CN105977652B - Dual-frequency array antenna - Google Patents
Dual-frequency array antenna Download PDFInfo
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- CN105977652B CN105977652B CN201610538612.5A CN201610538612A CN105977652B CN 105977652 B CN105977652 B CN 105977652B CN 201610538612 A CN201610538612 A CN 201610538612A CN 105977652 B CN105977652 B CN 105977652B
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- vibrator
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- 230000010287 polarization Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000010295 mobile communication Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/104—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention provides a kind of dual-frequency array antenna, including reflecting plate, and multiple low-frequency vibrators and multiple high frequency oscillators on the reflecting plate, high frequency oscillator is nested in the low-frequency vibrator, and high frequency oscillator is equipped between adjacent low-frequency vibrator, it is nested in the low-frequency vibrator described at least one that there are two the high frequency oscillators.Dual-frequency array antenna provided by the invention, according to the frequency range of actual low-frequency vibrator and high frequency oscillator, select different group battle array schemes, the spacing for realizing low-frequency vibrator is 2 times to 4 times of different multiples relationship of the average headway between aerial array high frequency oscillator, achievees the purpose that optimize antenna performance with this.
Description
Technical field
The present invention relates to the communications fields, more particularly to a kind of dual-frequency array antenna.
Background technique
With the fast development of mobile communication technology, requirement of the mobile communications network to antenna for base station is higher and higher, especially
It is more urgent to all channel antenna demand that can be compatible with 2G, 3G, 4G network frequency range simultaneously.In addition, with each operator's net
Deepening continuously for network optimization, proposes requirements at the higher level to performance, the size of multifrequency series antenna.
According to aerial array principle, when the cell spacing of antenna is more than a wavelength, antenna will appear big minor lobe, lead to day
The decline of beta radiation performance, therefore a wavelength is not to be exceeded in antenna spacing when design.Conventional 2G/3G Bifrequency shared antenna is low
The wavelength of frequent section (820-960MHz) is about 2 times of high-frequency band (1710-2170MHz) wavelength.Therefore, lead in the prior art
It is often that 2 times of high frequency radiating element spacing are configured with low frequency radiating element spacing, as given by patent CN101425626
Design scheme (as shown in Figure 1), the program is using the nested high frequency radiating element of a low frequency radiating element, two low frequency spokes
It penetrates between unit and is provided with a high frequency radiating element；It is high frequency that another common prior art, which is low frequency radiating element spacing,
3 times of settings of radiating element spacing, the technical solution as given by patent CN102299398A (as shown in Figure 2), the program are
The nested high frequency radiating element of one low frequency radiating element, there are two high frequency radiation lists for setting between two low frequency radiating elements
Member.
4G LTE working frequency range extends to 2700MHz at present, and still, the frequency range that the following 5G is used is that 3.5GHz is even higher
Frequency range, the wavelength of low frequency band are twice to 4 times of high-frequency band, if still using common 2 times or 3 times of low-and high-frequency oscillator
Line space design will lead to high frequency or higher minor lobe occurs in low frequency vertical face directional diagram, it is difficult to realize optimal radiance.Though
Right patent publication No. CN102969575A (as shown in Figure 3) gives a kind of design scheme based on 2.5 times of spacing, but it is provided
Scheme be at least one low frequency radiating element between two adjacent high frequency radiating elements, the electromagnetism of low-and high-frequency radiating element
Coupling is big, designs very difficult.
Therefore, between being designed in ideal array between double frequency oscillator in the case where rationally control antenna overall dimensions
Away from still very difficult with the design for reaching optimization antenna electric parameter, there is an urgent need to improve.
Summary of the invention
The object of the present invention is to provide a kind of dual-frequency array antennas, according to the frequency of actual low-frequency vibrator and high frequency oscillator
Section, selects different group battle array schemes, achievees the purpose that optimize antenna performance.
To solve the above-mentioned problems, the present invention provides a kind of dual-frequency array antenna, including reflecting plate, and is set to described anti-
The multiple low-frequency vibrators and multiple high frequency oscillators on plate are penetrated, are nested with high frequency oscillator, and adjacent low frequency in the low-frequency vibrator
High frequency oscillator is equipped between oscillator, there are two the high frequency oscillators for nesting in the low-frequency vibrator described at least one.
Further, high frequency oscillator and a high frequency there are two being arranged respectively in the adjacent low-frequency vibrator of any two
Oscillator.
Further, high frequency oscillator there are two being arranged respectively in the adjacent low-frequency vibrator of any two.
Further, the low-frequency vibrator includes the symmetrical dipole of two pairs of polarization orthogonals, and each oscillator includes oscillator
Arm and oscillator balun, the oscillator arms intersect vertically with the oscillator balun and connect.
Further, the oscillator balun is fixed on the reflecting plate, and the oscillator balun and the reflecting plate
Angle is not less than 60 °.
Further, the angle of the oscillator balun and the reflecting plate is 90 °.
Further, a high frequency oscillator is equipped between the adjacent low-frequency vibrator.
Further, high frequency oscillator there are two being set between the adjacent low-frequency vibrator.
Further, average headway of the spacing of the two neighboring low-frequency vibrator between aerial array high frequency oscillator
3 times.
Further, between average between aerial array high frequency oscillator of the average headway of the two neighboring low-frequency vibrator
Away from 4 times.
Further, a high frequency oscillator is equipped between the adjacent low-frequency vibrator.
Further, high frequency oscillator there are two being set between the adjacent low-frequency vibrator.
Further, between average between aerial array high frequency oscillator of the average headway of the two neighboring low-frequency vibrator
Away from 2.5 times.
Further, between average between aerial array high frequency oscillator of the average headway of the two neighboring low-frequency vibrator
Away from 3.5 times.
The solution of the invention has the following advantages:
1, the present invention includes reflecting plate, and multiple low-frequency vibrators and multiple high frequency oscillators on the reflecting plate,
Along the coaxial setting of horizontal direction of the reflecting plate, sectional dimension is small for the low-frequency vibrator and the high frequency oscillator；The low frequency
It is nested with high frequency oscillator in oscillator, and is equipped with high frequency oscillator, the low-frequency vibrator described at least one between adjacent low-frequency vibrator
It is middle that nested there are two the high frequency oscillators to select different group battle arrays by the frequency range of actual low-frequency vibrator and high frequency oscillator
Scheme, to realize 2 times to 4 times of difference of average headway of the low-frequency vibrator average headway between aerial array high frequency oscillator
Multiple proportion achievees the purpose that optimize antenna performance with this.
2, the low-frequency vibrator in the present invention includes the symmetrical dipole of two pairs of polarization orthogonals, and each oscillator includes oscillator arms
With oscillator balun, the oscillator arms intersect vertically with the oscillator balun and connect, and oscillator balun is fixed on reflecting plate, and described
The angle of oscillator balun and the reflecting plate is greater than or equal to 60 °, and preferably 90 °, can make can be nested high in low-frequency vibrator
Frequency vibration, and reduce influence of the oscillator balun to high frequency oscillator.The additional aspect of the present invention and advantage will in the following description
Part provides, these will become apparent from the description below, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is a kind of broadband annular dual polarized radiating element and line that China's CN101425626 patent announcement provides
The structural schematic diagram of array antenna；
Fig. 2 is a kind of structural schematic diagram for dual-band dual-polarized antenna that China's CN102299398A patent announcement provides；
Fig. 3 is a kind of structural schematic diagram for multi-frequency array antenna that China's CN102969575A patent announcement provides；
Fig. 4 is the top view of one dual-frequency array antenna of the embodiment of the present invention；
Fig. 5 is the perspective view of one dual-frequency array antenna of the embodiment of the present invention；
Fig. 6 is one oscillator balun of the embodiment of the present invention and reflecting plate angle schematic diagram；
Fig. 7 is the top view of two dual-frequency array antenna of the embodiment of the present invention；
Fig. 8 is the perspective view of two dual-frequency array antenna of the embodiment of the present invention.
Wherein, in the embodiment of the present invention: 1, reflecting plate；2, low-frequency vibrator；21, oscillator arms；22, oscillator balun；3, high frequency
Oscillator.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Embodiment one
In conjunction with shown in Fig. 4 and Fig. 5, the embodiment of the present invention provides a kind of structure of dual-frequency array antenna, the dual frequency array day
Line includes reflecting plate 1, and multiple low-frequency vibrators 2 and multiple high frequency oscillators 3, low-frequency vibrator 2 and high frequency on reflecting plate 1
For oscillator 3 along the coaxial setting of horizontal direction of reflecting plate 1, sectional dimension is small；High frequency oscillator 3 is nested in low-frequency vibrator 2, and adjacent
Low-frequency vibrator 2 between be equipped with high frequency oscillator 3, it is nested at least one low-frequency vibrator 2 that there are two high frequency oscillators 3.Pass through reality
Low-frequency vibrator 2 and high frequency oscillator 3 frequency range, different group battle array schemes is selected, to realize that the average headway of low-frequency vibrator 2 is
2 times to 4 times of different multiples relationship of the average headway between aerial array high frequency oscillator 3, reaches optimization antenna performance with this
Purpose.In addition, low-frequency vibrator 2 and high frequency oscillator 3 work in different frequency range in disclosed all embodiments
Range, " low frequency " in low-frequency vibrator 2 here indicate low relative to " high frequency " frequency in high frequency oscillator 3.Preferably, low frequency
Oscillator 2 works in 790-960MHz band limits, covers 2G, 3G mobile communication frequency range within the scope of Present Global, and high frequency vibrating
Son 3 works in 1700-2700MHz band limits, covers the mobile communication frequency range of the 4G such as LTE standard within the scope of Present Global,
The wavelength of low frequency center frequency point is about 2.5 times of high frequency.Dual-frequency array antenna of the present invention, sectional dimension is small, and windage is small,
Array structure is simple and consistency is good.
In dual-frequency array antenna of the present invention, be arranged respectively in the adjacent low-frequency vibrator 2 of any two there are two
High frequency oscillator 3, the spacing between two high frequency oscillators 3 being sheathed in low-frequency vibrator 2 can be adjusted according to actual needs.
Since the bore of low-frequency vibrator 2 is larger, in order to realize projection and high frequency vibrating of the oscillator arms 21 of low-frequency vibrator 2 on reflecting plate 1
The non-intersecting this purpose of projection of son 3 on reflecting plate 1, the oscillator arms 21 of low-frequency vibrator 2 can be designed to as far as possible to extension
It stretches, and two high frequency oscillators 3 nested in low-frequency vibrator 2 is designed to that spacing becomes smaller.
When the quantity of low-frequency vibrator 2 is two or more, high frequency oscillator also is provided between adjacent low-frequency vibrator 2
3.Specifically, a high frequency oscillator 3 is equipped between adjacent low-frequency vibrator 2, at this point, between two neighboring low-frequency vibrator 2
It 3 times away from the average headway between aerial array high frequency oscillator 3, is applicable to low-frequency vibrator (694-793MHz frequency range) and high
The coaxial nested groups battle array of frequency vibration (1700-2700MHz frequency range).
If setting between adjacent low-frequency vibrator 2, there are two high frequency oscillators 3, at this point, between two neighboring low-frequency vibrator 2
4 times away from the average headway between aerial array high frequency oscillator 3, the antenna that can be used for when 4 times of the long about high frequency of low frequency wave
Group battle array.
The symmetrical dipole of low-frequency vibrator 2 including two pairs of polarization orthogonals, each oscillator include oscillator arms 21 and oscillator balun 22,
Oscillator arms 21 intersect vertically with oscillator balun 22 and connect.
Oscillator balun 22 is fixed on reflecting plate 1, and oscillator balun 22 and the angle theta of reflecting plate 1 are not less than 60 °, such as Fig. 6
It is shown.Preferably, oscillator balun 22 and the angle theta of reflecting plate 1 are 90 °.It is designed using this kind, energy in low-frequency vibrator 2 can be made
Two high frequency oscillators 3 of enough nestings, also, influence of the oscillator balun 22 to high frequency oscillator 3 is smaller.
Embodiment two
As shown in Figure 7 and Figure 8, the embodiment of the present invention provides a kind of structure of dual-frequency array antenna, is mainly characterized by:
High frequency oscillator 3 and a high frequency oscillator 3 there are two being arranged respectively in the adjacent low-frequency vibrator 2 of any two.Remaining same embodiment
One.
Specifically, the quantity of low-frequency vibrator 2 is at least two.It is nested in one of low-frequency vibrator 2 that there are two high frequency vibratings
Son 3, and a high frequency oscillator 3 is then nested in another low-frequency vibrator 2 adjacent thereto.In order to realize the vibration of low-frequency vibrator 2
Sub- arm 21 can be set smaller in projection and the disjoint purpose of projection of the high frequency oscillator 3 on reflecting plate 1 on reflecting plate 1
The low-frequency vibrator 2 of bore, to avoid interfering the high frequency oscillator 3 on side as far as possible.
Wherein, a high frequency oscillator 3 is equipped between adjacent low-frequency vibrator 2, at this point, two neighboring low-frequency vibrator 2 is flat
2.5 times of equal average headway of the spacing between aerial array high frequency oscillator 3 can satisfy low-frequency vibrator (790-960MHz frequency
Section) with the coaxial nested groups battle array of high frequency oscillator (1700-2700MHz frequency range), the long about high frequency waves of other low frequency waves can also be met
A length of 2.5 times of group battle array.
If setting between adjacent low-frequency vibrator 2, there are two high frequency oscillator 3, the average headways of two neighboring low-frequency vibrator 2
3.5 times of average headway between aerial array high frequency oscillator 3 can meet when low frequency wave length is about 3.5 times of high-frequency wavelength
Antenna array, such as high frequency (2490-2690MHz frequency range) for the low frequency (694-793MHz frequency range) of LTE700 and for FDD
When group battle array, program group battle array can be used.
Dual-frequency array antenna of the present invention can be selected according to the frequency range of actual high frequency oscillator and low-frequency vibrator
Different group battle array scheme, to realize that low-frequency vibrator average headway is the different multiples of 2 times to 4 times of high frequency oscillator average headway
Relationship, to optimize the performance of antenna.
The above is only some embodiments of the invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (14)
- Multiple low-frequency vibrators 1. a kind of dual-frequency array antenna, including reflecting plate, and on the reflecting plate and multiple high Frequency vibration is sub, is nested with high frequency oscillator in the low-frequency vibrator, and high frequency oscillator is equipped between adjacent low-frequency vibrator, and feature exists In, in two adjacent low-frequency vibrators, nested in the low-frequency vibrator described at least one there are two the high frequency oscillators, and Two be nested in the low-frequency vibrator high frequency oscillator setting coaxial with low-frequency vibrator, according to the low-frequency vibrator With the frequency range of the high frequency oscillator, average headway of the average headway of the low-frequency vibrator between the high frequency oscillator is selected 2 times to 4 times.
- 2. dual-frequency array antenna according to claim 1, which is characterized in that in the adjacent low-frequency vibrator of any two High frequency oscillator and a high frequency oscillator there are two being arranged respectively.
- 3. dual-frequency array antenna according to claim 1, which is characterized in that in the adjacent low-frequency vibrator of any two High frequency oscillator there are two being arranged respectively.
- 4. dual-frequency array antenna according to claim 2 or 3, which is characterized in that the low-frequency vibrator includes two pairs of polarization Orthogonal symmetrical dipole, each symmetrical dipole include oscillator arms and oscillator balun, the oscillator arms and the oscillator balun Intersect vertically connection.
- 5. dual-frequency array antenna according to claim 4, which is characterized in that the oscillator balun is fixed on the reflecting plate On, and the angle of the oscillator balun and the reflecting plate is not less than 60 °.
- 6. dual-frequency array antenna according to claim 5, which is characterized in that the folder of the oscillator balun and the reflecting plate Angle is 90 °.
- 7. dual-frequency array antenna according to claim 3, which is characterized in that be equipped with one between the adjacent low-frequency vibrator A high frequency oscillator.
- 8. dual-frequency array antenna according to claim 3, which is characterized in that be equipped with two between the adjacent low-frequency vibrator A high frequency oscillator.
- 9. dual-frequency array antenna according to claim 7, which is characterized in that the spacing of the two neighboring low-frequency vibrator is 3 times of average headway between aerial array high frequency oscillator.
- 10. dual-frequency array antenna according to claim 8, which is characterized in that the two neighboring low-frequency vibrator is averaged 4 times of average headway of the spacing between aerial array high frequency oscillator.
- 11. dual-frequency array antenna according to claim 2, which is characterized in that be equipped between the adjacent low-frequency vibrator One high frequency oscillator.
- 12. dual-frequency array antenna according to claim 2, which is characterized in that be equipped between the adjacent low-frequency vibrator Two high frequency oscillators.
- 13. dual-frequency array antenna according to claim 11, which is characterized in that the two neighboring low-frequency vibrator is averaged 2.5 times of average headway of the spacing between aerial array high frequency oscillator.
- 14. dual-frequency array antenna according to claim 12, which is characterized in that the two neighboring low-frequency vibrator is averaged 3.5 times of average headway of the spacing between aerial array high frequency oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538612.5A CN105977652B (en) | 2016-07-07 | 2016-07-07 | Dual-frequency array antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538612.5A CN105977652B (en) | 2016-07-07 | 2016-07-07 | Dual-frequency array antenna |
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| CN105977652A CN105977652A (en) | 2016-09-28 |
| CN105977652B true CN105977652B (en) | 2019-05-31 |
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| CN201610538612.5A Active CN105977652B (en) | 2016-07-07 | 2016-07-07 | Dual-frequency array antenna |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112585818B (en) | 2018-07-31 | 2022-06-10 | 劲通开曼有限公司 | Split rhombus antenna elements for controlling azimuth patterns in different array configurations |
| CN111478022A (en) * | 2020-04-10 | 2020-07-31 | 重庆邮电大学 | Compact multi-frequency antenna array facing 5G base station |
| EP3972049A1 (en) * | 2020-09-18 | 2022-03-23 | Nokia Shanghai Bell Co., Ltd. | A dual-polarized antenna array |
| CN112736470B (en) * | 2020-12-01 | 2023-08-25 | 中信科移动通信技术股份有限公司 | Multi-frequency array antenna and base station |
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| EP1367672B1 (en) * | 2002-05-31 | 2006-06-28 | Radio Frequency Systems, Inc. | A single or dual polarized molded dipole antenna having integrated feed structure |
| JP2011010081A (en) * | 2009-06-26 | 2011-01-13 | Kddi Corp | Antenna device |
| CN102832455A (en) * | 2012-08-31 | 2012-12-19 | 华为技术有限公司 | Antenna array and antenna device |
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| CN205752558U (en) * | 2016-07-07 | 2016-11-30 | 京信通信技术(广州)有限公司 | Dual frequency array antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202737094U (en) * | 2011-12-13 | 2013-02-13 | 华南理工大学 | Wideband dual-frequency mobile communication base station antenna |
| CN102403572B (en) * | 2011-12-13 | 2013-09-25 | 华南理工大学 | Wideband double frequency mobile communication base station antenna |
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- 2016-07-07 CN CN201610538612.5A patent/CN105977652B/en active Active
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|---|---|---|---|---|
| EP1367672B1 (en) * | 2002-05-31 | 2006-06-28 | Radio Frequency Systems, Inc. | A single or dual polarized molded dipole antenna having integrated feed structure |
| JP2011010081A (en) * | 2009-06-26 | 2011-01-13 | Kddi Corp | Antenna device |
| CN202749516U (en) * | 2012-07-13 | 2013-02-20 | 广东通宇通讯股份有限公司 | Antenna |
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| CN105706297A (en) * | 2013-11-05 | 2016-06-22 | 株式会社Kmw | Multi-band, multi-polarized wireless communication antenna |
| CN205752558U (en) * | 2016-07-07 | 2016-11-30 | 京信通信技术(广州)有限公司 | Dual frequency array antenna |
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| CN105977652A (en) | 2016-09-28 |
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