CN206322857U - The beam array antenna of wideband five - Google Patents
The beam array antenna of wideband five Download PDFInfo
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- CN206322857U CN206322857U CN201621038190.7U CN201621038190U CN206322857U CN 206322857 U CN206322857 U CN 206322857U CN 201621038190 U CN201621038190 U CN 201621038190U CN 206322857 U CN206322857 U CN 206322857U
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Abstract
The utility model discloses a kind of beam array antenna of wideband five, it includes a metallic reflection plate；One radiation cell array, it includes M subarray, and each subarray includes N number of radiating element arranged in the horizontal direction, and at least one subarray is offset in the horizontal direction；Multiple phase compensating circuits, phase compensation is carried out to the subarray that horizontal direction is offset；Multiple beam-forming networks, it includes 23 × 3 butler matrix circuitries, multiple 2 roads blender circuit, phase shifter circuit and power distributing network, beam-forming network, include the first input port for forming the first wave beam, form the second input port of the second wave beam, form the 3rd input port of the 3rd wave beam, form the 4th input port of the 4th wave beam, with the 5th input port for forming the 5th wave beam, so offset in the horizontal direction according to certain rule using the radiating element do not gone together, and the radiating element of skew is added certain phase compensation to suppress graing lobe in feeding network.
Description
【Technical field】
The utility model is related to a kind of beam array antenna of wideband five, espespecially a kind of wideband for improving network rate and capacity
Five beam array antennas.
【Background technology】
After forth generation mobile communication technology 4G/LTE scales are commercial, the data traffic in mobile communications network is increased sharply, user
Close quarters GSM bandwidth capacity faces immense pressure.Large-scale square, transport hub, sports center, performing art venue,
The zone users such as tourist attractions, College Dormitory are intensive, and peak time can be gathered tens of thousands of or even more than 100,000 populations, data flow
Amount and voice call are required for system to possess high capacity.In order to increase communication network capacity, the mode of tradition increase carrier wave
Lifting is limited, and another reduces antenna for base station overlay area to increase the method for base station number, faces the siting of station and thing
The problem that industry is coordinated, with high costs, capacity improves limited.
The problem of for single subdistrict finite capacity, using multibeam antenna, the overlay area of conventional single sector can be thin
It is divided into multiple sectors, radio channel capacity is multiplied.Publication No. CN 102570057A utility model patent proposes one
The method that five wave beams are produced using 6 × 6 butler matrixs is planted, as shown in Figure 1.The each row for the radiating element uniformly arranged with
Vertical power splitter is connected, then is connected with 6 × 6 butler matrix delivery outlet, each polarization one 6 × 6 Butler square of correspondence
Battle array.But the technical work bandwidth only has 23.7% (1710-2170MHz), it is impossible to while compatibility 4G LTE 2300 Hes
2600MHz frequency ranges.Existing five beam technique, if frequency range is widened to 1700-2700MHz frequency ranges, can be produced in 2700MHz frequencies
Give birth to very high horizontal graing lobe.The directional diagram of Fig. 2 simulation calculations shows that graing lobe is up to -5dB at 2700MHz frequencies, to adjacent small
Area's interference is very big.
Therefore, it is necessary to design a kind of good beam array antenna of wideband five, working band is widened to 1700-2700MHz,
The frequency range of compatible 4G, 3G standard frequency range and part 2G standards, and azimuth direction has good secondary lobe in the range of working band
With grating lobe suppression performance, to overcome above mentioned problem.
【Utility model content】
For background technology problem encountered, the purpose of this utility model is to provide one kind by setting phase compensation
The subarray that circuit is offset to horizontal direction is carrying out phase compensation, improves the beam array day of wideband five of network rate and capacity
Line.
To achieve the above object, the utility model uses following technological means：
A kind of beam array antenna of wideband five, it includes a metallic reflection plate；One radiation cell array, it includes M son
Array, each subarray includes N number of radiating element arranged in the horizontal direction, and at least one subarray is inclined in the horizontal direction
Move；Multiple phase compensating circuits, phase compensation is carried out to the subarray that horizontal direction is offset；Multiple beam-forming networks, it is wrapped
Containing 23 × 3 butler matrix circuitries, multiple 2 roads blender circuit, phase shifter circuit and power distributing network, Wave beam forming net
Network, includes the first input port for forming the first wave beam, forms the second input port of the second wave beam, forms the of the 3rd wave beam
Three input ports, form the 4th input port of the 4th wave beam, and form the 5th input port of the 5th wave beam.
Further, radiating element is dual polarized antenna unit.
Further, the number M of subarray is that the number N of radiating element in 6, each subarray is 10.
Further, multiple radiating elements of each subarray are arranged along a horizontal line, and 3 subarrays are in the horizontal direction
Skew.
Further, the level interval of each subarray radiating element is equal, and the vertical interval between each subarray is equal.
Further, the distance that subarray is offset in the horizontal direction is the half of radiating element level interval.
Further, phase compensating circuit includes 2 individual transmission circuits, and the two phase difference is φ.
Further, the input port of 3 × 3 butler matrix circuitries connects 2 road blender circuits by phase shifter circuit
Output port, the output ports of 3 × 3 butler matrix circuitries connects the input port of power distributing network, No. 2 blenders electricity
The input port on road is the first input port of beam-forming network, the second input port, the 3rd input port, the 4th input
Mouth and the 5th input port, the output port of power distributing network are the output port of beam-forming network.
Further, 3 × 3 butler matrix circuitries are made up of three blenders and at least one phase shifter.
Further, the azimuth coverage of the first wave beam is 30 to 55 degree, and the azimuth coverage of the second wave beam is 15 to 23
Degree, the azimuth of the 3rd wave beam is 0 degree, and the azimuth coverage of the 4th wave beam is -15 to -23 degree, the azimuth model of the 5th wave beam
Enclose for -30 to -55 degree.
Further, the first power divider network includes multiple 3 tunnels power divider circuit, and the second power divider network includes multiple 2
Road power divider circuit.
Further, three spokes positioned at same level position that the output port connection of 3 tunnel power divider circuits is not gone together
Unit is penetrated, the input port of 3 tunnel power divider circuits connects the output port of beam-forming network.
Further, the first input port of beam-forming network, the second input port, the 4th input port and the 5th are defeated
Inbound port connects the second power divider network by phase compensating circuit.
Further, the first input port of beam-forming network and the 5th input port, corresponding phase compensation circuit
Phase difference is equal；The second input port and the 4th input port of beam-forming network, the phase difference of corresponding phase compensation circuit
It is equal.
Compared with prior art, the utility model has the advantages that：
The above-mentioned beam array antenna of wideband five, each subarray includes N number of radiating element arranged in the horizontal direction, extremely
A few subarray is offset in the horizontal direction, multiple phase compensating circuits, is entered line phase to the subarray that horizontal direction is offset and is mended
Repay, the arrangement scheme so offset in the horizontal direction according to certain rule using the radiating element do not gone together, and in feeding network
In add certain phase compensation to the radiating element of skew, five beam antennas all have in ultratvide frequency band preferable secondary lobe and
Grating lobe suppression performance, the adjacent area interference of reduction wave beam respective cell is real under conditions of antenna site and terrace resource is not increased
The channeling of existing neighbor cell, improves network capacity.
【Brief description of the drawings】
Fig. 1 is the radiating element arrangement scheme that prior art produces five beam antennas；
The compound direction figure of five wave beams of 2700MHz frequencies when Fig. 2 widens 1700-2700MHz frequency ranges for prior art；
Fig. 3 is the radiating element arrangement of the beam antenna of wideband five of the present utility model；
Fig. 4 is the utility model radiating element and the line graph of 3 tunnel power divider circuits；
Fig. 5 is the connection figure of the utility model beam-forming network；
Fig. 6 is the power divider network of the utility model second and the connection figure of phase compensating circuit；
Fig. 7 is the compound direction figure for five wave beam 2200MHz frequencies that the utility model embodiment is emulated；
Fig. 8 is the compound direction figure for five wave beam 2700MHz frequencies that the utility model embodiment is emulated.
【Embodiment】
For ease of being better understood from the purpose of this utility model, structure, feature and effect etc., in conjunction with accompanying drawing and specifically
The utility model is described in further detail for embodiment.
In the utility model, the beam array antenna of wideband five includes a metallic reflection plate, a radiation cell array, Duo Gexiang
Bit compensation circuit, multiple beam-forming networks, the first power divider network and the second power divider network, the five of beam-forming network
Individual wave beam is mainly produced by beam-forming network, and each beam-forming network includes 23 × 3 butler matrix circuitries, multiple 2
Road blender circuit, phase shifter circuit, and power distributing network.The input port of 2 road blender circuit is Wave beam forming
The input port of network, the output port of power distributing network is the output port of beam-forming network.3 × 3 Butler
Matrix circuit is made up of three blenders and more than one phase shifter.
Below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is described in detail.
A kind of beam antenna of wide-band five that the utility model embodiment is provided, the pitching face electrical tilt of each wave beam is consolidated
It is fixed, including metallic reflection plate, radiation cell array, multiple beam-forming networks, the first power divider network, the second power splitter net
Network, and phase compensating circuit.
The adjacent lines of radiation cell array in arrangement using horizontal direction skew by the way of, as shown in Figure 3.Multiple radiation
Unit 101 is in line, and radiating element level interval is HD, and vertical interval is VD, and the distance of adjacent lines offset is HD1.
Preferably, per a line radiating element number N=10 and level interval is equal, the vertical interval phase of line number M=6 and adjacent lines
Deng；Preferably, the second row radiating element 112, fourth line radiating element 114, and the 6th row radiating element 116 are both with respect to first
The right avertence of row 111 moves HD1；The third line radiating element 113 is with fifth line radiating element 115 relative to the first row 111 without skew.It is preferred that
Ground, radiating element 101 is ± 45 dual-polarized cross dipole antennas, paster antenna and slot antenna.
Preferably, the radiating element per a line is connected with the output port of the first power divider network, first power splitter
Network is made up of multiple 3 tunnels power divider circuit, and 3 tunnel power divider circuit quantity are 4 × N.Three identical water of each row in array
The radiating element that prosposition is put is connected with same 3 tunnel power divider circuit output port, as shown in Figure 4.First row radiating element connects
Connect as follows, radiating element d11, d31 and d51+45 polarization connection output ports of 3 tunnel power divider circuit 201, radiating element d21,
D41 and d61+45 polarization connect another output port of 3 tunnel power divider circuit 202.Other row radiating elements and 3 road work(point
The connection of device circuit is similar.The connection of the polarization of radiating element+45 is shown in Fig. 4, and the connection of -45 polarization is similar.
Preferably, the input port of 3 tunnel power divider circuits is connected with the output port of beam-forming network, as shown in Figure 5.
The input port for connecting 3 tunnel power divider circuits of the 1st, 3,5 row radiating elements connects the output port of beam-forming network 301；
The input port for connecting 3 tunnel power divider circuits of the 2nd, 4,6 row radiating elements connects the output port of beam-forming network 302.
The connection figure of+45 polarization is shown in Fig. 5, and the connection of -45 polarization is similar.
The beam-forming network contains 5 input ports, and output port number is equal to the columns N=10 of array.Described 2
The input port of road blender circuit is the input port of beam-forming network, and the output port connection of 2 road blender circuits is moved
Phase device circuit.The input port connection phase shifter circuit of 3 × 3 butler matrix circuitry, 3 × 3 butler matrix circuitries
Output port connects the input port of power distributing network.The power distributing network is made up of multiple 2 tunnels power divider circuit, is used for
Array is formed per the conical distribution of a line radiating element amplitude to suppress azimuth secondary lobe.The output port of power distributing network is
The output port of beam-forming network.
Preferably, the input port of beam-forming network connects the second power divider network, such as Fig. 6 by phase compensating circuit
It is shown.Second power divider network is made up of multiple 2 tunnels power divider circuit.The phase compensating circuit includes two independent biographies
Defeated circuit, phase difference is φ therebetween.The input port 413,423 of the wave beam of beam-forming network the 3rd connects 2 road power splitters
Circuit 503；The input port 411,421 of first wave beam is connected to 2 tunnel power divider circuits 501 by phase compensating circuit 401；The
The input port 412,422 of two wave beams is connected to 2 tunnel power divider circuits 502 by phase compensating circuit 402；4th wave beam it is defeated
Inbound port 414,424 is connected to 2 tunnel power divider circuits 504 by phase compensating circuit 403；The input port 415 of 5th wave beam,
425 are connected to 2 tunnel power divider circuits 505 by phase compensating circuit 404.The connection of -45 polarization is similar.
Preferably, the horizontal-shift distance HD1 per a line radiating element is the half of radiating element horizontal range, i.e. HD1
=HD/2, first and the 5th the phase difference of the corresponding phase compensating circuit of wave beam be 60 degree, second and the 4th corresponding phase of wave beam
The phase difference of bit compensation circuit is 30 degree.
Compared with existing five beam technique, the utility model to array element by being staggered and covering Wave beam forming more
Network realizes technical advantage.The array layout arranged using 6 rows 10, the azimuthal plane five of analogue simulation is shown in Fig. 7 and 8
Beam synthesis directional diagram, display frequency is respectively 2200MHz and 2700MHz.Radiating element uses cross dipole in simulation model
Antenna, vertical dip angle is 6 degree.Simulation result shows that secondary lobe and grating lobe suppression are better than 18dB, and wave beam cross level is 9.5dB,
10dB beam angle scope 80-140 degree.
Five beam antenna electrical tilt angles of embodiment are fixed, suitable user very intensive scene, such as large-scale body
Educate venue, performing art centre and square.By the way that the application scenarios such as venue are carried out with fine small Division, how secondary five wave beams day are used
Line, it is possible to achieve the lifting at double of message capacity.Relative to the conventional basestation antennas that traditional beam angle is 65 degree, not only lead to
Crossing has relatively low azimuth secondary lobe in the range of cell splitting increase capacity, and ultra-wideband (45%), the adjacent area of cell is disturbed
Small, network rate is high.5 traditional sectors, which are divided, needs 5 narrow beam antennas, and each antenna is very huge, installs simultaneously
Extremely difficult on mast, the present embodiment realizes that 5 sectors only need common antenna, in that context it may be convenient to which configuration is on mast.
It is emphasized that in above example, being located in aerial array between the two neighboring radiating element of horizontal direction
Spacing be fixed, i.e., radiating element is equidistantly arranged.However, in practical engineering application, oscillator unit can also
Do not arrange equidistantly.Similarly, two oscillators in vertical direction can not also be arranged equidistantly.In embodiment
In, the 2nd, 4,6 rows moved relative to the 1st, 3,5 row right avertence, in actual applications or left avertence move.This oscillator arrangement
The situation staggeredly changed, can also realize has the multi-beam directional diagram of low sidelobe in the range of ultra-wideband, due to not departing from this reality
With new design, also within protection domain of the present utility model.
The above-mentioned beam array antenna of wideband five, each subarray includes N number of radiating element arranged in the horizontal direction, many
Individual subarray is offset in the horizontal direction, multiple phase compensating circuits, and phase compensation is carried out to the subarray that horizontal direction is offset, this
The arrangement scheme that sample is offset according to certain rule in the horizontal direction using the radiating element do not gone together, and to inclined in feeding network
The radiating element of shifting adds certain phase compensation, and all there is five beam antennas preferable secondary lobe and graing lobe to press down in ultratvide frequency band
Performance processed, the adjacent area interference of reduction wave beam respective cell, is realized adjacent under conditions of antenna site and terrace resource is not increased
The channeling of cell, improves network capacity.
Detailed description above is only the explanation of the preferred embodiment of the utility model, and non-therefore limitation is of the present utility model specially
Sharp scope, so, all equivalence techniques changes with carried out by this creation specification and diagramatic content are both contained in the utility model
The scope of the claims in.
Claims (14)
1. a kind of beam array antenna of wideband five, it is characterised in that including：
One metallic reflection plate；
One radiation cell array, it includes M subarray, and each subarray includes N number of radiation list arranged in the horizontal direction
Member, at least one subarray is offset in the horizontal direction；
Multiple phase compensating circuits, phase compensation is carried out to the subarray that horizontal direction is offset；
Multiple beam-forming networks, it includes 23 × 3 butler matrix circuitries, multiple 2 roads blender circuit, phase shifter circuits
And power distributing network, beam-forming network, comprising the first input port for forming the first wave beam, form the second of the second wave beam
Input port, forms the 3rd input port of the 3rd wave beam, forms the 4th input port of the 4th wave beam, and form the 5th wave beam
The 5th input port.
2. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：Radiating element is dual polarized antenna list
Member.
3. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：The number M of subarray is 6, each
The number N of radiating element is 10 in individual subarray.
4. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：Multiple radiation lists of each subarray
Member is arranged along a horizontal line, and 3 subarrays are offset in the horizontal direction.
5. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：Between the level of each subarray radiating element
Away from equal, the vertical interval between each subarray is equal.
6. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：3 subarrays are offset in the horizontal direction
Distance be radiating element level interval half.
7. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：Phase compensating circuit includes 2 independences
Transmission line, the two phase difference is φ.
8. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：The input of 3 × 3 butler matrix circuitries
Port connects the output port of 2 road blender circuits by phase shifter circuit, and the output port of 3 × 3 butler matrix circuitries connects
Connect the input port of power distributing network, the input ports of 2 road blender circuits for beam-forming network first input port,
Second input port, the 3rd input port, the 4th input port and the 5th input port, the output port of power distributing network is
The output port of beam-forming network.
9. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：3 × 3 butler matrix circuitries are by three
Blender and at least one phase shifter are constituted.
10. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：The azimuth coverage of first wave beam is
30 to 55 degree, the azimuth coverage of the second wave beam is 15 to 23 degree, and the azimuth of the 3rd wave beam is 0 degree, the orientation of the 4th wave beam
Angular region is -15 to -23 degree, and the azimuth coverage of the 5th wave beam is -30 to -55 degree.
11. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：First power divider network includes multiple 3
Road power divider circuit, the second power divider network includes multiple 2 tunnels power divider circuit.
12. the beam array antenna of wideband five as claimed in claim 11, it is characterised in that：The output end of 3 tunnel power divider circuits
Three radiating elements positioned at same level position that mouth connection is not gone together, the input port connection wave beam of 3 tunnel power divider circuits
Form the output port of network.
13. the beam array antenna of wideband five as claimed in claim 1, it is characterised in that：First input of beam-forming network
Port, the second input port, the 4th input port and the 5th input port connect the second power splitter net by phase compensating circuit
Network.
14. the beam array antenna of wideband five as claimed in claim 13, it is characterised in that：First input of beam-forming network
Port and the 5th input port, the phase difference of corresponding phase compensation circuit are equal；Second input port of beam-forming network and
4th input port, the phase difference of corresponding phase compensation circuit is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038190.7U CN206322857U (en) | 2016-09-05 | 2016-09-05 | The beam array antenna of wideband five |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038190.7U CN206322857U (en) | 2016-09-05 | 2016-09-05 | The beam array antenna of wideband five |
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| Publication Number | Publication Date |
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| CN206322857U true CN206322857U (en) | 2017-07-11 |
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ID=59263394
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621038190.7U Active CN206322857U (en) | 2016-09-05 | 2016-09-05 | The beam array antenna of wideband five |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184008A1 (en) * | 2018-03-29 | 2019-10-03 | 广东博纬通信科技有限公司 | Broadband nine-beam array antenna |
| CN116683202A (en) * | 2023-07-21 | 2023-09-01 | 广东博纬通信科技有限公司 | Multi-beam array antenna |
-
2016
- 2016-09-05 CN CN201621038190.7U patent/CN206322857U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184008A1 (en) * | 2018-03-29 | 2019-10-03 | 广东博纬通信科技有限公司 | Broadband nine-beam array antenna |
| CN116683202A (en) * | 2023-07-21 | 2023-09-01 | 广东博纬通信科技有限公司 | Multi-beam array antenna |
| CN116683202B (en) * | 2023-07-21 | 2024-05-14 | 广东博纬通信科技有限公司 | Multi-beam array antenna |
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