CN208157638U - A kind of multisystem antenna for base station of controllable beam angle - Google Patents
A kind of multisystem antenna for base station of controllable beam angle Download PDFInfo
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- CN208157638U CN208157638U CN201820629453.4U CN201820629453U CN208157638U CN 208157638 U CN208157638 U CN 208157638U CN 201820629453 U CN201820629453 U CN 201820629453U CN 208157638 U CN208157638 U CN 208157638U
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Abstract
The utility model relates to communication antenna technical fields, and in particular to a kind of multisystem antenna for base station of controllable beam angle.The utility model includes metallic reflection plate and the radiating element that is mounted in metallic reflection plate；The radiating element is parallel to each other along multiple row longitudinal direction straight line and waits spacing arrangement in varying numbers, constitutes mattress array column；First radiating element of each column of the mattress array column is located on same transverse direction straight line and array direction intersects vertically.The utility model can control the radiation characteristics such as beam angle, gain, wave beam irrelevance and the cross polarization discrimination of antenna subsystem by adjusting the power ratio and phase difference of two-way power splitter in lateral submatrix.The utility model can in meeting Practical Project use to the miniature requirement of antenna volume under the premise of, guarantee antenna beam angle be 65 degree or so, the radiances index such as gain, wave beam irrelevance and cross polarization discrimination is not inferior to conventional aerial.
Description
Technical field
The utility model relates to communication antenna technical fields, and in particular to a kind of multisystem base station of controllable beam angle
Antenna.
Background technique
Antenna for base station is the systemic component of wireless communication system, and characteristic directly affects the globality of entire wireless network
Energy.The radiation spy of antenna can be adjusted flexibly by position, amplitude and the phase of each array element of control in array antenna according to demand
Property, it is a kind of common type of current base station antenna.Under normal circumstances, multisystem antenna for base station has been internally integrated multiple line arrays
Column.4G network from 3G network to 3G/WLAN integrated network, then till now, mobile communication system experiencing swift and violent development.
In order to be compatible with a variety of communication standards, change the state of current antenna covering of the fan position anxiety, antenna for base station miniaturization has become not
Carry out the development trend of antenna for base station.How the number of channels of antenna, for co-sited co-located reduction are increased in size small as far as possible
Antenna for base station quantity simplifies antenna installation maintenance and is of great significance.The miniaturization of antenna volume limits so that more array antennas
Width it is smaller, corresponding reflection board size is also smaller.In this case, the horizontal plane half-power wave of single linear array
Substantially 90 degree to 100 degree or so of beam width.And presently most used three sector base stations system of city, it is desirable that antenna is horizontal wave
The directional aerial that beam width is 65 degree.Therefore, it is necessary to take corresponding measure to control the wave of small size multisystem antenna for base station
Beam width.
The prior art is distributed by the amplitude of each linear array of setting, the weight of phase, to synthesize 65 degree of half-power beams
The directional diagram of width, but this method is complicated for operation, and leads to the degradation of array radiation efficiency.As shown in Figure 1, a kind of control
The method of more beamwidths of array antenna is suggested in Chinese patent CN 102308438A, main to be combined by array element in water
The horizontal plane beam angle of antenna square is reduced to the mode of interlaced arrangement.According to array synthetic theory, which is to control
Beam angle is largely effective, but not on the same axis due to each array element, results in the decaying of antenna gain, and gain determines base
The critical index of station antenna coverage distance.As shown in Fig. 2, the method for another adjustment antenna system beam angle is in Chinese special
Benefit 201580056133.3 is suggested, and mainly places dielectric-slab by the front in array element, and control dielectric-slab relative position,
The parameters such as thickness and dielectric constant adjust the beam angle of antenna system.Similarly, this method results in the drop of antenna gain
It is low, while increasing the thickness of antenna.
Utility model content
In order to overcome the deficiencies of the above existing technologies, the utility model proposes a kind of multisystems of controllable beam angle
Antenna for base station under the premise of in meeting Practical Project use to the miniature requirement of antenna volume, guarantees that the wave beam of antenna is wide
Degree is 65 degree or so.
The utility model proposes a kind of multisystem antenna for base station of controllable beam angle, including metallic reflection plate and installation
Radiating element in metallic reflection plate；
The radiating element is parallel to each other along multiple row longitudinal direction straight line and waits spacing arrangement in varying numbers, constitutes mattress array
Column；First radiating element of each column of the mattress array column is located on same transverse direction straight line, and vertical with array direction
Intersection.
Further, longitudinal straight line array quantity of the mattress array column is even number.
Further, the radiating element includes mutually orthogonal the first oscillator and the second oscillator；The form of the oscillator
It can also be the combination of multiclass antenna oscillator for paster vibrator or half-wave dipole or micro-strip oscillator.
Further, the longitudinal pitch of the radiating element includes longitudinal first spacing, longitudinal second spacing, longitudinal third
Spacing, longitudinal 4th spacing, longitudinal 5th spacing and longitudinal 6th spacing；Second spacing of longitudinal direction, is indulged at longitudinal third spacing
It is equal to twice of first spacing of longitudinal direction to the sum of the 4th spacing, longitudinal 5th spacing and longitudinal 6th spacing.
Further, first spacing of longitudinal direction is 0.8 times of wavelength of operating center frequency.
Further, the subsystem of the multisystem antenna for base station includes multiple lateral submatrixs and multiple longitudinal submatrixs；Institute
Lateral submatrix is stated as single radiating composite to connect with each radiating element of longitudinal submatrix by feeding network.
Further, the lateral submatrix includes corresponding two radiating elements of adjacent longitudinal direction linear array.
Further, corresponding two radiating elements of the adjacent longitudinal direction linear array are connected by two-way power splitter.
Further, longitudinal submatrix contains at least two the radiating element in linear array direction along longitudinal direction, and along
Vertical linear equidistantly arranges.
Further, the equidistant distance is longitudinal first distance.
Compared with prior art, the utility model has the advantages that：
Subsystem aerial array in multisystem antenna for base station provided by the utility model by multiple lateral submatrixs with it is multiple
Longitudinal submatrix composition, by adjusting the power ratio and phase difference of two-way power splitter in lateral submatrix, can control antenna subsystem
The radiation characteristics such as beam angle, gain, wave beam irrelevance and cross polarization discrimination.One kind that the utility model is proposed can
The multisystem antenna for base station for controlling beam angle can overcome prior art operation complexity, antenna radiation efficiency lowly and antenna
The defects of gain obviously decays.Under the premise of in meeting Practical Project use to the miniature requirement of antenna volume, guarantee day
The beam angle of line is 65 degree or so, and the radiances index such as gain, wave beam irrelevance and cross polarization discrimination is not inferior to often
Advise antenna.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings；
Fig. 1 is a kind of array antenna of patent 2011800006110 and the method array element cloth for controlling the beamwidth of array antenna
Set schematic diagram；
Fig. 2 is the antenna structure signal for the dielectric sheet load that patent 2015800561333 has for controlling beam angle
Figure；
Fig. 3 is a kind of multisystem antenna for base station embodiment antenna schematic diagram of controllable beam angle of the utility model；
Fig. 4 is a kind of another embodiment antenna signal of multisystem antenna for base station of controllable beam angle of the utility model
Figure.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, simultaneously below by specific specific example
The embodiments of the present invention is described with reference to the drawings, those skilled in the art can be by content disclosed in the present specification easily
Understand the further advantage and effect of the utility model.The utility model can also be implemented by other different specific examples or
Using, details in this specification can also be based on different perspectives and applications, under the spirit without departing substantially from the utility model into
The various modifications of row and change.
The utility model proposes a kind of multisystem antenna for base station of controllable beam angle, specifically include metallic reflection plate and
The radiating element being mounted in metallic reflection plate；
The radiating element is parallel to each other along multiple row longitudinal direction straight line and waits spacing arrangement in varying numbers, constitutes mattress array
Column；First radiating element of each column of the mattress array column is located on same transverse direction straight line, and vertical with array direction
Intersection.
It is even number that the mattress array, which arranges longitudinal straight line array quantity,.
The radiating element includes mutually orthogonal the first oscillator and the second oscillator；The form of the oscillator is paster vibrator
Or half-wave dipole or micro-strip oscillator, it can also be the combination of multiclass antenna oscillator.
The longitudinal pitch of the radiating element includes longitudinal first spacing, longitudinal second spacing, longitudinal third spacing, longitudinal direction
4th spacing, longitudinal 5th spacing and longitudinal 6th spacing；Between second spacing of longitudinal direction, longitudinal third spacing, the longitudinal 4th
It is equal to twice of first spacing of longitudinal direction away from the sum of, longitudinal 5th spacing and longitudinal 6th spacing.First spacing of longitudinal direction is
0.8 times of wavelength of operating center frequency.
The subsystem of the multisystem antenna for base station includes multiple lateral submatrixs and multiple longitudinal submatrixs；The transverse direction submatrix
It is connect with each radiating element of longitudinal submatrix by feeding network as single radiating composite.The transverse direction submatrix includes phase
Corresponding two radiating elements of neighbour longitudinal direction linear array.Corresponding two radiating elements of the adjacent longitudinal linear array pass through two
The connection of road power splitter.
The longitudinal direction submatrix contains at least two the radiating element in linear array direction along longitudinal direction, and along vertical linear etc.
Spacing arrangement.The equidistant distance is longitudinal first distance.
Embodiment 1：
A kind of related work of the multisystem antenna for base station of controllable beam angle is explained by following specific embodiments
Principle.
In the utility model embodiment, as shown in figure 3, the multisystem antenna for base station includes metallic reflection plate 1, installation
Multiple row radiating element 2 in metallic reflection plate 1.
Array element of the radiating element 2 as array antenna, includes the first mutually orthogonal oscillator 201 and the second oscillator
202, it can also be the combination of multiclass antenna oscillator that the form of oscillator, which can be paster vibrator, half-wave dipole, micro-strip oscillator etc.,.
Equal number of radiating elements 2 are arranged along a plurality of longitudinal straight line unequal spacing being parallel to each other, and form multiple row antenna
Array.First radiating element 2 of each column aerial array intersects vertically on same transverse direction straight line with array direction.It is longitudinal
On, the spacing of radiating element 2 includes between longitudinal first space D 1, longitudinal second space D 2, longitudinal third space D the 3, the longitudinal 4th
Away from D4, longitudinal 5th space D 5 and the 6th space D 6.Wherein, longitudinal first space D 1 is maximum spacing, substantially work centre
0.8 times of wavelength of frequency.Longitudinal second space D 2, longitudinal third space D 3, longitudinal 4th space D 4,5 and of longitudinal 5th space D
6th space D, 6 spacing is respectively less than longitudinal first space D 1.
Preferably, the quantity of antenna longitudinal direction linear array is even number.
The corresponding array Array1 of a subsystem in the multisystem antenna for base station by multiple transverse direction submatrix A with it is multiple
Longitudinal submatrix B composition.Wherein, lateral submatrix A includes two radiating elements 2 corresponding positioned at adjacent longitudinal direction linear array；It is longitudinal
Submatrix B includes two or more radiating elements 2, is equidistantly arranged along vertical linear, and spacing is longitudinal first space D 1.
Two radiating elements 2 that the transverse direction submatrix A includes are attached using two-way power splitter, by adjusting two-way function
Divide the power ratio and phase difference of device output end, so that half function with 65 degree or so of the corresponding antenna subsystem of array Array1
Rate beam angle, and guarantee that the radiances indexs such as gain, wave beam irrelevance and cross polarization discrimination are not inferior to conventional aerial.
The array Array1 successively includes longitudinal submatrix B1, lateral submatrix A1, transverse direction submatrix A2 and longitudinal submatrix B2.It is vertical
Neighbouring 2 spacing of radiating element to submatrix B1 and lateral submatrix A1 is longitudinal second space D 2, lateral submatrix A1 and laterally son
Neighbouring 2 spacing of radiating element of battle array A2 is longitudinal longitudinal 4th space D 4 of third space D 3+, lateral submatrix A2 and longitudinal submatrix
Neighbouring 2 spacing of radiating element of B2 is longitudinal longitudinal 6th space D 6 of 5th space D 5+.
Preferably, longitudinal 4th spacing of 2 × longitudinal longitudinal second longitudinal direction space D 2+ third space D 3+ of first space D 1=
Longitudinal longitudinal 6th space D 6 of 5th space D 5+ of D4+.
Transverse direction submatrix A1, A2 is logical respectively as each radiating element 2 in single radiating composite and longitudinal submatrix B1, B2
It crosses feeding network to link together, forms a completed antenna subsystem.
As shown in figure 3, most of radiating element 2 of the array Array1 is located at secondary series longitudinal direction linear array, similarly
The radiating element 2 of remaining longitudinal linear array can also constitute multiple independent antenna subsystems using identical group of battle array method.
Embodiment 2：
It is changed as shown in figure 4, the utility model embodiment has carried out part on the basis of embodiment 1.Specifically, by phase
Adjacent longitudinal direction linear array misplaces in the longitudinal direction, and dislocation distance is less than longitudinal first space D 1.One independent sub-antenna system is corresponding
Array Array2 be made of multiple oblique submatrix C and multiple longitudinal direction submatrix B.Oblique submatrix C includes to be located at adjacent longitudinal straight line
Corresponding two radiating elements 2 of array；Longitudinal submatrix B includes two or more radiating elements 2, along vertical linear etc.
Longitudinal first space D 1 arrangement of spacing.Oblique submatrix C includes that two radiating elements 2 are attached using two-way power splitter, is passed through
The power ratio and phase difference of two-way power splitter output end are adjusted, so that the corresponding antenna subsystem of array Array2 has 65 degree
The half-power beam width of left and right, and guarantee that the radiances indexs such as gain, wave beam irrelevance and cross polarization discrimination are not bad
In conventional aerial.
The utility model proposes multisystem antenna for base station in subsystem aerial array by multiple lateral submatrixs with it is multiple
Longitudinal submatrix composition, by adjusting the power ratio and phase difference of two-way power splitter in lateral submatrix, can control antenna subsystem
The radiation characteristics such as beam angle, gain, wave beam irrelevance and cross polarization discrimination.
A kind of multisystem antenna for base station for controllable beam angle that the utility model is proposed, can overcome the prior art
The defects of complicated for operation, antenna radiation efficiency is lowly obviously decayed with antenna gain.To antenna in meeting Practical Project use
Under the premise of the miniature requirement of volume, guarantee that the beam angle of antenna is 65 degree or so, gain, wave beam irrelevance and cross-pole
Change the radiances indexs such as resolution and is not inferior to conventional aerial.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, it is clear that this is practical
Novel above-described embodiment is merely examples for clearly illustrating the present invention, and is not to the utility model
The restriction of embodiment.For those of ordinary skill in the art, it can also be made on the basis of the above description
Its various forms of variation or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all in the utility model
Spirit and principle within, made any modifications, equivalent replacements, and improvements etc. should be included in the protection model of the utility model
Within enclosing.
Claims (10)
1. a kind of multisystem antenna for base station of controllable beam angle including metallic reflection plate and is mounted in metallic reflection plate
Radiating element；It is characterized in that,
The radiating element is parallel to each other along multiple row longitudinal direction straight line and waits spacing arrangement in varying numbers, constitutes mattress array column；
First radiating element of each column of the mattress array column is located on same transverse direction straight line, and phase vertical with array direction
It hands over.
2. a kind of multisystem antenna for base station of controllable beam angle according to claim 1, which is characterized in that the multiple row
Longitudinal straight line array quantity of aerial array is even number.
3. a kind of multisystem antenna for base station of controllable beam angle according to claim 1, which is characterized in that the radiation
Unit includes mutually orthogonal the first oscillator and the second oscillator；
The form of the oscillator is paster vibrator or half-wave dipole or micro-strip oscillator, can also be the combination of multiclass antenna oscillator.
4. a kind of multisystem antenna for base station of controllable beam angle according to claim 1, which is characterized in that the radiation
The longitudinal pitch of unit includes longitudinal first spacing, longitudinal second spacing, longitudinal third spacing, longitudinal 4th spacing, Zong Xiang
Five spacing and longitudinal 6th spacing；Second spacing of longitudinal direction, longitudinal third spacing, longitudinal 4th spacing, longitudinal 5th spacing
And the sum of longitudinal 6th spacing is equal to twice of first spacing of longitudinal direction.
5. a kind of multisystem antenna for base station of controllable beam angle according to claim 4, which is characterized in that the longitudinal direction
First spacing is 0.8 times of wavelength of operating center frequency.
6. a kind of multisystem antenna for base station of controllable beam angle according to claim 1, which is characterized in that the polyphyly
The subsystem of system antenna for base station includes multiple lateral submatrixs and multiple longitudinal submatrixs；
The transverse direction submatrix is connect with each radiating element of longitudinal submatrix by feeding network as single radiating composite.
7. a kind of multisystem antenna for base station of controllable beam angle according to claim 6, which is characterized in that the transverse direction
Submatrix includes corresponding two radiating elements of adjacent longitudinal direction linear array.
8. a kind of multisystem antenna for base station of controllable beam angle according to claim 7, which is characterized in that described adjacent
Corresponding two radiating elements of longitudinal linear array are connected by two-way power splitter.
9. a kind of multisystem antenna for base station of controllable beam angle according to claim 6, which is characterized in that the longitudinal direction
Submatrix contains at least two the radiating element in linear array direction along longitudinal direction, and equidistantly arranges along vertical linear.
10. a kind of multisystem antenna for base station of controllable beam angle according to claim 9, which is characterized in that described etc.
Distance is longitudinal first distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820629453.4U CN208157638U (en) | 2018-04-28 | 2018-04-28 | A kind of multisystem antenna for base station of controllable beam angle |
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| CN201820629453.4U CN208157638U (en) | 2018-04-28 | 2018-04-28 | A kind of multisystem antenna for base station of controllable beam angle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767498A (en) * | 2018-04-28 | 2018-11-06 | 广东博纬通信科技有限公司 | A kind of multisystem antenna for base station of controllable beam angle |
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- 2018-04-28 CN CN201820629453.4U patent/CN208157638U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767498A (en) * | 2018-04-28 | 2018-11-06 | 广东博纬通信科技有限公司 | A kind of multisystem antenna for base station of controllable beam angle |
| CN108767498B (en) * | 2018-04-28 | 2024-01-30 | 广东博纬通信科技有限公司 | Multisystem base station antenna capable of controlling wave beam width |
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