CN104639216B - A kind of electrical tilt antenna - Google Patents
A kind of electrical tilt antenna Download PDFInfo
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- CN104639216B CN104639216B CN201310549192.7A CN201310549192A CN104639216B CN 104639216 B CN104639216 B CN 104639216B CN 201310549192 A CN201310549192 A CN 201310549192A CN 104639216 B CN104639216 B CN 104639216B
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- phase
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Abstract
The present invention provides a kind of electrical tilt antennas, it is related to the communications field, solve the problems, such as that Antenna Design is incomplete in the prior art, the electrical tilt antenna includes the phase-shifting unit for issuing after adjusting received signal by preset phase, and at least one aerial array being connected with the phase-shifting unit, the aerial array is used to receive and emit the signal that the phase-shifting unit issues, further include: the signal combiner unit being respectively connected with base station and the phase-shifting unit, the Signal separator of dual system all the way for issuing the base station is at two-way single system signal, and the two-way single system signal is sent to the phase-shifting unit.The solution of the present invention can support the base station equipment of two systems shared radio frequency unit and the independent electrical tune to two systems signal.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of electrical tilt antenna.
Background technique
The technic relization scheme of existing multisystem collective antenna mainly has following four:
Prior art one: as shown in Figure 1, two base station systems of A, B pass through after being combined by external combiner
The same antennal interface is linked into dual-band antenna, and the wireless signal of two systems is emitted by identical antenna beam.
Prior art two: as shown in Fig. 2, two base station systems of A, B, are accessed by the distinct interface of the same antenna
Into dual-band antenna, for signal in inside and outside without any combining, the wireless signal of two systems passes through different antenna waves
Beam emits.
Prior art three: as shown in figure 3, two base station systems of A, B, are accessed by the distinct interface of the same antenna
Into dual-band antenna, two paths of signals synthesizes signal all the way by built-in combiner, and the wireless signal of two systems passes through same
Antenna beam emits.
Prior art four: as shown in figure 4, two base station systems of A, B, shared radio frequency unit pass through the same antenna
Interface is linked into dual-band antenna, and the wireless signal of two systems is emitted by the same antenna beam.
The shortcomings that above-mentioned four kinds of prior arts, mainly there is following two:
1. the base station equipment of A, B two systems shared radio frequency unit can not be adapted to.
With the continuous development of the communication technology and hardware manufacturing level, more and more communication systems can pass through prior-generation
The smooth upgrade mode of equipment is realized, has the advantage that the effective storage life that can not only extend equipment in this way, is protected
The cost of investment of operator, and the project amount of equipment replacement can be greatly reduced, engineered expense is saved, and can be significantly
The cooperation demand for reducing owner avoids frequently engineered caused owner from misreading and obstruct.Such as current time-division long term evolution
The F-band of system TD-LTE is realized, so that it may be realized by the smooth upgrade of existing time-division TD equipment, be built using F-band
When TD-LTE, TD-LTE and TDS-CDMA system TD-S can share completely radio frequency unit (RRU) and FA double frequency day
Line, in this way, former base station can minimize project amount without any transformation substantially.
However it can be seen that current first to the third mode not by the above-mentioned description to four kinds of existing implementations
Support the base station equipment of A, B two systems shared radio frequency unit.Only the 4th kind of mode is supported.
2. cannot achieve the independent electrical tune of A, B two systems wireless signal.
Antenna is located at the front end of wireless communication system, has vital work for the quality of entire wireless network
With.The working frequency of different wireless communication system is different, and the propagation characteristic of radio wave signal, penetration performance are widely different,
And operator is when carrying out different wireless network construction, it will usually use different networking strategies, therefore different channel radios
Letter system, the just base station system on the same site at last, coverage goal, signal strength requirement are also different, therefore, need
Different network parameters is respectively set.
The downwards bevel beam of antenna is the important parameter of antenna, by adjusting the adjustable mobile communication of downwards bevel beam of antenna
The coverage area of base station system.With the continuous promotion that Multi net voting cooperates with construction and fining networking to require, different no linear systems
Different antenna beam angle of declinations, which can be respectively set, in system becomes necessary.
Current first, in the 4th kind of mode, only signal inputs antenna all the way, and existing technology cannot achieve independent electrical
It adjusts.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electrical tilt antennas, can support two systems shared radio frequency unit
Base station equipment, and be able to achieve the independent electrical tune to two systems signal.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of electrical tilt antenna, including it is used for received letter
The phase-shifting unit issued after number being adjusted by preset phase, and at least one aerial array being connected with the phase-shifting unit, institute
State the signal that aerial array is issued for receiving and emitting the phase-shifting unit, further includes:
The signal combiner unit being respectively connected with base station and the phase-shifting unit, for issuing all the way the base station
Dual system Signal separator is sent to the phase-shifting unit at two-way single system signal, and by the two-way single system signal.
Wherein, above-mentioned electrical tilt antenna further include:
The remote control unit RCU being connected with the phase-shifting unit, for driving the phase-shifting unit to carry out phase adjusted,
And control the value of the preset phase.
Wherein, the RCU includes:
Motor, for driving the phase-shifting unit to carry out phase adjusted；
The controller being connected with the motor, for controlling the value of the preset phase.
Wherein, the aerial array includes at least one antenna array radiation unit
Wherein, the signal combiner unit includes:
Combiner device is used for the dual system Signal separator all the way into two-way dual system signal；
Two filters being connected with the combiner device, for the two-way dual system signal to be filtered into the two-way
The phase-shifting unit is sent to after single system signal.
Wherein, the phase-shifting unit include two phase shift subelements, with described two phase shift subelements be respectively connected with to
Few two combiners and the first splitter to connect one to one with the combiner, wherein the phase shift subelement includes at least
One phase shifter and the second splitter to connect one to one with the phase shifter.
Wherein, the aerial array is also used to receive the two-way single system signal of terminal sending, and the terminal is issued
Signal be sent to the phase-shifting unit；
The signal combiner unit is also used to for the two-way single system signal that the phase-shifting unit issues being merged into all the way
Dual system signal is simultaneously sent to the base station.
Wherein, the combiner device is also used to for the two-way single system signal being merged into the dual system signal all the way.
The advantageous effects of the above technical solutions of the present invention are as follows:
The electrical tilt antenna of the embodiment of the present invention, the signal of dual system all the way point for first being issued base station by signal combiner unit
It is sent to phase-shifting unit from two-way single system signal, and by two-way single system signal, then shifted unit presses preset phase tune
It is sent at least one aerial array being connected with phase-shifting unit after section, is finally launched the signal received by aerial array
It goes.It can support the base station equipment of two systems shared radio frequency unit and the independent electrical tune to two systems signal.
Detailed description of the invention
Fig. 1 is one schematic diagram of prior art；
Fig. 2 is two schematic diagram of prior art；
Fig. 3 is three schematic diagram of prior art；
Fig. 4 is four schematic diagram of prior art；
Fig. 5 is the structural schematic diagram of a base station system in the prior art；
Fig. 6 is the structural schematic diagram of electrical tilt antenna of the present invention；
Fig. 7 is the structural schematic diagram of one specific embodiment of electrical tilt antenna of the present invention；
Fig. 8 is the detailed structure view of one specific embodiment of electrical tilt antenna of the present invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
As shown in figure 5, base station system is made of Base Band Unit and radio frequency unit in the prior art, base station is connect with antenna,
Mobile communication signal is received and emitted by antenna, wherein the downwards bevel beam of antenna is the important parameter of antenna, by adjusting day
The coverage area of the adjustable base station system of the downwards bevel beam of line.According to realizing that antenna has a down dip the difference of mode, it is connect with base station
Antenna can be divided into: mechanical tilt antenna, preset electrical tilt antenna and electrical tilt antenna.
The embodiment of the present invention provides a kind of electrical tilt antenna, and the base station of two systems shared radio frequency unit can be supported to set
It is standby, and it is able to achieve the independent electrical tune to two systems signal.
As shown in fig. 6, the electrical tilt antenna of the embodiment of the present invention, including for received signal to be adjusted by preset phase after
The phase-shifting unit of sending, and at least one aerial array being connected with the phase-shifting unit, the aerial array is for receiving
And emit the signal that the phase-shifting unit issues, further includes:
The signal combiner unit being respectively connected with base station and the phase-shifting unit, for issuing all the way the base station
Dual system Signal separator is sent to the phase-shifting unit at two-way single system signal, and by the two-way single system signal.
The electrical tilt antenna of the embodiment of the present invention, the signal of dual system all the way point for first being issued base station by signal combiner unit
It is sent to phase-shifting unit from two-way single system signal, and by two-way single system signal, then shifted unit presses preset phase tune
It is sent at least one aerial array being connected with phase-shifting unit after section, is finally launched the signal received by aerial array
It goes.It can support the base station equipment of two systems shared radio frequency unit and the independent electrical tune to two systems signal.
Wherein, the electrical tilt antenna of the embodiment of the present invention can also include:
The remote control unit RCU being connected with the phase-shifting unit, for driving the phase-shifting unit to carry out phase adjusted,
And control the value of the preset phase.
At this point, the long-range control action to phase-shifting unit can be realized by RCU, to realize the tune having a down dip to antenna beam
It is whole, it is easy to operate, and carry out conveniently.
Specifically, the RCU includes:
Motor, for driving the phase-shifting unit to carry out phase adjusted；
The controller being connected with the motor, for controlling the value of the preset phase.
At this point, being driven by a motor phase-shifting unit carries out phase adjusted, then the value of preset phase, energy are controlled by controller
Realize the adjustment having a down dip to antenna beam, it is easy to operate, and realize conveniently.
Wherein, the aerial array includes at least one antenna array radiation unit.
At this point, aerial array is received by antenna array radiation unit, transmitting signal.
A kind of specific embodiment, as shown in fig. 7, the signal combiner unit being connected with base station base station is issued it is double all the way
System signal is separated into two-way single system signal, and sends two-way single system signal to phase-shifting unit, and phase-shifting unit is by two-way
Single system signal is sent to M aerial array after carrying out phase adjusted respectively, wherein each aerial array includes N number of aerial array
Radiating element further can realize the long-range control to phase-shifting unit by the RCU connecting with phase-shifting unit, specifically,
It is driven by a motor phase-shifting unit and carries out phase adjusted, then control the value of preset phase by controller, can be achieved with to antenna wave
The adjustment that beam has a down dip.To support the base station equipment of two systems shared radio frequency unit, the independence to two systems signal is realized
Electricity is adjusted.
In specific embodiments of the present invention, the signal combiner unit includes:
Combiner device is used for the dual system Signal separator all the way into two-way dual system signal；
Two filters being connected with the combiner device, for the two-way dual system signal to be filtered into the two-way
The phase-shifting unit is sent to after single system signal.
At this point, the signal of dual system all the way that can issue base station divides by the effect of combiner device and two filters
From at two-way single system signal, the independent electrical tune to two systems signal is realized.
Wherein, the phase-shifting unit include two phase shift subelements, with described two phase shift subelements be respectively connected with to
Few two combiners and the first splitter to connect one to one with the combiner, wherein the phase shift subelement includes at least
One phase shifter and the second splitter to connect one to one with the phase shifter.
At this point, two-way single system signal can carry out respectively phase adjusted by two phase shift subelements, to realize to two
The independent electrical tune of a system signal.
Specific embodiments of the present invention are illustrated below below.
As shown in figure 8, signal combiner unit is made of combiner device S1 and two filters F1, F2, phase-shifting unit packet
It includes two phase shift subelements, 5 combiner D being respectively connected with two phase shift subelements and connect one to one with combiner D
5 the first splitter S21, wherein each phase shift subelement respectively include 4 phase shifter P and with phase shifter P correspond connect
4 the second splitter S22 connect, aerial array are made of 10 antenna array radiation units.
By base station send all the way the signal comprising two systems A and B to signal combiner unit, wherein system A is the time-division
Synchronization code multi-address division system TD-SCDMA, in 2010-2025 megahertzs of frequency range, system B is time-division long evolving system TD- for work
LTE, the combiner device S1 to work in 1880-1920 megahertzs of frequency range, signal combiner unit are first double all the way by what is received
System signal is separated into two-way dual system signal, and two-way dual system signal is filtered into two-way single system signal using F1 and F2
And it is sent to phase-shifting unit, wherein F1 extraction system a-signal, F2 extraction system B signal, in phase-shifting unit, system a-signal
Pass through phase shifter P and the second splitter S22 effect in two phase shift subelements respectively with system B signal, being each separated into has
5 way signals of fixed skew, using aerial array is sent to after combiner D and the first splitter S21 effect, by antenna
Antenna array radiation unit in array is launched.Wherein, two phase shift subelements are independent from each other in phase-shifting unit, are led to
The preset phase of the phase shifter P in two phase shift subelements can be adjusted respectively by crossing RCU, thus the son of control system A or B
Signal reaches the phase difference of antenna array radiation unit, achievees the purpose that controlling antenna beam has a down dip, and realizes and believes two systems
Number independent electrical tune, support two systems shared radio frequency unit base station equipment.
Specifically, the motor in RCU can drive the shifting in phase-shifting unit as power drive unit by transmission device
Phase device P is moved, to realize the adjustment that antenna beam has a down dip.
In specific embodiments of the present invention, the aerial array is also used to receive the two-way single system signal of terminal sending,
And the signal that the terminal issues is sent to the phase-shifting unit；
The signal combiner unit is also used to for the two-way single system signal that the phase-shifting unit issues being merged into all the way
Dual system signal is simultaneously sent to the base station.
At this point, the two-way single system signal that terminal is sent can be merged into dual system signal all the way by signal combiner unit
And base station is fed back to, so that base station is smoothly received the information of terminal feedback.
Believe specifically, the combiner device is also used to for the two-way single system signal being merged into the dual system all the way
Number.
It should be noted that the electrical tilt antenna of the embodiment of the present invention believes the signal of dual system all the way that base station is sent
Number separation, and Signal separator can carry out power branch and filtering to signal, and certain loss is had to signal, and inner antenna is very
Hardly possible carries out power compensation, therefore has a certain impact to the coverage distance of mobile communication base station.
In view of the above-mentioned problems, the electrical tilt antenna of the embodiment of the present invention is suitable for needing to carry out fining construction, right in city
The exigent region of independent electrical tune, this kind of usual website spacing in region is smaller, the damage of signal of less demanding to descending power
Covering will not be influenced too much by losing.
The electrical tilt antenna of the embodiment of the present invention is adapted to the base station equipment of two systems shared radio frequency unit, for logical
Smooth upgrade mode is crossed to support the online equipment of multisystem, do not need interface to radio frequency unit and antenna and connection type into
Any transformation of row, can effectively protect the effective storage life of existing net equipment, protects the cost of investment of operator, and can greatly reduce
The project amount of equipment replacement, has saved engineered expense.
The electrical tilt antenna of the embodiment of the present invention can support the base station equipment and reality of two systems shared radio frequency unit
Now to the independent electrical tune of two systems signal.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of electrical tilt antenna, including the phase-shifting unit for being issued after adjusting received signal by preset phase, Yi Jiyu
At least one connected aerial array of the phase-shifting unit, the aerial array are issued for receiving and emitting the phase-shifting unit
Signal, which is characterized in that further include:
The signal combiner unit being respectively connected with base station and the phase-shifting unit, the systems double all the way for issuing the base station
System Signal separator is sent to the phase-shifting unit at two-way single system signal, and by the two-way single system signal；
The signal combiner unit includes:
Combiner device is used for the dual system Signal separator all the way into two-way dual system signal；
Two filters being connected with the combiner device, for the two-way dual system signal to be filtered into the two-way monosystem
The phase-shifting unit is sent to after system signal；
The phase-shifting unit includes at least two combinings that two phase shift subelements and described two phase shift subelements are respectively connected with
Device and the first splitter to connect one to one with the combiner, wherein the phase shift subelement includes at least one phase shifter
And the second splitter to connect one to one with the phase shifter.
2. electrical tilt antenna according to claim 1, which is characterized in that further include:
The remote control unit RCU being connected with the phase-shifting unit for driving the phase-shifting unit to carry out phase adjusted, and is controlled
Make the value of the preset phase.
3. electrical tilt antenna according to claim 2, which is characterized in that the RCU includes:
Motor, for driving the phase-shifting unit to carry out phase adjusted；
The controller being connected with the motor, for controlling the value of the preset phase.
4. electrical tilt antenna according to claim 1, which is characterized in that the aerial array includes at least one aerial array
Radiating element.
5. electrical tilt antenna according to claim 1, which is characterized in that the aerial array is also used to receive terminal sending
Two-way single system signal, and the signal that the terminal issues is sent to the phase-shifting unit；
The signal combiner unit is also used to the two-way single system signal that the phase-shifting unit issues being merged into double systems all the way
System signal is simultaneously sent to the base station.
6. electrical tilt antenna according to claim 5, which is characterized in that the combiner device is also used to the two-way monosystem
System signal is merged into the dual system signal all the way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549192.7A CN104639216B (en) | 2013-11-07 | 2013-11-07 | A kind of electrical tilt antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549192.7A CN104639216B (en) | 2013-11-07 | 2013-11-07 | A kind of electrical tilt antenna |
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| Publication Number | Publication Date |
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| CN104639216A CN104639216A (en) | 2015-05-20 |
| CN104639216B true CN104639216B (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310549192.7A Active CN104639216B (en) | 2013-11-07 | 2013-11-07 | A kind of electrical tilt antenna |
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| CN (1) | CN104639216B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3291371B1 (en) * | 2015-05-26 | 2021-05-26 | Huawei Technologies Co., Ltd. | Electronic tuning device, antenna and electronic tuning method |
| CN105762535B (en) * | 2016-04-15 | 2018-06-29 | 武汉虹信通信技术有限责任公司 | A kind of dual system independence angle of declination adjusts electric tuning antenna of base station |
| KR20210045726A (en) * | 2019-10-17 | 2021-04-27 | 삼성전자주식회사 | Apparatus and method for transmitting and receiving signals on mutiple bands in wireless communication system |
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| CN1801974A (en) * | 2005-11-30 | 2006-07-12 | 李学军 | Multi-carrier base station amplifier |
| CN101374285A (en) * | 2008-10-15 | 2009-02-25 | 耿直 | Common transmit-receive transmission system and method for base station |
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| CN102740509A (en) * | 2012-06-14 | 2012-10-17 | 华为技术有限公司 | Active antenna and base station |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7885619B2 (en) * | 2007-06-12 | 2011-02-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Diversity transmission using a single power amplifier |
| EP3654450A1 (en) * | 2012-04-20 | 2020-05-20 | Huawei Technologies Co., Ltd. | Antenna and base station |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1801974A (en) * | 2005-11-30 | 2006-07-12 | 李学军 | Multi-carrier base station amplifier |
| CN101651480A (en) * | 2008-08-14 | 2010-02-17 | 华为技术有限公司 | Active antenna, base station, method for refreshing amplitude and phases and signal processing method |
| CN101374285A (en) * | 2008-10-15 | 2009-02-25 | 耿直 | Common transmit-receive transmission system and method for base station |
| CN102361173A (en) * | 2011-09-19 | 2012-02-22 | 广东通宇通讯股份有限公司 | Dual-system co-antenna feeder base station antenna |
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