utilance, signal receiving sensitivity and the antenna of base station signal, more realistic demand have greatly been improved.
(2) the utility model networking simple, implement conveniently, be applicable to a kind of standard in GSM, CDMA, WCDMA, DCS, TD-SCDMA, TD-LTE and FDD-LTE or the combination of multiple types, the scope of application is wider, is applicable to large-scale promotion application.
(3) in the utility model, be provided with housing; and aerial array is installed in the cavity of plastic material, antenna circuit is installed in the cavity of metal material; thereby can not affect transmission and the interference of aerial signal can guarantee to use time; can antenna core structure effectively be blocked and be protected again, design very ingenious.
(4) in the utility model, only need to use a power module just can realize the power supply to all device blocks, and each device blocks is all connected by radio frequency cable, thereby installs more conveniently, be easier to implement and maintenance.
Accompanying drawing explanation
Fig. 1 is the system block diagram of mobile communication active antenna in the utility model.
Fig. 2 is the structural representation of mobile communication active antenna in the utility model.
Fig. 3 is the system block diagram of distributing antenna system in the utility model.
Fig. 4 is the system block diagram of binary channels mobile communication active antenna in the utility model-embodiment.
In above-mentioned accompanying drawing, the component names that Reference numeral is corresponding is as follows:
1-metallic cavity, 2-plastic chamber, 3-through hole, 4-cover plate.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, and execution mode of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figure 1, the utility model discloses a kind of distributing antenna system that is applicable to, can effectively reduce the power loss of system, improve the mobile communication active antenna of coverage, this active antenna comprises power module, and be connected to along clockwise direction circulus, it is the first duplexer that the former output is connected with the latter's input, descending amplification module, downstream filtering module, descending power amplifier module, the second duplexer, up low noise amplification module, up filtration module and up power amplifier module, the output of described up power amplifier module is connected with first duplexer, described descending amplification module, up power amplifier module, descending power amplifier module is all connected with power module with up low noise amplification module, by its unified power supply of electric power source pair of module, the two-way aerial array being formed with the radiating element being connected with exciting unit by exciting unit that is connected with of described the second duplexer.
In the utility model, the operation principle of mobile communication active antenna is as follows:
Downstream signal from mobile communication base station is amplified by descending amplification module after first duplexer, signal after amplification carries out filtering processing through downstream filtering module, then through descending power amplifier module, carry out power amplification, downstream signal after power amplification is launched through the second duplexer and aerial array, and settling signal covers;
From mobile terminal, as the upward signal of mobile phone etc. receives by aerial array, after the second duplexer, by up low noise amplification module, amplified, signal after amplification carries out filtering processing through up filtration module, then through up power amplifier module, carry out power amplification, the upward signal after power amplification is transferred to mobile communication base station through first duplexer and processes.
Consider the aesthetic property while using, and the stability of performance, as shown in Figure 2, a kind of housing that is applicable to this mobile communication active antenna is also disclosed in the utility model, this housing comprises the plastic chamber 2 of sealing and the metallic cavity 1 of the sealing of joining with plastic chamber 2, and plastic chamber 2 and metallic cavity 1 joint are provided with the two through hole 3 of a connection.Wherein, first duplexer, descending amplification module, downstream filtering module, descending power amplifier module, up low noise amplification module, up filtration module, up power amplifier module and the second duplexer are all installed in metallic cavity 1, exciting unit and radiating element are all installed in plastic chamber 2, the second duplexer is connected by the connecting circuit being arranged in this through hole 3 with exciting unit, as long as the signal transmission that this connecting circuit can be realized between the second duplexer and exciting unit just can, because this kind of connecting circuit is comparatively common, thereby just more do not speak more bright at this.
Consider the convenience of later stage maintenance, and the core of this active antenna is installed on the actual conditions in metallic cavity 1, in the utility model, preferably metallic cavity 1 is set to the annular seal space forming by cavity and cover plate 4 are installed, thereby in use, only need close cover plate 4 just can form a hermetically-sealed construction, when later period maintenance, only need to open cover plate 4 and just can realize the maintenance to related circuit, use very convenient.
As shown in Figure 3, a kind of distributing antenna system consisting of above-mentioned mobile communication active antenna is also disclosed in the utility model, the applicable system of this mobile communication active antenna includes but not limited to this distributing antenna system, this distributing antenna system comprises the power splitter being connected with mobile communication base station by radio frequency cable, the above-mentioned mobile communication active antenna (abbreviation active antenna) being connected with power splitter.
The operation principle of this distributing antenna system is as follows:
Mobile communication base station downstream signal is assigned to the region that needs covering by radio frequency cable and power splitter, by active antenna, amplify and launch, otherwise, mobile device, as the up letter of mobile phone etc. receives by active antenna equally and amplifies, upward signal after amplification arrives mobile communication base station by radio frequency cable and power splitter, and then it is mutual to realize signal.According to the needs of coverage, can in system, connect N active antenna and carry out signal covering, (N can be 1 tunnel, can be also multichannel, according to actual signal area coverage, require to determine, as shown in Figure 3, the N in the present embodiment is 5 tunnels), according to the difference of active antenna quantity, also a plurality of power splitters can be correspondingly set, to guarantee the stable covering of signal, as shown in Figure 3, the power splitter in the present embodiment is 3.
When needs use a plurality of active antenna, just formed multi-channel active antenna, in multi-channel active antenna, power module is still one, be in whole antenna system, all to only have a power module to power, thereby installation and maintenance are very convenient, as shown in Figure 4, in the present embodiment, provided the system diagram of double-channel active antenna, the structure of two active antennas is identical, and share a power module, this power module respectively with descending amplification module, up power amplifier module, descending power amplifier module is connected with up low noise amplification module, be two active antenna power supplies.
Correspondingly, in multi-channel active antenna, plastic chamber 2 and metallic cavity 1 joint are provided with the two through hole 3 of the connection identical with active antenna number, and each passage has separately a connecting circuit by through hole 3, duplexer to be connected with exciting unit.
According to above-described embodiment, just can realize well the utility model.
Claims (5)
1. mobile communication active antenna, comprise power module and housing, it is characterized in that, also comprise the first duplexer being all arranged in housing, the descending amplification module that input is connected with first duplexer, the downstream filtering module that input is connected with descending amplification module, the descending power amplifier module that input is connected with downstream filtering module, input is connected with descending power amplifier module, and output is connected with the second duplexer of up low noise amplification module, the up filtration module that input is connected with up low noise amplification module, input is connected with up filtration module, and the up power amplifier module that output is connected with first duplexer, described descending amplification module, up power amplifier module, descending power amplifier module is all connected with power module with up low noise amplification module, the two-way aerial array that is connected with of described the second duplexer.
2. mobile communication active antenna according to claim 1, is characterized in that, described aerial array comprises and the two-way exciting unit being connected of the second duplexer and the radiating element being connected with exciting unit.
3. mobile communication active antenna according to claim 2, it is characterized in that, described housing comprises metallic cavity (1) and the plastic chamber (2) joining with metallic cavity (1), described first duplexer, descending amplification module, downstream filtering module, descending power amplifier module, up low noise amplification module, up filtration module, up power amplifier module and the second duplexer are all installed in metallic cavity (1), described exciting unit and radiating element are all installed in plastic chamber (2), between described metallic cavity (1) and plastic chamber (2), be provided with a through hole (3), described the second duplexer is connected by the connecting circuit being arranged in this through hole with exciting unit.
4. distributing antenna system, it is characterized in that, comprise two mobile communication active antennas described in above claim 1 ~ 3 any one, the above power splitter of of being connected with mobile communication active antenna, a described above power splitter Jun Yu mobile communication base station is connected.
5. distributing antenna system according to claim 4, is characterized in that, between described power splitter and mobile communication base station, and all by radio frequency cable, is connected between power splitter and mobile communication active antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320482783.2U CN203398310U (en) | 2013-08-08 | 2013-08-08 | Mobile-communication active antenna and distributed antenna system formed thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320482783.2U CN203398310U (en) | 2013-08-08 | 2013-08-08 | Mobile-communication active antenna and distributed antenna system formed thereby |
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| CN203398310U true CN203398310U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320482783.2U Expired - Lifetime CN203398310U (en) | 2013-08-08 | 2013-08-08 | Mobile-communication active antenna and distributed antenna system formed thereby |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401080A (en) * | 2013-08-08 | 2013-11-20 | 四川省韬光通信有限公司 | Mobile communication active antennas and distributed antenna system with same |
-
2013
- 2013-08-08 CN CN201320482783.2U patent/CN203398310U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401080A (en) * | 2013-08-08 | 2013-11-20 | 四川省韬光通信有限公司 | Mobile communication active antennas and distributed antenna system with same |
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