CN107978838A - Antenna for base station and the coaxial mounting platform of low-and high-frequency oscillator - Google Patents
Antenna for base station and the coaxial mounting platform of low-and high-frequency oscillator Download PDFInfo
- Publication number
- CN107978838A CN107978838A CN201711183408.7A CN201711183408A CN107978838A CN 107978838 A CN107978838 A CN 107978838A CN 201711183408 A CN201711183408 A CN 201711183408A CN 107978838 A CN107978838 A CN 107978838A
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- Prior art keywords
- low
- frequency
- frequency oscillator
- mounting platform
- central part
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The present invention provides a kind of coaxial mounting platform of low-and high-frequency oscillator, it includes mounting base, and it is arranged on the isolation reflector plate in mounting base, the isolation reflector plate is in cross, it includes central part, and the extension extended by central part periphery four direction, the extension extend obliquely, there are angle between plane where plane where it and central part.The basic configuration of the coaxial mounting platform of low-and high-frequency oscillator of the present invention is in a cross thin slice being folded upward at, and low frequency cross polarization electromagnetic wave is converted to the main polarization electromagnetic wave of low frequency by the present invention, and at the same time the present invention realizes isolation to height frequency electromagnetic waves；The wave beam that high frequency oscillator gives off axial propagation distance after the reflection of cross extension reaches unanimity, it is thus achieved that the gain of bigger, have the conversion of lower frequency quadrature pattern and high-frequency gain lifting concurrently, it is both a high-frequency reflector, possess isolation low-frequency vibrator, improve the function of high frequency wave beam dispersion, while be a low frequency polarization separate sheet again, possessing improves low frequency cross polarization discrimination, lifts the function of low-frequency gain.
Description
【Technical field】
The present invention relates to a kind of communications field, more particularly, to one kind improve the coaxial installation cross polarization of low-and high-frequency oscillator and
The antenna for base station of gain.
【Background technology】
Crucial front end component of the antenna as wireless communication system, the good and bad network quality to operator of its performance play
Decisive role.In recent years, with the sharp increase of mobile subscriber's quantity, communication system is in continuous renewal and dilatation, to antenna
Design propose increasingly higher demands, antenna wideband, multifrequency are on the one hand required, to meet the communication of multiple systems at the same time
It is required that；On the other hand require to realize the quantity that shared by multiple systems reduces antenna, to reduce the interference between antenna and reduce cost.
The coaxial installation of low-and high-frequency oscillator, i.e.,：High frequency oscillator is installed on by special designing, radiator in frame structure and
Center has the low-and high-frequency nested groups battle array method on the central axis of the more low-frequency vibrator vacated.As shown in Figure 1, have become
The widely used means of multifrequency antenna size reduction, lifting gain at present.Fig. 1 is that current micro base station antenna is widely used
The schematic diagram of low-and high-frequency oscillator 101,102 coaxial groups of battle arrays：Wherein low-frequency vibrator 101 is designed to that centre is vacated, by surrounding metal
The frame structure that bar or metal plate frame are radiated, and high frequency oscillator 102 is installed on low-frequency vibrator after being raised by mounting base 103
Thus axis line position, coaxial group of battle array are gained the name.Although saving space, an outstanding problem of coaxial type array is high frequency oscillator
The serious interactive interference between low-frequency vibrator：On the one hand, the high frequency oscillator above central axis changes lower section low-frequency vibrator
Polarization mode, cause low frequency positive polarization to shift with negative polarization phase center, thus cause cross polar component increase and
Gain declines；On the other hand, frequency electromagnetic waves cause antenna pattern to dissipate after low-frequency vibrator scattering, show as half work(
With frequency significantly fluctuation occurs for rate angle, and high frequency oscillator is scattered be subject to arround and resonance is disturbed, and serious color occurs for antenna pattern
Dissipate, cause at some frequencies that half-power angle is seriously bigger than normal, gain suddenly declines, and wave beam deformation is serious, half work(at other frequencies
Rate angle is then serious less than normal, it is impossible to meets requirement for signal coverage.
Current technology means can only individually solve low-frequency vibrator cross polarization deterioration, or high frequency oscillator half-power angle hair
Dissipate, can not but solve the problems, such as interactive interference caused by the above-mentioned coaxial installation of low-and high-frequency oscillator at the same time.Such as：Reduce low frequency intersection
Polarization components strengthen the polarization isolation of low-frequency vibrator, so that improve cross polarization discrimination, can be in vertical low-frequency vibrator 201
Central axis installation polarization separation piece 202, as shown in Figures 2 and 3, so that in main polarization component and cross polar component phase
The heart reaches unanimity.Polarization isolation piece 202 is one piece of criss-cross sheet metal, and spider is towards with positive and negative polarization angular separation
45 °, incide induced electricity circulation of the cross polar component part for polarization isolation on piece by flowing through cross searching and turn to master
Polarization components, another part are offset by resonating electric field.In order to improve polarization isolation effect, as shown in figure 3, cross thin slice is on side
Multiple notches 203 are cut open at edge, so as to extending current path, induce the generation of more multi-resonant.
And to reduce frequency electromagnetic waves and be scattered on low-frequency vibrator surface, as shown in figure 4, current solution be
One reflecting plate 302 of insertion among the high frequency oscillator 301 and low-frequency vibrator of coaxial placement, is reflected by being installed below high frequency oscillator
Device is so that low-and high-frequency oscillator be kept apart in vertical direction.Scattered so as to reduce frequency electromagnetic waves on low-frequency vibrator surface.
However, low frequency polarization separate sheet and high frequency reflecting plate at the same time applied to coaxial installation low-and high-frequency oscillator when but due to
Between the two complicated electromagnetic action and be difficult to play effectiveness.Low-frequency vibrator hyper polarization spacer and high frequency oscillator add reflector this
Two kinds of technological means are conflicting：Low-frequency vibrator hyper polarization spacer easily induces high-frequency resonant, makes high frequency problem worse；
And high frequency oscillator adds reflector then to increase low frequency scattering, so that low frequency polarization problem makes the matter worse.
【The content of the invention】
It is an object of the invention to provide one kind can solve low-frequency vibrator cross polarization deterioration, high frequency oscillator half-power angle
Diverging, while the antenna for base station and the coaxial peace of low-and high-frequency oscillator of interactive interference caused by solving the problems, such as the coaxial installation of low-and high-frequency oscillator
Assembling platform.
To realize the object of the invention, there is provided following technical scheme：
The present invention provides a kind of coaxial mounting platform of low-and high-frequency oscillator, it includes mounting base, and is arranged in mounting base
Isolation reflector plate, the isolation reflector plate is in cross, it includes central part, and by central part periphery four direction
The extension extended, the extension extend obliquely, and there are angle between plane where plane where it and central part.
The basic configuration of the coaxial mounting platform of low-and high-frequency oscillator of the present invention is in a cross thin slice being folded upward at, and low frequency is handed over
Fork polarized electromagnetic wave is converted to the main polarization electromagnetic wave of low frequency by the present invention, and at the same time the present invention realizes height frequency electromagnetic waves
Isolation；Further, the wave beam that high frequency oscillator gives off axial propagation distance after the reflection of cross extension reaches unanimity, by
This realizes the gain of bigger.The coaxial mounting platform of low-and high-frequency oscillator of the present invention has the conversion of lower frequency quadrature pattern concurrently and high frequency benefit carries
Rise, which is both a high-frequency reflector, possesses isolation low-frequency vibrator, improves the function of high frequency wave beam dispersion, at the same time
It is a low frequency polarization separate sheet again, possessing improves low frequency cross polarization discrimination, lifts the function of low-frequency gain.
Preferably, the extension extending direction and oscillator polarization direction angle are 45 °.The electromagnetism that low-frequency vibrator gives off
When ripple incides the spider reflecting surface, the main polarization sensing that cross searching is flowed through with cross polar component phase center
Current synchronization, thus low frequency cross polarization are improved, and gain is also lifted.
Preferably, the angle value range between plane where the extension and central part place plane is at 0 °~90 °.
Preferably, the extension extends obliquely, the angle between plane where plane where extension and central part
For 30 °.This angle is to optimize by electromagnetic field simulation software as a result, be allowed to both enhance the reflection to frequency electromagnetic waves,
Reduction scatters in high frequency vibrating sublist face, and is unlikely to make scattering section excessive so as to influence low frequency cross polarization.
Preferably, the extension is in convex shape structure, including is directly connected to the base portion of the central part and by base portion
The protuberance that outer ledge extends out.On the one hand enhancing low-frequency resonant, on the other hand inhibits the generation of high-frequency resonant, so that
Avoid the negative effect to high frequency oscillator.
Preferably, the central part is square.
Preferably, length of side L=60mm ± 5mm of the central part.
Preferably, height H=18mm ± 5mm that the extension is extended out by central part.
Preferably, width L1=50mm ± 5mm of the protuberance, the height H1 that the protuberance is extended out by base portion
=5mm ± 1mm.
The present invention also provides a kind of antenna for base station, it includes the high frequency oscillator of coaxial setting and low-frequency vibrator, and as above
The coaxial mounting platform of low-and high-frequency oscillator, the coaxial mounting platform of low-and high-frequency oscillator are arranged in the low-frequency vibrator,
The high frequency oscillator is arranged on the coaxial mounting platform of low-and high-frequency oscillator.
The present invention solves the serious interactive interference occurred during the coaxial installation of antenna for base station low-and high-frequency oscillator, especially suitable for
698~960MHz low frequency pintongs oscillators installation situation coaxial with 1710~2690MHz high frequency oscillators, for improve antenna gain,
Overcome cross polarization that there is considerable value；In addition, the configuration of the present invention is simple, can be manufactured, cost by basic sheet metal process
It is cheap, it is suitable for mass production.
The prior art is contrasted, the present invention has the following advantages：
The basic configuration of the coaxial mounting platform of low-and high-frequency oscillator of the present invention is in a cross thin slice being folded upward at, cross
Extension is folded upward at 30 °, so as to reduce the influence from the electric current of low-frequency vibrator surface scattering around；Further, high frequency
The wave beam that oscillator gives off axial propagation distance after the reflection of cross extension reaches unanimity, it is thus achieved that the gain of bigger.
The coaxial mounting platform of low-and high-frequency oscillator of the present invention has the conversion of lower frequency quadrature pattern and high frequency benefit lifting concurrently, which is both one
A high-frequency reflector, possesses isolation low-frequency vibrator, improves the function of high frequency wave beam dispersion, while be a low frequency polarization separation again
Piece, possessing improves low frequency cross polarization discrimination, lifts the function of low-frequency gain.
Two kinds of functions of low-frequency electromagnetic wave polarization mode separator and frequency electromagnetic waves reflector are integrated into by the present invention first
One component, had both given full play to above-mentioned function, turn avoid interactive interference between the two, solved the coaxial peace of low-and high-frequency oscillator
Fill problem；The coaxial mounting platform of low-and high-frequency oscillator of the present invention is easily fabricated, of low cost, and easily installation, is adapted in antenna for base station
Middle batch deployment.
【Brief description of the drawings】
Fig. 1 is the coaxial installation nested groups battle array schematic diagram of prior art low-and high-frequency oscillator；
Fig. 2 is the schematic diagram that low frequency polarization spacer is set in prior art low-frequency vibrator；
Fig. 3 is the polarization direction schematic diagram of prior art low frequency polarization spacer；
Fig. 4 is the schematic diagram that the prior art sets reflector below high frequency oscillator；
Fig. 5 is the schematic diagram that the coaxial mounting platform of low-and high-frequency oscillator of the present invention is applied to antenna for base station；
Fig. 6 is the structure diagram of the coaxial mounting platform of low-and high-frequency oscillator of the present invention；
Fig. 7 is the expanded view of the reflection spacer of the coaxial mounting platform of low-and high-frequency oscillator of the present invention；
Fig. 8 is the side view of the reflection spacer of the coaxial mounting platform of low-and high-frequency oscillator of the present invention.
【Embodiment】
Refer to Fig. 5~8, antenna for base station of the present invention includes the coaxial high frequency oscillator 411 being arranged on reflecting plate 500 and low
Frequency vibration 412, and the coaxial mounting platform of low-and high-frequency oscillator, the coaxial mounting platform of low-and high-frequency oscillator are arranged on the low frequency
In oscillator 412, the high frequency oscillator 411 is arranged on the coaxial mounting platform of low-and high-frequency oscillator.
The coaxial mounting platform embodiment of low-and high-frequency oscillator of the present invention includes mounting base 420, and is arranged in mounting base
Isolate reflector plate 430, the isolation reflector plate is in cross, it includes central part 431, and by Thursday outside the central part
The extension 432 that direction is extended, the extension 432 extend obliquely, plane where it and 431 place plane of central part it
Between there are angle.
432 extending direction of extension and oscillator polarization direction angle are 45 °.The electromagnetism that low-frequency vibrator 412 gives off
When ripple incides the spider reflecting surface, the main polarization sensing that cross searching is flowed through with cross polar component phase center
Current synchronization, thus low frequency cross polarization are improved, and gain is also lifted.
The extension 432 extends obliquely, between the 432 place plane of extension and 431 place plane of central part
Angle value range at 0 °~90 °.In the present embodiment, the central part 431 is square, the length of side of the central part 431
L, the height H that the extension 432 is extended out by central part, the extension 432 are in convex shape structure, including connection center
The base portion 433 in portion 431 and the protuberance 434 extended by 433 outer ledge of base portion, on the one hand strengthen low-frequency resonant, another
Aspect inhibits the generation of high-frequency resonant, so as to avoid the negative effect to high frequency oscillator.The width of the protuberance 434
L1, the height H1 that the protuberance 434 is extended out by base portion 433.
For most common 690~960MHz low-frequency vibrators 412 and 1710~2690MHz high frequencies, 411 coaxial groups of battle arrays of oscillator
Using each parameter value is as follows in figure：L=60mm, H=18mm, L1=50mm, H1=5mm.Cross isolation reflector plate 430
Extension 432 is folded upward at angle as 30 °, this angle is to optimize by electromagnetic field simulation software as a result, being allowed to both strengthen
Reflection to frequency electromagnetic waves, reduces and is scattered in high frequency vibrating sublist face, and is unlikely to make scattering section excessive so as to shadow
Ring low frequency cross polarization.Further, the wave beam that high frequency oscillator gives off axial propagation distance after extension reflects tends to one
Cause, it is thus achieved that the gain of bigger.
The invention discloses a kind of coaxial installation of low-and high-frequency oscillator for having the conversion of lower frequency quadrature pattern and high frequency benefit lifting concurrently
Platform, the mounting platform are both a high-frequency reflector, possess isolation low-frequency vibrator, improve the function of high frequency wave beam dispersion, together
When be low frequency polarization separate sheet again, possessing improves low frequency cross polarization discrimination, lifts the function of low-frequency gain.
Basic configuration is in a cross thin slice being folded upward at, and extension is respectively directed to 0 ° and 90 ° directions of horizontal plane, with shaking
Muon polarization angular separation is 45 °.It is main polarization with handing over when the electromagnetic wave incident that low-frequency vibrator gives off is to the extension reflecting surface
The phase center of fork polarization components is flowed through the sensing current synchronization of cross searching, and thus low frequency cross polarization is improved, and is increased
Benefit is also lifted.
Present invention preserves spider basic configuration, thus still support polarization mode conversion, but eliminate fluting and
Instead marginal stretch, the advantage of doing so is that：On the one hand enhancing low-frequency resonant, on the other hand inhibits the hair of high-frequency resonant
It is raw, so as to avoid the negative effect to high frequency oscillator.
The present invention solves the serious interactive interference occurred during the coaxial installation of antenna for base station low-and high-frequency oscillator, especially suitable for
698~960MHz low frequency pintongs oscillators installation situation coaxial with 1710~2690MHz high frequency oscillators, for improve antenna gain,
Overcome cross polarization that there is considerable value；In addition, the configuration of the present invention is simple, can be manufactured, cost by basic sheet metal process
It is cheap, it is suitable for mass production.
The central part of present invention isolation reflector plate can also be other shapes, such as rectangle, or polygon, and the present invention is basic
Pattern is that the extension being folded upward at is equipped with central part periphery.The design that any modification implemented herein on basis obtains
Achievement should all include the scope of this patent.
The foregoing is merely presently preferred embodiments of the present invention, protection scope of the present invention is not limited thereto, any to be based on
Equivalent transformation in technical solution of the present invention is all fallen within the protection scope of the present invention.
Claims (10)
1. a kind of coaxial mounting platform of low-and high-frequency oscillator, it is characterised in that it includes mounting base, and is arranged in mounting base
Isolate reflector plate, the isolation reflector plate is in cross, it includes central part, and is prolonged by central part periphery four direction
The extension of stretching, the extension extend obliquely, and there are angle between plane where plane where it and central part.
2. the coaxial mounting platform of low-and high-frequency oscillator as claimed in claim 1, it is characterised in that the extension extending direction with
Oscillator polarization direction angle is 45 °.
3. the coaxial mounting platform of low-and high-frequency oscillator as claimed in claim 1, it is characterised in that plane where the extension with
Angle value range between plane where central part is at 0 °~90 °.
4. the coaxial mounting platform of low-and high-frequency oscillator as claimed in claim 3, it is characterised in that plane where the extension with
Angle between plane where central part is 30 °.
5. the coaxial mounting platform of low-and high-frequency oscillator as claimed in claim 1, it is characterised in that the extension is in convex shape knot
Structure, including it is directly connected to the base portion of the central part and the protuberance extended out by base portion outer ledge.
6. the coaxial mounting platform of low-and high-frequency oscillator as claimed in claim 3, it is characterised in that the central part is square.
7. the coaxial mounting platform of low-and high-frequency oscillator as claimed in claim 1, it is characterised in that the length of side L=of the central part
60mm±5mm。
8. the coaxial mounting platform of low-and high-frequency oscillator as claimed in claim 7, it is characterised in that the extension is prolonged by central part
Stretch out the height H=18mm ± 5mm gone.
9. the coaxial mounting platform of low-and high-frequency oscillator as claimed in claim 8, it is characterised in that the width L1=of the protuberance
50mm ± 5mm, height H1=5mm ± 1mm that the protuberance is extended out by base portion.
A kind of 10. antenna for base station, it is characterised in that it includes the high frequency oscillator of coaxial setting and low-frequency vibrator, and such as right
It is required that 1~9 coaxial mounting platform of any one of them low-and high-frequency oscillator, the coaxial mounting platform of low-and high-frequency oscillator are arranged on institute
State in low-frequency vibrator, the high frequency oscillator is arranged on the coaxial mounting platform of low-and high-frequency oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183408.7A CN107978838B (en) | 2017-11-23 | 2017-11-23 | Base station antenna and high-low frequency oscillator coaxial mounting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183408.7A CN107978838B (en) | 2017-11-23 | 2017-11-23 | Base station antenna and high-low frequency oscillator coaxial mounting platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107978838A true CN107978838A (en) | 2018-05-01 |
| CN107978838B CN107978838B (en) | 2020-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711183408.7A Active CN107978838B (en) | 2017-11-23 | 2017-11-23 | Base station antenna and high-low frequency oscillator coaxial mounting platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107978838B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6028563A (en) * | 1997-07-03 | 2000-02-22 | Alcatel | Dual polarized cross bow tie dipole antenna having integrated airline feed |
| JP2005318438A (en) * | 2004-04-30 | 2005-11-10 | Harada Ind Co Ltd | Antenna device |
| CN201278368Y (en) * | 2008-07-23 | 2009-07-22 | 摩比天线技术（深圳）有限公司 | Wide band coaxial bi-frequency bi-polarized electric tuning antenna |
| CN201430217Y (en) * | 2009-05-16 | 2010-03-24 | 广东通宇通讯设备有限公司 | Coaxial dual-frequency bipolarization base station antenna |
| CN105609921A (en) * | 2015-11-17 | 2016-05-25 | 西安电子科技大学 | Small high and low frequency coaxial dual-polarized base station antenna unit |
-
2017
- 2017-11-23 CN CN201711183408.7A patent/CN107978838B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6028563A (en) * | 1997-07-03 | 2000-02-22 | Alcatel | Dual polarized cross bow tie dipole antenna having integrated airline feed |
| JP2005318438A (en) * | 2004-04-30 | 2005-11-10 | Harada Ind Co Ltd | Antenna device |
| CN201278368Y (en) * | 2008-07-23 | 2009-07-22 | 摩比天线技术（深圳）有限公司 | Wide band coaxial bi-frequency bi-polarized electric tuning antenna |
| CN201430217Y (en) * | 2009-05-16 | 2010-03-24 | 广东通宇通讯设备有限公司 | Coaxial dual-frequency bipolarization base station antenna |
| CN105609921A (en) * | 2015-11-17 | 2016-05-25 | 西安电子科技大学 | Small high and low frequency coaxial dual-polarized base station antenna unit |
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| Publication number | Publication date |
|---|---|
| CN107978838B (en) | 2020-02-11 |
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