CN206225561U - A kind of big angle of declination antenna for base station of biserial - Google Patents

A kind of big angle of declination antenna for base station of biserial Download PDF

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Publication number
CN206225561U
CN206225561U CN201621291123.6U CN201621291123U CN206225561U CN 206225561 U CN206225561 U CN 206225561U CN 201621291123 U CN201621291123 U CN 201621291123U CN 206225561 U CN206225561 U CN 206225561U
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China
Prior art keywords
reflecting plate
radiating
base station
biserial
division board
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CN201621291123.6U
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Chinese (zh)
Inventor
陈平
傅将顺
蒯振起
徐凯
朱晓维
张彦
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NANJING HAOJING COMMUNICATION TECHNOLOGY Co Ltd
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NANJING HAOJING COMMUNICATION TECHNOLOGY Co Ltd
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Priority to CN201621291123.6U priority Critical patent/CN206225561U/en
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Abstract

The utility model is related to communication technique field, more particularly to a kind of big angle of declination antenna for base station of biserial, including two single-row aerial arrays, single-row aerial array includes reflecting plate, radiating element, division board and isolating bar and feeding network, reflecting plate is symmetrical on center line, some radiating elements are set at equal intervals along the center line of reflecting plate, feeding network is arranged on the back side of reflecting plate, isolating bar is arranged between adjacent radiating element, division board is arranged on the both sides of isolating bar, division board is arranged on the inner side of reflecting plate, and division board is symmetrical arranged relative to radiating element.The utility model frequency coverage is 1710MHz 2690MHz, when lower decline angle is adjusted, with good radiation characteristic, while there is Stability Analysis of Structures, with low cost, space availability ratio advantage high.

Description

A kind of big angle of declination antenna for base station of biserial
Technical field
The utility model is related to communication technique field, more particularly to a kind of big angle of declination antenna for base station of biserial.
Background technology
Antenna plays vital effect in mobile communication, and antenna for base station is website and terminal in base station communication system Set up the critical component of communication link.The upstream request signal that forwarding terminal sends is responsible in base station, while will communication other end hair The Info Down brought sends terminal to, therefore, the performance of antenna directly affects the covering of this cell.By to antenna Different designs are carried out, changes its radiation characteristic, control the spatial distribution of electromagnetic energy, improve resource utilization.For different words The cell of business amount, there is provided different tilt angled downs.
2G, 3G, 4G and LTE network are run simultaneously at this stage, and network thickness increases.Outdoor macro station, indoor small station, micro- station etc. The three-dimensional overlay network of composition, network density increases.Multi-network cooperative and the network optimization are the keys for building high-performance LTE network.For Meet the network optimization requirement for gradually increasing, operator need to seek easy to operate, high efficiency, low cost, flexibility ratio antenna high Scheme.It is the method for realizing that the network optimization is conventional that antenna has a down dip.Can be realized by the angle of declination for changing antenna for base station main beam The covering of different radii cell simultaneously reduces the interference of minizone.Downtilt size and the coverage, base station day that need to control Relative altitude, the width of antennas orthogonal lobe of line etc. are relevant.The mode that antenna beam has a down dip mainly has two kinds:Mechanical tilt and Electricity is adjusted and had a down dip.Mechanical tilt antenna realizes downwards bevel beam by raising line mechanical tilt arm all day in website, and electricity is adjusted and had a down dip, and is By changing the phase difference between unit, so as to change far field synthesis field beam position realize having a down dip.With mobile broadband service Continuous growth, inter-cell interference and Consumer's Experience turn into key, and mechanical tilt will cause pattern distortion, increase minizone Interference, reduces edge customer speed, influences Consumer's Experience.Had a down dip for electricity tune, change the change of angle of declination rear direction figure little.Increase Plus tilt angled down, sector coverage product reduces, but does not produce interference.
With the quickening of urban construction, base station selection is more and more harsh, and each position is also just selected particularly precious on base station It is expensive.Biserial antenna substantially increases space availability ratio compared to traditional single-row antenna, is also increasingly connect by major operators Receive.
Utility model content
The utility model provides that a kind of simple structure, low cost, stable performance, space availability ratio be high, frequency coverage The big angle of declination antenna for base station of wide biserial.
In order to realize the purpose of this utility model, the technical scheme for being used is:A kind of big angle of declination antenna for base station of biserial, Including two single-row aerial arrays, single-row aerial array includes reflecting plate, radiating element, division board and isolating bar and transmission network Network, reflecting plate is symmetrical on center line, and some radiating elements are set at equal intervals along the center line of reflecting plate, and feeding network is set At the back side of reflecting plate, isolating bar is arranged between adjacent radiating element, and division board is arranged on the both sides of isolating bar, division board The inner side of reflecting plate is arranged on, division board is symmetrical arranged relative to radiating element.
Used as prioritization scheme of the present utility model, radiating element includes four radiation arms, feed tab, feeder line, feed tab modeling Backing strap piece, balun supporting construction, radiating element base and base plastic spacer, radiation arm use square engraved structure, four spokes Arm is penetrated by feed tab intersection group battle array, one end of feed tab is connected with radiation arm, and the other end of feed tab is connected with feeder line, feed Piece plastic spacer is arranged between feed tab and radiation arm, and radiation arm is arranged on radiating element base by balun supporting construction On, base plastic spacer is arranged between radiating element base and reflecting plate.
Used as prioritization scheme of the present utility model, the big angle of declination antenna for base station of biserial is by two symmetrical group of single-row aerial arrays Into.
Used as prioritization scheme of the present utility model, the two ends of reflecting plate are provided with U-shaped bending corner.
Used as prioritization scheme of the present utility model, feeding network includes phase shifter, power splitter and coaxial cable, and phase shifter is used In the tilt angled down of the control big angle of declination antenna for base station of biserial, power splitter is connected by coaxial cable with phase shifter.
Used as prioritization scheme of the present utility model, isolating bar is perpendicular to division board, the height of isolating bar and the height of division board Degree is identical.
Used as prioritization scheme of the present utility model, division board is set along the inner side of reflecting plate, length and the reflection of division board The length of plate is identical.
The utility model has positive effect:1) the utility model is made up of two row HF arrays, compared to single-row day Line, substantially increases space availability ratio;Control by feeding network to phase is capable of achieving 0 ° of adjustment of -10 ° of tilt angled downs, can To meet the covering of different telephone traffic cells;
2) radiation arm of the present utility model uses die cast metal, and radiance stabilization, uniformity is good, and damage rate is low;
3) the utility model uses U-shaped bending corner, reduces the height of reflecting plate, improves ratio before and after antenna, and valve is wide Also more restrain;
4) antenna overall structure of the present utility model is simple, stable performance, and parameter consistency is preferable, it is easy to which high-volume is raw Produce, antenna frequencies wide coverage.
5) the utility model frequency coverage is 1710MHz-2690MHz, when lower decline angle is adjusted, with good radiation Characteristic, while there is Stability Analysis of Structures, advantage with low cost.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is overlooking the structure diagram of the present utility model;
Fig. 2 is left view structural representation of the present utility model;
Fig. 3 is the overlooking the structure diagram of the single radiating element of the utility model;
Fig. 4 for the big angle of declination antenna for base station of biserial have a down dip 10 ° when elevation radiation patytern.
Wherein:1st, reflecting plate, 2, radiating element, 3, division board, 4, isolating bar, 5, U-shaped bending corner, 21, radiation arm, 22nd, feed tab, 23, feeder line, 24, feed tab plastic spacer, 25, balun supporting construction, 26, radiating element base, 27, base modeling Backing strap piece.
Specific embodiment
As Figure 1-3, the utility model discloses a kind of big angle of declination antenna for base station of biserial, including single-row antenna array Row, single-row aerial array includes reflecting plate 1, radiating element 2, division board 3 and isolating bar 4 and feeding network, and reflecting plate 1 is in Heart line is symmetrical, and some radiating elements 2 are set at equal intervals along the center line of reflecting plate 1, and feeding network is arranged on the back of the body of reflecting plate 1 Face, isolating bar 4 is arranged between adjacent radiating element 2, and division board 3 is arranged on the both sides of isolating bar 4, and division board 3 is arranged on The inner side of reflecting plate 1, division board 3 is symmetrical arranged relative to radiating element 2.Wherein, the thickness of reflecting plate 1 is 2mm.
Radiating element 2 includes four radiation arms 21, feed tab 22, feeder line 23, feed tab plastic spacer 24, balun support knot Structure 25, radiating element base 26 and base plastic spacer 27, radiation arm 21 use square engraved structure, four radiation arms 21 to pass through The intersection group battle array of feed tab 22, one end of feed tab 22 is connected with radiation arm 21, and the other end of feed tab 22 is connected with feeder line 23, feedback Electric piece plastic spacer 24 is arranged between feed tab 22 and radiation arm 21, and radiation arm 21 is arranged on spoke by balun supporting construction 25 Penetrate in unit base 26, base plastic spacer 27 is arranged between radiating element base 26 and reflecting plate 1.Wherein, balun support Structure 25 is arranged on the lower section of radiation arm 21, and interconnection, four radiation arms 21 are carried out by feed tab 22 between radiation arm 21 By the square crossing group of feed tab 22 battle array, radiation arm 21 uses die cast metal.
The big angle of declination antenna for base station of biserial is symmetrically made up of two single-row aerial arrays, and the two ends of reflecting plate 1 are provided with U-shaped Bending corner 5.Bending improvement is carried out by vertical corner, the whole height of reflecting plate 1 is reduced, radiation electric stream is changed Footpath, can effectively improve because two list array antenna arrays there is a problem of interfering caused by front and rear ratio it is poor, while carrying Antenna lens convergence wide high.
Feeding network includes phase shifter, power splitter and coaxial cable, and phase shifter is used to control the big angle of declination base station day of biserial The tilt angled down of line, power splitter is connected by coaxial cable with phase shifter.
Isolating bar 4 is perpendicular to division board 3, and the height of isolating bar 4 is highly identical with division board 3.Division board 3 is along reflecting plate 1 inner side is set, and the length of division board 3 is identical with the length of reflecting plate 1.Wherein, isolating bar 4 can effectively improve array polarization Between isolation.
Fig. 4 for the big angle of declination antenna for base station of biserial have a down dip 10 ° when elevation radiation patytern, it can be seen that in 1710MHz- In 2690MHz frequency ranges, secondary lobe suppresses to be more than 16dB on antenna, and tilt angled down is near 9.8 °.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect Step is described in detail, be should be understood that and be the foregoing is only specific embodiment of the utility model, is not limited to this Utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements done etc. all should be wrapped It is contained within protection domain of the present utility model.

Claims (7)

1. the big angle of declination antenna for base station of a kind of biserial, it is characterised in that:Including two single-row aerial arrays, described single-row antenna Array includes reflecting plate (1), radiating element (2), division board (3) and isolating bar (4) and feeding network, described reflecting plate (1) Symmetrical on center line, some radiating elements (2) are set at equal intervals along the center line of reflecting plate (1), described feeding network The back side of reflecting plate (1) is arranged on, isolating bar (4) is arranged between adjacent radiating element (2), and described division board (3) sets The both sides in isolating bar (4) are put, described division board (3) is arranged on the inner side of reflecting plate (1), and described division board (3) is relative It is symmetrical arranged in radiating element (2).
2. the big angle of declination antenna for base station of a kind of biserial according to claim 1, it is characterised in that:Described radiating element (2) including four radiation arms (21), feed tab (22), feeder line (23), feed tab plastic spacer (24), balun supporting construction (25), radiating element base (26) and base plastic spacer (27), described radiation arm (21) use square engraved structure, four Radiation arm (21) is connected by feed tab (22) intersection group battle array, one end of feed tab (22) with radiation arm (21), feed tab (22) The other end be connected with feeder line (23), described feed tab plastic spacer (24) be arranged on feed tab (22) and radiation arm (21) it Between, described radiation arm (21) by balun supporting construction (25) on radiating element base (26), described base modeling Backing strap piece (27) is arranged between radiating element base (26) and reflecting plate (1).
3. the big angle of declination antenna for base station of a kind of biserial according to claim 1 and 2, it is characterised in that:Described biserial is big Angle of declination antenna for base station is symmetrically made up of two single-row aerial arrays.
4. the big angle of declination antenna for base station of a kind of biserial according to claim 1 and 2, it is characterised in that:The two of reflecting plate (1) End is provided with U-shaped bending corner (5).
5. the big angle of declination antenna for base station of a kind of biserial according to claim 1 and 2, it is characterised in that:Described transmission network Network includes phase shifter, power splitter and coaxial cable, and described phase shifter is used to control having a down dip for the big angle of declination antenna for base station of biserial Angle, described power splitter is connected by coaxial cable with phase shifter.
6. the big angle of declination antenna for base station of a kind of biserial according to claim 1 and 2, it is characterised in that:Described isolating bar (4) perpendicular to division board (3), the height of isolating bar (4) is highly identical with division board (3).
7. the big angle of declination antenna for base station of a kind of biserial according to claim 1 and 2, it is characterised in that:Described division board (3) set along the inner side of reflecting plate (1), the length of division board (3) is identical with the length of reflecting plate (1).
CN201621291123.6U 2016-11-29 2016-11-29 A kind of big angle of declination antenna for base station of biserial Active CN206225561U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621291123.6U CN206225561U (en) 2016-11-29 2016-11-29 A kind of big angle of declination antenna for base station of biserial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621291123.6U CN206225561U (en) 2016-11-29 2016-11-29 A kind of big angle of declination antenna for base station of biserial

Publications (1)

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CN206225561U true CN206225561U (en) 2017-06-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109301435A (en) * 2017-07-25 2019-02-01 上海汇珏网络通信设备有限公司 Array antenna
CN110034377A (en) * 2018-01-12 2019-07-19 株式会社Kmw Antenna assembly
CN111668605A (en) * 2020-07-02 2020-09-15 武汉虹信通信技术有限责任公司 Electrically-controlled antenna used along high-speed rail

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109301435A (en) * 2017-07-25 2019-02-01 上海汇珏网络通信设备有限公司 Array antenna
CN110034377A (en) * 2018-01-12 2019-07-19 株式会社Kmw Antenna assembly
CN111668605A (en) * 2020-07-02 2020-09-15 武汉虹信通信技术有限责任公司 Electrically-controlled antenna used along high-speed rail
CN111668605B (en) * 2020-07-02 2021-07-09 中信科移动通信技术股份有限公司 Electrically-controlled antenna used along high-speed rail

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