CN103682682B - A kind of multibeam antenna system - Google Patents
A kind of multibeam antenna system Download PDFInfo
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- CN103682682B CN103682682B CN201310616464.0A CN201310616464A CN103682682B CN 103682682 B CN103682682 B CN 103682682B CN 201310616464 A CN201310616464 A CN 201310616464A CN 103682682 B CN103682682 B CN 103682682B
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Abstract
The invention discloses a kind of multibeam antenna system, belong to wireless communication technology field.Described system includes: butler matrix, phase compensating circuit and at least the first numerical value multibeam antenna unit, described butler matrix includes the first numerical value outfan；Described phase compensating circuit includes described first numerical value input and described first numerical value outfan；Each outfan of described butler matrix is connected with each input of described phase compensating circuit respectively；Each outfan of described phase compensating circuit connects a multibeam antenna unit.Multibeam antenna system in the present invention adds phase compensating circuit, it is possible to realize butler matrix and form the overall deflection of multi-beam, thus form wave beam directed straight ahead.
Description
Technical field
The present invention relates to wireless communication technology field, particularly to a kind of multibeam antenna system.
Background technology
Along with developing rapidly of wireless communication technology, radio communication has been widely used in production and the life of people
In the middle of living.Such as, wireless communication technology is applied in the middle of multibeam antenna, use multibeam antenna to realize
The parallel transmission of wireless communication signals.
Prior art provides a kind of multibeam antenna system, butler matrix, power secondary can be included
Distributor circuit and 4+M multibeam antenna unit, M takes more than or equal to 1 and whole less than or equal to 4
Number.Wherein, butler matrix includes 4 inputs and 4 outfans；Power secondary distribution circuit includes 4
Individual input and 4+M outfan.Wherein, each outfan of butler matrix divides with power secondary respectively
Each input on distribution road is connected, and each outfan of power secondary distribution circuit connects a multi-beam sky
Line unit.
Wherein, input radio frequency signal at least one input in the 4 of butler matrix inputs,
The radiofrequency signal of input is exported to power secondary distribution circuit by butler matrix.Power secondary distribution circuit will
The radiofrequency signal of butler matrix output carries out power secondary distribution and exports to multibeam antenna unit, 4+M
The radiofrequency signal of reception is formed at least one multi-beam by individual multibeam antenna unit.
During realizing the present invention, inventor finds that prior art at least there is problems in that
Multibeam antenna system of the prior art can only use the butler matrix of 4*4 to form multi-beam, and
Other kinds of butler matrix can not be used to form multi-beam.Further, due to power secondary distribution circuit
The radiofrequency signal of 4+M outfan output has phase contrast, therefore, and 4+M multibeam antenna unit formation
Without wave beam directed straight ahead at least one multi-beam.
Summary of the invention
In order to solve problem of the prior art, embodiments provide a kind of multibeam antenna system.Institute
State technical scheme as follows:
First aspect, the invention provides a kind of multibeam antenna system, and described system includes:
Butler matrix, phase compensating circuit and at least the first numerical value multibeam antenna unit, described bar
Teller matrix includes described first numerical value outfan；Described phase compensating circuit includes described first numerical value
Input and described first numerical value outfan；
Each outfan of described butler matrix respectively with each input phase of described phase compensating circuit
Even；
Each outfan of described phase compensating circuit connects a multibeam antenna unit；
Described system includes that second value multibeam antenna unit and described system also include: power distribution electricity
Road, described second value is more than described first numerical value, and described second value is less than the 2 of described first numerical value
Times；
Described power distributing circuit includes described first numerical value input and described second value outfan；
Each outfan of described phase compensating circuit respectively with each input phase of described power distributing circuit
Even；
Each outfan of described power distributing circuit connects a multibeam antenna unit；
Described second value multibeam antenna unit includes described first numerical value internal layer antenna element and the 3rd
Numerical value outer layer antenna element；Described third value is described second value and the difference of described first numerical value；
Each outfan in described third value the outfan of described power distributing circuit connects an outer layer
Antenna element；Each outfan in described first numerical value the outfan of described power distributing circuit connects one
Individual internal layer antenna element.
In conjunction with first aspect, in the first possible implementation of first aspect, described power distribution electricity
Road includes described third value power splitter；Described power splitter includes input, the first outfan and second
Outfan；
The input of the arbitrary power splitter in described third value power splitter and the one of described phase compensating circuit
Individual outfan is connected；Defeated with by an antermarginal internal layer antenna element of first outfan of described power splitter
Entering end to be connected, the defeated of a paracentral outer layer antenna element is leaned in the second outfan of described power splitter and opposite end
Enter end to be connected；
Each outfan in 4th numerical value outfan of described phase compensating circuit respectively with an internal layer sky
The input of line unit is connected, and described 4th numerical value is described first numerical value and the difference of described third value.
In conjunction with first aspect or first aspect the first may, the realization that the second in first aspect is possible
In mode, described first numerical value takes 2n, described n takes the integer more than or equal to 2.
In conjunction with first aspect, in the third possible implementation of first aspect, described multibeam antenna
Unit is array antenna radiating element.
In conjunction with first aspect, in the 4th kind of possible implementation of first aspect, described butler matrix
Including described first numerical value input, to the 5th numerical value input input radio frequency of described butler matrix
Signal；Described 5th numerical value takes more than or equal to 1 and is less than or equal to the integer of described first numerical value.
In embodiments of the present invention, owing to adding phase compensating circuit in multibeam antenna system, to Bart
The phase place of the radiofrequency signal strangling Output matrix compensates, it is possible to realizes butler matrix and forms the whole of multi-beam
Body deflects, thus forms wave beam directed straight ahead.Further, the power distributing circuit of multibeam antenna system
The power of internal layer antenna element is distributed to outer layer antenna element, thus inhibits the amplitude of secondary lobe.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the apparatus structure schematic diagram of the multibeam antenna system that the embodiment of the present invention 1 provides；
Fig. 2 is another apparatus structure schematic diagram of the multibeam antenna system that the embodiment of the present invention 2 provides；
Fig. 3 is the power distributing circuit connection figure with antenna element of the embodiment of the present invention 2 offer；
Fig. 4 is another apparatus structure schematic diagram of the multibeam antenna system that the embodiment of the present invention 2 provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Embodiment is described in further detail.
Embodiment 1
The invention provides a kind of multibeam antenna system.Seeing Fig. 1, this system includes: butler matrix
101, phase compensating circuit 102 and at least the first numerical value multibeam antenna unit 103.
Wherein, butler matrix 101 includes the first numerical value outfan；Phase compensating circuit 102 includes
One numerical value input and the first numerical value outfan；One multibeam antenna unit 103 includes an input
End and an outfan.
Wherein, each outfan of butler matrix 101 respectively with each input of phase compensating circuit 102
End is connected；Each outfan of phase compensating circuit 102 connects a multibeam antenna unit 103, multi-beam
The outfan of antenna element 103 forms multi-beam.
Wherein, in embodiments of the present invention, be to illustrate as a example by 8 by the first numerical value, then butler matrix
101 include 8 outfans, and phase compensating circuit 102 includes 8 inputs and 8 outfans, multi-beam
Antenna system include 8 multibeam antenna unit 103, each multibeam antenna unit 103 include one defeated
Enter end and an outfan.Each outfan of butler matrix 101 respectively with phase compensating circuit 102
Each input is connected；Each outfan of phase compensating circuit 102 connects a multibeam antenna unit 103；
Namely: the first outfan of butler matrix 101 is connected with the first input end of phase compensating circuit 102,
First outfan of phase compensating circuit 102 connects the first multibeam antenna unit 103；Butler matrix 101
The second outfan be connected with the second input of phase compensating circuit 102, the of phase compensating circuit 102
Two outfans connect the second multibeam antenna unit 103；... the 8th outfan of butler matrix 101 and phase
8th input of bit compensation circuit 102 is connected, and the 8th outfan of phase compensating circuit 102 connects the 8th
Multibeam antenna unit 103.The multi-beam that the outfan of multibeam antenna unit 103 is formed.
Wherein it is desired to explanation, in the multi-beam of the outfan formation of multibeam antenna unit 103,
There is wave beam directed straight ahead, and the normalization main lobe amplitude of the wave beam of dead ahead is 0dB, the ripple of dead ahead
The normalization secondary lobe amplitude of bundle is-15dB, and secondary lobe suppression is 15dB.
In embodiments of the present invention, phase compensating circuit 102 is included due to multibeam antenna system, it is possible to right
The phase place of the radiofrequency signal of butler matrix 101 output compensates, it is achieved butler matrix 101 is formed many
The overall deflection of wave beam, thus form wave beam directed straight ahead.
Embodiment 2
The invention provides a kind of multibeam antenna system.Seeing Fig. 2, this system includes: butler matrix
101, phase compensating circuit 102 and second value multibeam antenna unit 103, this system also includes:
Power distributing circuit 104, second value is more than the first numerical value, and second value is less than 2 times of the first numerical value；
Power distributing circuit 104 includes the first numerical value input and second value outfan.
Wherein, each outfan of butler matrix 101 respectively with each input of phase compensating circuit 102
End is connected；Each outfan of phase compensating circuit 102 respectively with each input of power distributing circuit 104
End is connected；Each outfan of power distributing circuit 104 connects a multibeam antenna unit 103.
Wherein, butler matrix 101 includes two input mixers, two output blenders, two phase shifts
Device and a cross couplings；The outfan of input mixer respectively with phase shifter and the input of cross couplings
End is connected, and the input outfan with phase shifter and cross couplings respectively of output blender is connected.
Wherein, butler matrix 101 includes the first numerical value input and the first numerical value outfan.First
Numerical value takes 2n, n takes the integer more than or equal to 2, can carry out n as required in embodiments of the present invention
Arranging and change, the concrete value of n is not specifically limited by the embodiment of the present invention.Such as, n takes 3, then and
One numerical value is 8.When the first numerical value is 8, second value can be any integer between 8-16, such as
Two numerical value are 10.
Wherein, a radiofrequency signal can be divided into the first numerical value radiofrequency signal by butler matrix 101, as
Input radio frequency letter in any one input in the first numerical value input that butler matrix 101 includes
Number, butler matrix 101 each outfan one radiofrequency signal of output.
Wherein, phase compensating circuit 102 is used for changing the phase place of the radiofrequency signal of butler matrix 101 output,
Realize butler matrix 101 and form the overall deflection of multi-beam, thus form wave beam directed straight ahead.Phase
The deflection phase place of bit compensation circuit 102 is the opposite value of the radiofrequency signal phase place of butler matrix 101 output.
Such as, the phase place of the radiofrequency signal of butler matrix 101 output is 0 ,-90 ,-180 and-270, then phase place
The deflection phase place compensating circuit 102 is 0,90,180 and 270, then after passing through phase compensating circuit 102,
The phase place of radiofrequency signal is 0, forms wave beam directed straight ahead.
Wherein it is desired to explanation, the deflection phase place of phase compensating circuit 102 can set as required
Put and change, in embodiments of the present invention, to the concrete value of the deflection phase place of phase compensating circuit 102 not
It is specifically limited.
Wherein, in embodiments of the present invention, power distributing circuit 104 is power secondary distribution circuit, power
The power of one radiofrequency signal can be distributed to two multibeam antenna unit 103 by secondary distribution circuit, because of
This, the number of multibeam antenna unit 103 input is more than the first numerical value, and multibeam antenna unit 103
The number of input is less than 2 times of the first numerical value.
Wherein it is desired to explanation, butler matrix 101 includes the first numerical value input, in multi-beam
In antenna system, to the 5th numerical value input input radio frequency signal of butler matrix 101；5th numerical value
Take more than or equal to 1 and be less than or equal to the integer of the first numerical value；Namely in multibeam antenna system, can
Penetrate with the 5th numerical value input input arbitrary in the first numerical value input of including to butler matrix 101
Frequently signal, forms multi-beam.
Such as, butler matrix includes 8 inputs and 8 outfans, and multibeam antenna system includes
10 multibeam antenna unit；Then can be to 1 input in 8 inputs that butler matrix includes
Input radio frequency signal, then the outfan of 10 multibeam antenna unit can form 1 wave beam；Can also be to
2 input input radio frequency signals, then 10 multi-beam skies in 8 inputs that butler matrix includes
The outfan of line unit can form 2 multi-beams；8 inputs that can also include to butler matrix
In 8 input input radio frequency signals, then the outfan of 10 multibeam antenna unit can form 8
Multi-beam.
Wherein, multibeam antenna unit 103 is array antenna radiating element.Further, the many ripples of second value
Beam antenna unit 103 includes the first numerical value internal layer antenna element and third value outer layer antenna element；The
Three numerical value are second value and the difference of the first numerical value.
Wherein, outside each outfan in third value the outfan of power distributing circuit 104 connects one
Layer antenna element；Each outfan in first numerical value outfan of power distributing circuit 104 connects one
Internal layer antenna element.
Wherein, power distributing circuit 104 is for distributing to outer layer sky by the power of a part of internal layer antenna element
Line unit, a part of internal layer antenna element does not carry out power distribution.When carrying out power distribution, internal layer antenna
The power by antermarginal internal layer antenna element in unit distribute to opposite end by paracentral outer layer antenna list
Unit.As shown in Figure 3.
Wherein, what outer layer antenna element was symmetrical is distributed in internal layer antenna element both sides；Or, outer layer antenna list
Unit's mal-distribution is in internal layer antenna element both sides；Or, outer layer antenna element is distributed in internal layer antenna element
Left side；Or, outer layer antenna element is distributed in the right side of internal layer antenna element.In the embodiment of the present invention,
The distributing position of outer layer antenna element is not specifically limited.
Wherein, power distributing circuit 104 includes third value power splitter；Power splitter include input,
First outfan and the second outfan.
Wherein, the input of the arbitrary power splitter in third value power splitter and phase compensating circuit 102
One outfan is connected；First outfan of power splitter and the input phase by antermarginal internal layer antenna element
Even, the second outfan of power splitter is connected by the input of a paracentral outer layer antenna element with opposite end；
Respectively with one internal layer antenna list of each outfan in 4th numerical value outfan of phase compensating circuit 102
The input of unit is connected, as shown in Figure 4.
Wherein it is desired to explanation, the 4th numerical value is the difference of the first numerical value and third value；Power distribution electricity
Road 104 is power secondary distribution circuit.
Wherein, power distributing circuit 104 includes power splitter, and the merit proportion by subtraction example of power splitter can be according to system
Needs are configured and change so that the amplitude of multibeam antenna unit 103 forms weighting by certain rule,
In embodiments of the present invention the value of the merit proportion by subtraction example of power splitter is not specifically limited, such as, merit proportion by subtraction example
For 1:1 etc..
Wherein, in embodiments of the present invention, by the first numerical value be 8, second value be to illustrate as a example by 10,
Then butler matrix 101 includes 8 outfans, and phase compensating circuit 102 includes 8 inputs and 8
Outfan, power distributing circuit 104 includes 8 inputs and 10 outfans, in multibeam antenna system
Including 10 multibeam antenna unit 103, each outfan of butler matrix 101 respectively with phase compensation
Each input of circuit 102 is connected；Each outfan of phase compensating circuit 102 distributes with power respectively
Each input of circuit 104 is connected；Each outfan of power distributing circuit 104 connects a multi-beam
Antenna element 103；The multi-beam that multibeam antenna unit 103 is formed.
Wherein, in embodiments of the present invention, in the multi-beam that multibeam antenna unit 103 is formed, exist
Wave beam directed straight ahead, and the normalization main lobe amplitude of the wave beam of dead ahead is 0dB, the wave beam of dead ahead
Normalization secondary lobe amplitude is-18dB, and secondary lobe suppression is 18dB, in the multi-beam formed in embodiment 1, secondary
Lobe suppression is 15dB, and compared to the multi-beam shown in embodiment 1, secondary lobe suppression promotes 3dB.
In embodiments of the present invention, phase compensating circuit 102 is included due to multibeam antenna system, it is possible to right
The phase place of the radiofrequency signal of butler matrix 101 output compensates, it is achieved butler matrix 101 is formed many
The overall deflection of wave beam, thus form wave beam directed straight ahead.Further, the power of multibeam antenna system
The power of internal layer antenna element is distributed to outer layer antenna element by distributor circuit, thus inhibits the amplitude of secondary lobe.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (5)
1. a multibeam antenna system, it is characterised in that described system includes:
Butler matrix, phase compensating circuit and at least the first numerical value multibeam antenna unit, described bar
Teller matrix includes described first numerical value outfan；Described phase compensating circuit includes described first numerical value
Input and described first numerical value outfan；
Each outfan of described butler matrix respectively with each input phase of described phase compensating circuit
Even；
Each outfan of described phase compensating circuit connects a multibeam antenna unit；
Described system includes that second value multibeam antenna unit and described system also include: power distribution electricity
Road, described second value is more than described first numerical value, and described second value is less than the 2 of described first numerical value
Times；
Described power distributing circuit includes described first numerical value input and described second value outfan；
Each outfan of described phase compensating circuit respectively with each input phase of described power distributing circuit
Even；
Each outfan of described power distributing circuit connects a multibeam antenna unit；
Described second value multibeam antenna unit includes described first numerical value internal layer antenna element and the 3rd
Numerical value outer layer antenna element；Described third value is described second value and the difference of described first numerical value；
Each outfan in described third value the outfan of described power distributing circuit connects an outer layer
Antenna element；Each outfan in described first numerical value the outfan of described power distributing circuit connects one
Individual internal layer antenna element.
2. the system as claimed in claim 1, it is characterised in that
Described power distributing circuit includes described third value power splitter；Described power splitter include input,
First outfan and the second outfan；
The input of the arbitrary power splitter in described third value power splitter and the one of described phase compensating circuit
Individual outfan is connected；Defeated with by an antermarginal internal layer antenna element of first outfan of described power splitter
Entering end to be connected, the defeated of a paracentral outer layer antenna element is leaned in the second outfan of described power splitter and opposite end
Enter end to be connected；
Each outfan in 4th numerical value outfan of described phase compensating circuit respectively with an internal layer sky
The input of line unit is connected, and described 4th numerical value is described first numerical value and the difference of described third value.
3. the system as described in claim 1 or 2 profit requires, it is characterised in that
Described first numerical value takes 2n, described n takes the integer more than or equal to 2.
4. the system as claimed in claim 1, it is characterised in that
Described multibeam antenna unit is array antenna radiating element.
5. the system as claimed in claim 1, it is characterised in that
Described butler matrix includes described first numerical value input, to the 5th number of described butler matrix
Value input input radio frequency signal；Described 5th numerical value takes more than or equal to 1 and less than or equal to described the
The integer of one numerical value.
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| CN201310616464.0A CN103682682B (en) | 2013-11-27 | 2013-11-27 | A kind of multibeam antenna system |
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| CN201310616464.0A CN103682682B (en) | 2013-11-27 | 2013-11-27 | A kind of multibeam antenna system |
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| CN103682682B true CN103682682B (en) | 2016-08-17 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098383B (en) * | 2014-05-14 | 2019-01-25 | 华为技术有限公司 | Multibeam antenna system and its phase regulation method and dual polarized antenna system |
| CN106252901B (en) * | 2016-09-05 | 2023-06-20 | 广东博纬通信科技有限公司 | Broadband three-beam array antenna |
| CN108666769A (en) * | 2018-03-29 | 2018-10-16 | 广东博纬通信科技有限公司 | A kind of nine beam array antenna of wideband |
| CN111525285B (en) * | 2020-05-20 | 2021-04-02 | 西安黄河机电有限公司 | Thin-array antenna and design method thereof |
| CN113036462B (en) * | 2021-02-26 | 2022-11-15 | 西安天安电子科技有限公司 | C-band broadband digital multi-beam array antenna system |
| CN113558749A (en) * | 2021-07-12 | 2021-10-29 | 杭州电子科技大学 | Electrically controllable radio frequency ablation device with variable radiation direction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544757A (en) * | 2011-11-10 | 2012-07-04 | 广东博纬通信科技有限公司 | Single-polarization eight-beam antenna for mobile communication base station |
| CN102683897A (en) * | 2012-04-20 | 2012-09-19 | 华为技术有限公司 | Antenna, base station and beam processing method |
| CN102714805A (en) * | 2012-03-05 | 2012-10-03 | 华为技术有限公司 | Antenna system |
-
2013
- 2013-11-27 CN CN201310616464.0A patent/CN103682682B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544757A (en) * | 2011-11-10 | 2012-07-04 | 广东博纬通信科技有限公司 | Single-polarization eight-beam antenna for mobile communication base station |
| CN102714805A (en) * | 2012-03-05 | 2012-10-03 | 华为技术有限公司 | Antenna system |
| CN102683897A (en) * | 2012-04-20 | 2012-09-19 | 华为技术有限公司 | Antenna, base station and beam processing method |
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