CN207938797U - Mimo antenna array, mimo antenna and base station - Google Patents
Mimo antenna array, mimo antenna and base station Download PDFInfo
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- CN207938797U CN207938797U CN201721402063.5U CN201721402063U CN207938797U CN 207938797 U CN207938797 U CN 207938797U CN 201721402063 U CN201721402063 U CN 201721402063U CN 207938797 U CN207938797 U CN 207938797U
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Abstract
The utility model provides a kind of mimo antenna array, including：The first antenna array formed by multiple first array elements and the second aerial array formed by multiple second array elements；The working frequency range of first antenna array is at least partly identical as the working frequency range of the second aerial array；Each first array element of first antenna array and each second array element of the second aerial array are alternately distributed and non-interference successively along datum axis direction；Horizontal spacing between first array element and datum axis and between the second array element and datum axis is held within the scope of 0~0.3 λ.The mimo antenna array can not only reduce gap between first antenna array and the right boundary width of the second aerial array simultaneously, improve antenna pattern symmetry, so that the wide better astringency of the wave of half-power beam width, wave width is narrowed, improves front and back ratio and axial cross polarization；Front face area can also be reduced, save terrace resource.The utility model additionally provides a kind of mimo antenna including above-mentioned mimo antenna array and base station.
Description
Technical field
The utility model is related to field of communication technology, more specifically to a kind of mimo antenna array, mimo antenna and
Base station.
Background technology
MIMO (Multiple-Input Multiple-Output) technology is a kind of multi-antenna technology, that is, is being wirelessly communicated
The receiving terminal and transmitting terminal of system are respectively equipped with mutiple antennas, and signal is made to pass through the mutiple antennas transmission of transmitting terminal and receiving terminal
And reception, so as to improve communication quality.The technology can make full use of space resources, and multiple-input multiple-output is realized by mutiple antennas,
In the case of not increasing frequency spectrum resource and antenna transmission power, increase power system capacity that can be at double is considered as movement of new generation
The key technology of communication.
In engineering application, with reference to shown in attached drawing 7, the two of different network systems will be subordinated in existing mimo antenna array
Array antenna array has become the common recognition of this field using side-by-side configuration's design, and its purpose is to ensure between two aerial arrays
Larger horizontal spacing is kept, to reduce the coupling between two aerial arrays；Specifically, existing mimo antenna array must
It must ensure that the horizontal spacing between two array antenna arrays is more than 0.6 λ, at least one row in two array antenna arrays will be made accordingly
Aerial array and datum axis Y0Between horizontal spacing D1 be more than 0.3 λ；Such structure can cause each column aerial array to be distinguished
It is in serious mal-distribution relative to reflecting plate 300, i.e. the right boundary of each column aerial array is seriously asymmetric, while each column
Width has a long way to go between the right boundary of aerial array, seriously affects the performance of antenna product, such as can cause every array antenna
The antenna pattern of array is asymmetric, and both sides are front and back wider than difference and asymmetry, the wide poor astringency of wave of half-power beam width, wave
Width, the drawbacks such as axial difference.
For improving the wide convergence of wave, the prior art proposes the width by each radiating element in preset each aerial array
Degree, phase weights etc. come realize object beam cover (such as 65 ° of wave covers).In actual application, on the one hand to each
A radiating element predetermined magnitude phase weights are complicated for operation, and can consume radiation energy, lead to the coverage direction figure wave beam of antenna
It can shift；On the other hand the optimum beam width that can reach is about 56~75 °, and the wide convergence of wave is still poor.
It can be seen that above-mentioned many technical problems that existing mimo antenna is faced are solved, it is difficult larger.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of mimo antenna array, mimo antenna
And base station, it is intended to break through prior art bottleneck, improve the electric property of mimo antenna, improve the reliability of Antenna Operation.
In order to solve the above-mentioned technical problem, the utility model mimo antenna array the technical solution adopted is that：
A kind of mimo antenna array, including：
The first antenna array formed by multiple first array elements and the second aerial array formed by multiple second array elements；
The working frequency range of the first antenna array is at least partly identical as the working frequency range of second aerial array；
Each first array element of the first antenna array and each second array element edge of second aerial array
Datum axis direction is alternately distributed and non-interference successively；
If setting the centre wavelength of the first antenna array identical working frequency range with second aerial array as λ, institute
The horizontal spacing between the first array element and the datum axis and between second array element and the datum axis is stated to protect
It holds within the scope of 0~0.3 λ.
Further, each described the of each first array element of the first antenna array and second aerial array
Two array elements are distributed on the datum axis.
Further, each first array element of the first antenna array is distributed on the datum axis, described
Each second array element of second aerial array is set to the same side of the datum axis or partially along perpendicular to the reference axis
The different directions of line are staggered；
Or；
Each first array element of the first antenna array is set gradually along the first axis of reference, second antenna array
Each second array element of row is set gradually along the second axis of reference, first axis of reference and second axis of reference point
Set on the both lateral sides of the datum axis and parallel with the datum axis；
Or；
Each first array element of the first antenna array is staggeredly set along the different directions perpendicular to the datum axis
It sets, and each second array element of second aerial array is staggeredly set also along the different directions perpendicular to the datum axis
It sets.
Further, on the datum axis direction, the longitudinal pitch between adjacent two first array elements is
0.7~1.1 λ.
Further, on the datum axis direction, the longitudinal pitch between adjacent two second array elements is
0.7~1.1 λ.
Further, on the datum axis direction, divide between each first array element and/or each second array element
It is not arranged with equal longitudinal pitch.
Further, each first array element and/or each second array element set partially relative to the datum axis with
The horizontal spacing between the datum axis is equal.
Further, the quantity of first array element and second array element is equal.
Further, first array element and/or second array element include dual-polarization radiating unit；The dual polarization spoke
It is ± 45 ° of polarization elements or vertical/horizontal polarization element to penetrate unit.
Further, the first antenna array includes as multiple first radiating elements of first array element and conduct
Multiple second radiating elements of first array element, different each first radiating element of structure and each second radiation are single
Member is alternately distributed successively along the datum axis direction；
Second aerial array includes as multiple third radiating elements of second array element and as described second
Multiple 4th radiating elements of array element, the different each third radiating element of structure and each 4th radiating element are described in
Datum axis direction is alternately distributed successively.
The mimo antenna of the utility model the technical solution adopted is that：
A kind of mimo antenna, including reflecting plate and above-mentioned mimo antenna array, the mimo antenna array are set to described anti-
It penetrates on plate, the datum axis is the Axisymmetric Distributed Line of the reflecting plate.
Base station provided by the utility model, including above-mentioned mimo antenna.
Based on the above-mentioned technical proposal, the mimo antenna array, mimo antenna and base station of the utility model are relative to existing skill
Art at least has the advantages that：
By the way that the working frequency range of the working frequency range of first antenna array and second aerial array is arranged at least portion
Split-phase is same, between the first array element and datum axis of datum axis directional spreding and along the second of datum axis directional spreding
Horizontal spacing between array element and the datum axis is held within the scope of 0~0.3 λ, can not only reduce first antenna simultaneously
Gap between array and the right boundary width of the second aerial array, so as to improve first antenna battle array simultaneously to a certain extent
The right boundary symmetry of row and the second aerial array, and then improve the radiation direction of first antenna array and the second aerial array
Figure symmetry, and the wide better astringency of the wave of half-power beam width, wave width is made to narrow, it is front and back than also can with axial cross polarization
Be improved significantly；Front face area can also be reduced, save terrace resource；In addition, alternately being divided using the first array element, the second array element
The spread pattern of cloth also helps entire mimo antenna array has compact structure size on reflecting plate, and reduces antenna array
Vertical plane side lobe energy in column direction figure so that the vertical plane side lobe energy of each aerial array can cancel out each other；MIMO days
The overall performance of line is promoted, and is had a extensive future.
Description of the drawings
Fig. 1 is the first structural schematic diagram for the mimo antenna array that the utility model embodiment provides；
Fig. 2 is second of structural schematic diagram of the mimo antenna array that the utility model embodiment provides；
Fig. 3 is the third structural schematic diagram for the mimo antenna array that the utility model embodiment provides；
Fig. 4 is the 4th kind of structural schematic diagram of the mimo antenna array that the utility model embodiment provides；
Fig. 5 is the 5th kind of structural schematic diagram of the mimo antenna array that the utility model embodiment provides；
Fig. 6 is the simulation result diagram of mimo antenna array shown in Fig. 1；
Fig. 7 is the structural schematic diagram of existing mimo antenna array；
Fig. 8 is the simulation result diagram of mimo antenna array shown in Fig. 7；
Drawing reference numeral explanation：
100：First antenna array；101：First array element；200：Second aerial array；201：Second array element；300：Reflection
Plate；Y0：Datum axis；Y1：First axis of reference；Y2：Second axis of reference；d1：Horizontal spacing；d2：Longitudinal pitch；D1：It is existing
Horizontal spacing of the array element relative to datum axis in mimo antenna array；D2：In existing mimo antenna array between adjacent array element
Longitudinal pitch.
Specific implementation mode
In order to make the technical problems to be solved in the utility model, technical solution and advantageous effect be more clearly understood, below
In conjunction with accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific implementation described herein
Example is only used to explain the utility model, is not used to limit the utility model.
It should be noted that when element is referred to as on " being fixed on " or " being set to " another element, it can directly exist
On another element or it may be simultaneously present centering elements.When an element is known as " connection " another element, it is same
Sample can also be to be directly connected to another element or may be simultaneously present centering elements.
In the description of the present invention, it should be understood that term " first ", " second " are used for description purposes only, and
It should not be understood as indicating or imply relative importance or implicitly indicate the quantity of indicated technical characteristic.It defines as a result,
The feature of " first ", " second " can explicitly or implicitly include one or more this feature.In the utility model
In description, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In addition, term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "top", "bottom" "inner", "outside", " transverse direction ", " longitudinal direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or member
Part must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
Shown in Fig. 5, a kind of mimo antenna array that the utility model embodiment provides, including：
By the first antenna array 100 of multiple first array elements 101 (not showing carefully, shown in cross spider) formation and by multiple
The second aerial array 200 that second array element 201 (not showing carefully, shown in circle) is formed；
The working frequency range of first antenna array 100 is at least partly identical as the working frequency range of the second aerial array 200；
Each second array element 201 of 101 and second aerial array 200 of each first array element of first antenna array 100 is along benchmark
Axis Y0Direction is alternately distributed and non-interference successively；
If setting the centre wavelength of 200 identical working frequency range of first antenna array 100 and the second aerial array as λ, first
Array element 101 and datum axis Y0Between and the second array element 201 and datum axis Y0Between horizontal spacing d1 be held in 0~
Within the scope of 0.3 λ.
Above-mentioned mimo antenna array, by by the work of the working frequency range of first antenna array 100 and the second aerial array 200
Be arranged to as frequency range it is at least partly identical, along datum axis Y0First array element 101 and datum axis Y of directional spreding0Between and
Along datum axis Y0Second array element 201 and datum axis Y of distribution0Between horizontal spacing d1 be positively retained at 0~0.3 λ ranges
It is interior, for existing mimo antenna array, first antenna array 100 and the second aerial array 200 can not only be reduced simultaneously
Right boundary width between gap, so as to a certain extent simultaneously improve first antenna array 100 and the second antenna array
The right boundary symmetry of row 200, and then improve the antenna pattern pair of first antenna array 100 and the second aerial array 200
Title property, and the wide better astringency of the wave of half-power beam width, wave width is made to narrow, it is front and back than can also be obtained with axial cross polarization
It is obviously improved；Front face area can also be reduced, save terrace resource；In addition, alternately being divided using the first array element 101, the second array element 201
The spread pattern of cloth also helps entire mimo antenna array has compact structure size on reflecting plate 300.
It should be understood that 100 and second aerial array 200 of above-mentioned first antenna array is subordinated to different network systems respectively
System；The structure of 101 and second array element 201 of above-mentioned first array element may be the same or different.
It should be noted that said reference axis Y0For illusory reference line, and in practical applications, datum axis Y0
For the Axisymmetric Distributed Line of reflecting plate 300, i.e., reflecting plate 300 is about datum axis Y0Symmetrically.Above-mentioned each first array element 101 and Ge
Two array elements 201 are non-interference to be referred specifically to when each first array element 101 and each second array element 201 are mounted on reflecting plate 300,
Arbitrary first array element 101 and arbitrary second array element 201 reflecting plate 300 upper orthographic projection between each other, arbitrary neighborhood first
Orthographic projection of the array element 101 on reflecting plate 300 between each other, orthographic projection of the second array element of arbitrary neighborhood 201 on reflecting plate 300
Between each other without interference.
As a preferred embodiment of the utility model, referring to Fig.1, each first array element 101 of first antenna array 100
And second each second array element 201 of aerial array 200 be distributed in datum axis Y0On.I.e.：First antenna array 100 and second
Aerial array 200 is using coaxial arrangement.First antenna array 100 and the second aerial array 200 can be made using this spread pattern
It is arranged when on reflecting plate 300, each first array element 101 and each second array element 201 are symmetric both with respect to reflecting plate 300,
The right boundary of each first array element 101 and each second array element 201 is symmetrical, to make first antenna array 100 and the second antenna
The antenna pattern horizontal symmetrical of array 200, the wide convergence of wave of half-power beam width, wave width, antenna gain, front and back ratio
And axial cross polarization can reach optimum level, while can substantially reduce front face area, save a large amount of terrace resources, make MIMO
The reliability of antenna is substantially improved.
Although it should be noted that in the prior art in the presence of the spread pattern by two aerial arrays using coaxial arrangement,
But existing double frequency or the common technological means of multifrequency antenna are actually in the form of using the arranged in co-axial alignment, and using
It sets two aerial arrays to the entirely different common recognition for having become this field of working frequency range when arranged in co-axial alignment form.This practicality is new
Type embodiment overcomes work frequency of the prior art prejudice by the working frequency range of first antenna array 100 and the second aerial array 200
Section is arranged at least partly identical, is found by test of many times, and the property indices to promoting antenna have preferable effect；
On this basis, the bandwidth of working frequency range is respectively less than 20%, can further promote the property indices of antenna.
In practical applications, the bandwidth of above-mentioned working frequency range can be further arranged to be less than 16%.
It is the simulation result diagram provided by the existing mimo antenna array shown in Fig. 7 with reference to shown in Fig. 8；With reference to shown in Fig. 6
It is the simulation result diagram that the mimo antenna array being shown by fig. 1 provides, the wherein working frequency range of first antenna array 100 and second
The working frequency range of aerial array 200 is identical.Below according to the simulation result of Fig. 8 and Fig. 6, by table 1 to using shown in Fig. 1 originally
Utility model embodiment mimo antenna array (calling embodiment in the following text) (calls comparison in the following text relative to existing mimo antenna array shown in Fig. 7
Example) the advantages of carry out detailed comparisons' explanation.
Table 1：
| Reduced parameter | Comparative example | Embodiment |
| Half-power beam width | 72.4 °~77.9 ° | 63 °~64 ° |
| It is front and back than (dB) | 20.5 | 25.8 |
| ± 60 ° of axial cross polarizations (dB) | 15.6 | 30.7 |
1 comparing result of above table shows using mimo antenna array shown in FIG. 1, half-power beam width is 63 °~
64 °, the wide convergence of wave is very well in terms of existing technologies, wave width narrows；Front and back ratio and ± 60 ° of axial cross polarizations obviously change
It is kind.
Importantly, being learnt through applicant's test of many times, front face area can also be made using mimo antenna array shown in Fig. 1
About 50% is reduced, terrace resource is saved, the reliability of antenna is made to be substantially improved.
In addition, the working frequency range in the working frequency range and the second aerial array 200 of guarantee first antenna array 100 is arranged to
It is at least partly identical, along datum axis Y0First array element 101 and datum axis Y of directional spreding0Between and along datum axis Y0
Second array element 201 and datum axis Y of distribution0Between horizontal spacing d1 be positively retained within the scope of 0~0.3 λ under the premise of；
100 and second aerial array 200 of above-mentioned first antenna array can also use the spread pattern not being coaxially disposed, and specifically may include
Several spread patterns below：
As one embodiment of the utility model, with reference to shown in Fig. 2, each first array element point of first antenna array 100
It is distributed in datum axis Y0On, each second array element of the second aerial array 200 is along perpendicular to datum axis Y0Same direction it is alternately wrong
Open up the spread pattern set.
As one embodiment of the utility model, with reference to shown in Fig. 3, each first array element point of first antenna array 100
It is distributed in datum axis Y0On, each second array element of the second aerial array 200 is along perpendicular to datum axis Y0Different directions it is alternately wrong
Open up the spread pattern set.
As one embodiment of the utility model, with reference to shown in Fig. 4, each first array element edge of first antenna array 100
First axis of reference Y1It sets gradually, each second array element of the second aerial array 200 is along the second axis of reference Y2It sets gradually, the
One axis of reference Y1With the second axis of reference Y2It is divided into datum axis Y0Both lateral sides and with datum axis Y0It is parallel.It should
Understand, in the present embodiment, the first axis of reference Y1With datum axis Y0Between horizontal spacing d1 be 0 λ of ＜ d1≤0.3,
Similarly, the second axis of reference Y2With datum axis Y0Between horizontal spacing d1 also be 0 λ of ＜ d1≤0.3.
As one embodiment of the utility model, referring to Figure 5, each first array element 101 of first antenna array 100
Along perpendicular to datum axis Y0Different directions be staggered, and each second array element 201 of the second aerial array 200 also along hang down
Directly in datum axis Y0Different directions be staggered.Equally datum axis Y is divided into above-mentioned0First axis of reference of both sides
Y1With the second axis of reference Y2It illustrates, in the present embodiment, the first axis of reference Y1The first array element 101 is distributed in upper alternating
With the second array element 201, the second axis of reference Y2On be also alternately distributed the first array element 101 and the second array element 201, any two phase
The first adjacent array element 101 is located on different axiss of reference, and the second adjacent array element 201 of any two is also located at not
On same axis of reference.
Spread pattern shown in above-mentioned Fig. 2 to Fig. 5 relative to shown in Fig. 7 in the prior art by first antenna array 100 and
Two aerial arrays 200 are with relative to datum axis Y0For symmetrical mode is arranged side by side, in addition to better electric property,
The width for reducing mimo antenna array transverse direction is also helped, there is greater compactness of structure size.
As a preferred embodiment of the utility model, in datum axis Y0On direction, adjacent two the first array elements
Longitudinal pitch d2 between 101 is 0.7~1.1 λ.Longitudinal pitch d2 appoints relative in existing mimo antenna array shown in Fig. 7
Longitudinal pitch D2 in meaning aerial array between two neighboring array element is bigger, and such setting can effectively optimize antennas orthogonal
Face minor level, and in the same of the installation difficulty and cost for not increasing first antenna array 100 and the second aerial array 200
When, it can reduce and coupled between arranging, reduce the difficulty and cost of decoupling accordingly, make with the isolation between optimization array
The electric property and functional reliability of mimo antenna are more preferable.
It should be noted that above-mentioned longitudinal pitch d2 refers specifically to the longitudinal pitch between the geometric center of two array element
d2.Above-mentioned λ again refers to the centre wavelength of 101 and second array element of each first array element, 201 identical working frequency range.
In practical application, the working frequency range preferably completely phase of 100 and second aerial array 200 of above-mentioned first antenna array
Together.
Similarly, in datum axis Y0On direction, the longitudinal pitch d2 between adjacent two the second array elements 201 is also 0.7
~1.1 λ, are not described in detail here.
As a preferred embodiment of the utility model, in datum axis Y0On direction, each first array element 101 and/or
With equal longitudinal pitch d2 arrangements between each second array element 201.I.e.：In practical applications, each the of first antenna array 100
Preferably with equal longitudinal pitch d2 arrangements between one array element 101；Likewise, each second array element 201 of the second aerial array 200
Between it is also preferred that with equal longitudinal pitch d2 arrangements；To advanced optimize minor level.In order to more convenient to install, easy reason
Solution, in datum axis Y0On direction, each first array element 101 being arranged alternately and each second array element 201 is made to be indulged with equal
It is arranged to spacing d2, i.e. the first adjacent array element 101 of any two is equal with the longitudinal pitch d2 between the second array element 201.When
So, it according to different covering band requirements, gain requirements and radiance demand, using equidistant arrangement mode or does not adopt
All it is fairly simple and easy with equidistant arrangement mode, can not be limited herein.
As a preferred embodiment of the utility model, relative to datum axis Y0Each first array element 101 for setting partially and/
Or each second array element 201 and datum axis Y0Between horizontal spacing d1 it is equal.When using (the specific ginseng of spread pattern shown in Fig. 2
According to description before) when, each second array element 201 and datum axis Y0Between horizontal spacing d1 it is equal, first antenna array 100
Each first array element 101 coaxially distribution and the second aerial array 200 each second array element 201 coaxially be distributed, advantageously reduce peace
Fill difficulty and cost.When using spread pattern (referring in particular to description before) shown in Fig. 3, each second array element 201 and benchmark
Axis Y0Between horizontal spacing d1 it is equal, be conducive to improve 200 right boundary of the second aerial array symmetry, and then improve
The antenna pattern symmetry of second aerial array 200.When using spread pattern shown in Fig. 4 (referring in particular to description before)
When, the first axis of reference Y1With datum axis Y0Between horizontal spacing d1 be equal to the second axis of reference Y2With datum axis Y0It
Between horizontal spacing d1, each first array element 101 of first antenna array 100 coaxially distribution and the second aerial array 200 each the
The two coaxially distributions of array element 201, advantageously reduce installation difficulty and cost.When using spread pattern shown in Fig. 5 (referring in particular to before
Description) when, the first axis of reference Y1With datum axis Y0Between horizontal spacing d1 be equal to the second axis of reference Y2With reference axis
Line Y0Between horizontal spacing d1, be conducive to the symmetry and the second antenna array that improve 100 right boundary of first antenna array
The symmetry of 200 right boundary of row, and then improve the antenna pattern pair of first antenna array 100 and the second aerial array 200
Title property, and for arrangement mode shown in Fig. 1, further compressional wave is wide for energy, improves the degree of coupling between row.
As a preferred embodiment of the utility model, in the mimo antenna array included by first antenna array 100
The first array element 101 quantity it is equal with the quantity of the second array element 201 included by the second aerial array 200.Specifically in this reality
It applies in example, first antenna array 100 includes six the first array elements 101, and the second aerial array 200 includes six the second array elements 201.
Certainly, it can also be set according to the practical horizontal beam width, vertical beam width of mimo antenna and gain requirements etc. in.Cause
This, the quantity of involved the first array element 101 and the second array element 201, is intended merely to illustrate in the utility model embodiment
The specific embodiment of bright the utility model can not constitute any limit to mimo antenna array and mimo antenna in structure
It is fixed.
As a preferred embodiment of the utility model, the first array element 101 and/or the second array element 201 include dual polarization
Radiating element.Using dual-polarization radiating unit, be conducive to improve communication performance stability.
Specifically in the present embodiment, above-mentioned dual-polarization radiating unit can be common ± 45 ° of polarization elements, can also be
Vertical/horizontal polarization element, is not limited herein.
101 and/or second array element 201 of above-mentioned first array element either with three dimensions stereochemical structure be arranged form,
Existing planographic radiating element (such as micro-strip oscillator), paster vibrator or half-wave dipole etc. can also be used；Can also be
The combination of above-mentioned any type of antenna oscillator.When using the setting of three dimensions stereochemical structure, above-mentioned first array element 101 and the
The shape of two array elements 201 can be square shape, diamond shape, circle, ellipse, cruciform shape etc., according to actual needs can spirit
Selection living.
In practical application, a kind of optional structure is, each first array element 101 of above-mentioned first antenna array 100 can adopt
With the identical radiating element of structure, installed with simplifying.Another optional structure is that first antenna array 100 includes structure
Two kinds of different radiating elements, i.e. above-mentioned first antenna array 100 include multiple first radiating elements as the first array element 101
With multiple second radiating elements as the first array element 101, different each first radiating element of structure and each second radiating element
Along datum axis Y0Direction is alternately distributed；Such structure advantageously reduce row between the degree of coupling, to improve row between be isolated.
Similarly, the identical radiating element of structure can also be used in each second array element 201 in above-mentioned second aerial array 200,
It is installed with simplifying；Alternatively, the second aerial array 200 includes as multiple third radiating elements of the second array element 201 and as
Multiple 4th radiating elements of two array elements 201, the different each third radiating element of structure and tetra- radiating elements of Ge are along reference axis
Line Y0Direction is alternately distributed；This will not be repeated here.
The utility model embodiment additionally provides a kind of mimo antenna, including reflecting plate 300 and above-mentioned mimo antenna array,
Mimo antenna array is set on reflecting plate 300, datum axis Y0For the Axisymmetric Distributed Line of reflecting plate 300.
Each first array element 101 of above-mentioned first antenna array 100 and the second array element 201 of above-mentioned second aerial array 200
Homonymy in reflecting plate 300 is set.
Specifically in the present embodiment, first array element 101 can be by exhausted some or all of in above-mentioned first antenna array 100
Edge module (not shown) is arranged on reflecting plate 300；Correspondingly, the second array element some or all of in the second aerial array 200
201 can be also arranged by insulation module on reflecting plate 300.Insulation module can play the role of mounting seat, the first array element
101, the second array element 201 is arranged on the insulation module, easy to disassemble, while the insulation characterisitic of insulation module can be effectively prevented from
Because of the interference that electric current conduction generates between each array element, to be conducive to improve the stability of antenna communication.
The utility model embodiment additionally provides a kind of base station, including above-mentioned mimo antenna.
Above-mentioned mimo antenna and base station with the utility model mimo antenna array embodiment due to being based on same design, band
The technique effect come is identical as the utility model mimo antenna array embodiment, and particular content can be found in the utility model MIMO days
Narration in linear array embodiment, details are not described herein again.
It should be noted that above-mentioned mimo antenna and base station be additionally provided with phase-shift system, combiner and forming network etc. other
Required element, structure or system, these elements, structure or system are common in the prior art, therefore are not described further.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.
Claims (12)
1. a kind of mimo antenna array, which is characterized in that including：
The first antenna array formed by multiple first array elements and the second aerial array formed by multiple second array elements；
The working frequency range of the first antenna array is at least partly identical as the working frequency range of second aerial array；
Each first array element of the first antenna array and each second array element of second aerial array are along benchmark
Axis direction is alternately distributed and non-interference successively；
If setting the centre wavelength of the first antenna array identical working frequency range with second aerial array as λ, described
Horizontal spacing between one array element and the datum axis and between second array element and the datum axis is held in 0
Within the scope of~0.3 λ.
2. mimo antenna array according to claim 1, which is characterized in that each described the first of the first antenna array
Array element and each second array element of second aerial array are distributed on the datum axis.
3. mimo antenna array according to claim 1, which is characterized in that
Each first array element of the first antenna array is distributed on the datum axis, second aerial array
Each second array element is set to the same side of the datum axis or is handed over along the different directions perpendicular to the datum axis partially
Mistake setting；
Or；
Each first array element of the first antenna array is set gradually along the first axis of reference, second aerial array
Each second array element is set gradually along the second axis of reference, and first axis of reference and second axis of reference are divided into
The both lateral sides of the datum axis are simultaneously parallel with the datum axis；
Or；
Each first array element of the first antenna array is staggered along the different directions perpendicular to the datum axis, and
Each second array element of second aerial array is staggered also along the different directions perpendicular to the datum axis.
4. mimo antenna array according to claim 1, which is characterized in that adjacent on the datum axis direction
Longitudinal pitch between two first array elements is 0.7~1.1 λ.
5. mimo antenna array according to claim 1, which is characterized in that adjacent on the datum axis direction
Longitudinal pitch between two second array elements is 0.7~1.1 λ.
6. mimo antenna array according to claim 1, which is characterized in that each described on the datum axis direction
It is arranged respectively with equal longitudinal pitch between first array element and/or each second array element.
7. mimo antenna array according to claim 1, which is characterized in that each institute set partially relative to the datum axis
The horizontal spacing stated between the first array element and/or each second array element and the datum axis is equal.
8. mimo antenna array according to claim 1, which is characterized in that first array element and second array element
Quantity is equal.
9. mimo antenna array according to claim 1, which is characterized in that first array element and/or second gust described
Member includes dual-polarization radiating unit；The dual-polarization radiating unit is ± 45 ° of polarization elements or vertical/horizontal polarization element.
10. mimo antenna array according to any one of claim 1 to 9, which is characterized in that
The first antenna array includes as multiple first radiating elements of first array element and as first array element
Multiple second radiating elements, different each first radiating element of structure and each second radiating element are along the benchmark
Axis direction is alternately distributed successively；
Second aerial array includes as multiple third radiating elements of second array element and as second array element
Multiple 4th radiating elements, the different each third radiating element of structure and each 4th radiating element are along the benchmark
Axis direction is alternately distributed successively.
11. a kind of mimo antenna, which is characterized in that including MIMO days described in any one of reflecting plate and claims 1 to 10
Linear array, the mimo antenna array are set on the reflecting plate, and the datum axis is the Axisymmetric Distributed Line of the reflecting plate.
12. a kind of base station, which is characterized in that including the mimo antenna described in claim 11.
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| CN110444905A (en) * | 2019-08-16 | 2019-11-12 | 之江实验室 | A kind of two dimension mimo antenna battle array |
| CN111276824A (en) * | 2018-12-04 | 2020-06-12 | 深圳市超捷通讯有限公司 | Antenna structure and wireless communication device with same |
| TWI713256B (en) * | 2018-06-13 | 2020-12-11 | 聯發科技股份有限公司 | Multi-band dual-polarized antena structure and wireless communication device thereof |
| CN113594718A (en) * | 2021-09-28 | 2021-11-02 | 华南理工大学 | Antenna array and wireless communication device |
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| TWI713256B (en) * | 2018-06-13 | 2020-12-11 | 聯發科技股份有限公司 | Multi-band dual-polarized antena structure and wireless communication device thereof |
| CN111276824A (en) * | 2018-12-04 | 2020-06-12 | 深圳市超捷通讯有限公司 | Antenna structure and wireless communication device with same |
| US11342661B2 (en) | 2018-12-04 | 2022-05-24 | Mobile Drive Netherlands B.V. | Antenna structure and wireless communication device using the same |
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| CN110444905A (en) * | 2019-08-16 | 2019-11-12 | 之江实验室 | A kind of two dimension mimo antenna battle array |
| CN113594718A (en) * | 2021-09-28 | 2021-11-02 | 华南理工大学 | Antenna array and wireless communication device |
| CN113594718B (en) * | 2021-09-28 | 2022-01-07 | 华南理工大学 | Antenna array and wireless communication device |
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