CN106848530A - Multifrequency dual-polarization omnidirectional antenna - Google Patents
Multifrequency dual-polarization omnidirectional antenna Download PDFInfo
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- CN106848530A CN106848530A CN201710200386.4A CN201710200386A CN106848530A CN 106848530 A CN106848530 A CN 106848530A CN 201710200386 A CN201710200386 A CN 201710200386A CN 106848530 A CN106848530 A CN 106848530A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—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
- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- 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
- H01Q19/18—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 having two or more spaced reflecting surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0075—Stripline fed arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
- H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention discloses multifrequency dual-polarization omnidirectional antenna, it is related to dual-polarization omnidirectional antenna technical field, including upper and lower two micro-strip antenna arrays, unsymmetrical double-cone antenna, multiplexer, side feed structure and antenna house, upper and lower micro-strip antenna array is parallel to each other, it is respectively arranged at unsymmetrical double-cone aerial head and middle part, multiplexer is arranged at unsymmetrical double-cone antenna bottom inner side, side feed structure is arranged at antenna entirety side, and two output ports of upper and lower micro-strip antenna array distributing point and multiplexer are connected respectively.Multifrequency dual-polarization omnidirectional antenna of the present invention covers 2/3/4G and WLAN, Wi Fi working frequency range, with multifrequency vertical-horizontal bipolar omni-directional radiation function.Upper micro-strip antenna array is placed in the present invention top of unsymmetrical double-cone antenna, constitute orthogonally located, unsymmetrical double-cone antenna is placed in lower micro-strip antenna array center, constitute punching orthogonally located, the textural association method can significantly improve vertical, horizontal polarization interport isolation in full frequency band, widen Antenna Operation bandwidth.
Description
Technical field
The present invention relates to dual-polarization omnidirectional antenna technical field.
Technical background
The horizontal polarization pattern of conventional dual polarization omnidirectional antenna is only capable of being operated in single-frequency scope, it is impossible to while covering 2/
3/4G and WLAN, Wi-Fi working frequency range, are unsatisfactory for double frequency MIMO technology requirement.Multifrequency dual-polarization omnidirectional antenna is limited due to size
Make and realize complex structure, be easily caused interport isolation and directional diagram out-of-roundness and be deteriorated, extreme influence antenna with frequency transmitting-receiving and
Signal omnidirectional covers.
The patent of Patent No. CN201420539869.9, it includes horizontally-polarized antenna, vibrator body and antenna house, institute
Stating horizontally-polarized antenna includes substrate, and the micro-strip folded dipole for being provided with more than three units is evenly distributed on the top surface of substrate；
Micro-strip folded dipole is made up of director dipole and folded dipole, and director dipole and folded dipole are arranged along the radial direction ecto-entad of substrate
Cloth；Folded dipole respectively connected one end of the first feeder line and one end of the second feeder line；During the center of the substrate offers
Heart power feed hole, the uniform power feed hole for offering more than three in outside in apex drive hole；Second feeder line of more than three it is another
End is all connected with apex drive hole.But the patent is not carried out multifrequency dual polarization function, it is impossible to meet the MIMO under multiband
Antenna applications demand, while not solving the technical problem of interport isolation difference simultaneously.
The patent of Patent No. CN201010504764.6, it is total to by using horizontally-polarized antenna with vertical polarized antenna
Axle is set, and horizontally-polarized antenna is raised one's arm by two of folded dipole and is attached respectively to upper and lower two surfaces of lamina affixad, and described two
Individual raising one's arm connects the structure of feeder line inner wire and feeder line outer conductor respectively so that dual polarized antenna of the invention has work wider
Make frequency bandwidth, meanwhile, the Dual-polarization ceiling antenna that the present invention is provided has good polarization isolation effect and covering balance,
The performance of mimo antenna can be effectively played in LTE and wlan system, and can effectively applied in 2G, 3G network,
Improve message transmission rate.But the patent is not carried out multifrequency dual polarization function, it is impossible to while the MIMO under meeting multiband
Antenna applications demand.
The content of the invention
The technical problems to be solved by the invention are directed to above-mentioned the deficiencies in the prior art, and it is overall high to provide a kind of reduction
Degree, the multifrequency dual-polarization omnidirectional antenna special with directional diagram omnidirectional radiation of Enhanced Radiation Reduced Blast gain.The multifrequency bipolar omni-directional day
Line realizes that 698MHz-960MHz and 1710MHz-2700MHz is low, the vertical-horizontal bipolar omni-directional radiation in full frequency band high,
Possesses the bipolar omni-directional radiation function in 2/3/4G, WLAN and Wi-Fi frequency range.Many vertical-horizontal polarization ports are solved simultaneously
Between isolation is poor, antenna pattern out-of-roundness is poor, antenna structure is too fat to move, install the problem that the existing scheme such as complexity is present.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of multifrequency dual-polarization omnidirectional antenna, it is characterised in that including：Upper micro-strip antenna array, lower micro-strip antenna array,
Unsymmetrical double-cone antenna, multiplexer, side feed structure and antenna house；The unsymmetrical double-cone antenna includes upper circular cone, middle part
Coaxial cable and lower circular cone, it is vertically polarized omnidirectional that the middle part coaxial cable connects and composes full frequency band with upper circular cone and lower circular cone
Antenna；The upper micro-strip antenna array and lower micro-strip antenna array are parallel to each other, and the upper micro-strip antenna array is arranged at described
On upper circular cone, the lower micro-strip antenna array is arranged on the lower circular cone, and the multiplexer is arranged at lower conical base inner side,
The side feed structure is arranged at antenna entirety side, and the side feed structure is by upper micro-strip antenna array and lower micro-strip day
Two output ports of the distributing point of linear array and multiplexer are connected.
The upper circular cone is a kind of hollow structure, and into cylindrical shape, bottom is in an inverted cone, and bottom centre is provided with through hole on top；
The lower circular cone is also hollow structure, tapered, and central upper portion is provided with through hole, and lower conical surface is provided with rotationally symmetrical gap.
The asymmetry of the unsymmetrical double-cone antenna is embodied in the shape of circular cone and lower circular cone, height, radius, cone and inclines
Angle aspect, upper circular cone has any one to differ with lower circular cone at above-mentioned aspect, you can thinks that upper and lower circular cone is asymmetric, belongs to non-
Symmetrical biconical antenna category.
The unsymmetrical double-cone antenna passes through lower micro-strip antenna array center, unsymmetrical double-cone antenna axis and lower micro-strip day
Linear array is mutually perpendicular to, and constitutes punching quadrature and places；The upper micro-strip antenna array is positioned over the spacing of epiconus one
From unsymmetrical double-cone antenna axis are mutually perpendicular to upper micro-strip antenna array.
The side feed structure includes first bending coaxial cable and second bending coaxial cable, described first
The center of circle distributing point of the upper micro-strip antenna array of bending coaxial cable one end connection, the upper micro-strip antenna array surface spoke of other end laminating
The supreme microstrip antenna array column border of unit interstices is penetrated, and tilts to lower microstrip antenna array column border；Second bending is coaxial
The eccentric distributing point of the lower micro-strip antenna array of cable one end connection, the lower micro-strip antenna array surface emissivity unit seam of other end laminating
To lower microstrip antenna array column border, herein, first bending thin coaxial cable is tightly pasted gap with second bending thin coaxial cable
Conical base edge under vertical wirings to unsymmetrical double-cone antenna is closed, it is defeated with the first output port of multiplexer port second respectively
Exit port is connected.
The upper microstrip antenna array is classified as many array element circular array, including metal radiation layer, circular media layer and metal
Transmission network network layers, the metal radiation layer and the metal transmission network network layers are located at circular media layer both sides up and down respectively,
Constitute high band horizontally polarized omnidirectional antenna.
The metal transmission network network layers of the upper micro-strip antenna array are center of rotational symmetry feed structure, including outside is multiple
Hook microstrip line, a plurality of bending microstrip line and the center of circle distributing point in inner side, above-mentioned hook microstrip line is with the bending microstrip line from beginning to end
Be connected, a plurality of bending microstrip line is connected to the center of circle distributing point, the metal radiation layer include multiple radiating elements and
Circular metal ground, above-mentioned radiating element is connected along the uniform arrangement of annular and with circular metal.
The lower microstrip antenna array is classified as many array element annular arrays, including metal radiation layer, the feedback of annular dielectric layer, metal
Power network network layers, the metal radiation layer and the metal transmission network network layers are located at the upper and lower both sides of annular dielectric layer respectively,
Constitute low-frequency range horizontally polarized omnidirectional antenna.
The metal transmission network network layers of the lower micro-strip antenna array are asymmetric eccentric feed structure, including outside is multiple hooks
Shape microstrip line, a plurality of arc-shaped micro-strip line in inner side and eccentric distributing point, above-mentioned hook microstrip line and the arc-shaped micro-strip line head and the tail phase
Even, a plurality of arc-shaped micro-strip line is connected to the eccentric feed；The metal radiation layer includes multiple radiating elements and annulus
Shape metal ground, above-mentioned radiating element is connected along the uniform arrangement of annular and with circular ring metal.
Any one radiating element gap of the upper micro-strip antenna array is single with any one radiation of lower micro-strip antenna array
First gap overlaps and aligns.
The multiplexer includes an input port and two output ports, and the multiplexer radius is not more than asymmetric double
Cone antenna maximum internal radius.
Multifrequency dual-polarization omnidirectional antenna of the present invention can realize vertically polarized omnidirectional spoke in full frequency band by unsymmetrical double-cone
Penetrate, the rotational symmetry structure of unsymmetrical double-cone antenna ensure that directional diagram omnidirectional radiation characteristic.Upper and lower circular cone asymmetric property exists
On the premise of ensuring bandwidth of operation, whole height, Enhanced Radiation Reduced Blast gain are reduced to greatest extent.Microstrip antenna array on upper epiconus
Row form capacitive load with unsymmetrical double-cone, improve unsymmetrical double-cone band standing internal wave.Lower conical surface is provided with rotationally symmetrical gap,
The tangential electric current of lower conical surface can be blocked, with band standing internal wave is improved, cross polarization radiations is reduced, reduced mutual with horizontal polarization
The ability of coupling, while multiplexer can be placed in into lower conical base inner side, reduces electromagnetic radiation and brings signal spuious.Actual measurement table
Bright, asymmetric double wimble structure overall dimensions 103mm (height) * 300mm (maximum gauge), band standing internal wave is less than 1.5, directional diagram
Out-of-roundness is less than 3.5dB, and gain is more than 2dBi.The unsymmetrical double-cone antenna can be made up of metal stamping, simple structure, low cost
It is honest and clean, easy for installation.
Multifrequency dual-polarization omnidirectional antenna of the present invention can realize horizontal polarization in full frequency band by upper and lower micro-strip antenna array
Omnidirectional radiation, upper micro-strip antenna array works in high band, and lower micro-strip antenna array works in low-frequency range.Upper micro-strip antenna array
It is made up of many array elements circle battle array, radiating element and feeding network circular metal ground altogether, using aperture-coupled mode, are ensureing work
Make under the premise of bandwidth, at utmost reduce antenna size, it is ensured that the horizontally polarized omnidirectional radiation characteristic of high frequency, while using circular gold
Possession reflection characteristic Enhanced Radiation Reduced Blast gain.Upper micro-strip antenna array is positioned over unsymmetrical double-cone antenna top using plastic stent,
Upper micro-strip antenna array is vertical with unsymmetrical double-cone antenna axis so that upper micro-strip antenna array surface current and unsymmetrical double-cone
Antenna surface electric current is orthogonal, reduces electromagnetic coupled.Lower micro-strip antenna array is made up of polynary round battle array, radiating element and feeding network
Concyclic endless metal ground, using aperture-coupled mode, can at utmost reduce antenna chi on the premise of work is ensured
It is very little.Lower micro-strip antenna array uses cirque structure, can be positioned over unsymmetrical double-cone antenna middle part, orthogonally located into punching,
So that lower micro-strip antenna array surface current is orthogonal with unsymmetrical double-cone antenna surface electric current, electromagnetic coupled is reduced, simplify antenna
Structure, reduces antenna volume.Reflecting plate is formed using circular ring metal ground and lower circular cone, it is ensured that directional diagram is in work simultaneously
Omnidirectional radiation characteristic and gain on face.Measured result is shown in Table 1, the upper and lower micro-strip antenna array and horizontally polarized omnidirectional antenna with
Vertical depolarized omnidirectional antenna textural association method reduces electromagnetic coupled, not only reduces horizontal vertical interport isolation interior with band
Standing wave, also assures omnidirectional radiation characteristic and gain.Foregoing multifrequency dual-polarization omnidirectional antenna is solved because size is limited and is realized
Complex structure, is easily caused the problem that interport isolation and directional diagram out-of-roundness are deteriorated.
Table micro-strip antenna array measured data about 1
| Frequency range | Size (diameter) | Band standing internal wave | Out-of-roundness | Gain | Interport isolation |
| Low frequency | 250mm | ＜ 1.8 | ＜ 3dB | ＞ 2dBi | ＜ -24dB |
| High frequency | 130mm | ＜ 1.5 | ＜ 3dB | ＞ 4dBi | ＜ -30dB |
Multifrequency dual-polarization omnidirectional antenna of the present invention can realize low-and high-frequency level pole by side feed structure and multiplexer
Change signal synthesis.Side feed structure includes two bending thin coaxial cables, and two bending thin coaxial cables are connected up and down respectively
The distributing point of micro-strip antenna array, connects up along particular course, perpendicular to lower conical base edge, by lower conical base edge with
Two output ports connection of the multiplexer being placed in inside lower circular cone.The side feed structure can ensure upper and lower microstrip antenna
While array-fed, the influence to upper and lower micro-strip antenna array surface current is reduced, and reduce due to side feed structure
Asymmetry, the problem that the directional diagram out-of-roundness brought is deteriorated.Multiplexer is placed in lower conical base inner side, can both reduce
The spuious guarantee port third order intermodulation of port current that electromagnetic radiation brings, while being also easy to install, it is ensured that homogeneity of product.Antenna
Overall measured result is shown in Table 2, and side feed structure and multiplexer are placed in lower conical base inner side to upper and lower microstrip antenna array
Row and unsymmetrical double-cone antenna performance do not influence substantially, it is ensured that the overall indices of antenna.
Therefore, multifrequency dual-polarization omnidirectional antenna of the present invention have that interport isolation is low, directional diagram out-of-roundness is good, band standing internal wave
The advantage that excellent and size is small, low cost is easily installed.
The antenna of table 2 entirety measured data
| Polarization mode | Band standing internal wave | Out-of-roundness | Gain | Isolation | Third order intermodulation |
| Vertically | ＜ 1.6 | ＜ 4dB | ＞ 2dBi | ＜ -24dB | ＜ -153dBc |
| Level | ＜ 1.7 | ＜ 5dB | ＞ 4dBi | ＜ -- 30dB | ＜ -153dBc |
Multifrequency dual-polarization omnidirectional antenna of the present invention also has following technique effect：
Upper micro-strip antenna array realizes aperture-coupled using multiple radiating elements and the hook microstrip line, increases
High frequency antenna bandwidth of operation.
Upper micro-strip antenna array is connected using multiple radiating elements with the circular metal, and spy is reflected by metal
Property, it is ensured that the horizontally polarized omnidirectional radiation characteristic of directional diagram high frequency and gain.Thus, upper micro-strip antenna array has structure letter
Singly, it is easily installed, directional diagram out-of-roundness is good, high gain advantage.
Lower micro-strip antenna array realizes aperture-coupled using multiple radiating elements and the hook microstrip line, increases
Low-frequency antenna bandwidth of operation.
Lower micro-strip antenna array is connected using multiple radiating elements with the circular metal, and spy is reflected by metal
Property, it is ensured that the horizontally polarized omnidirectional radiation characteristic of directional diagram low frequency and gain.Thus, lower micro-strip antenna array has structure letter
Singly, it is easily installed, directional diagram out-of-roundness is good, high gain advantage.
Circular cone and lower circular cone on unsymmetrical double-cone antenna envelope, upper circular cone by metal stamping formed hollow structure, top into
Cylindrical shape, bottom is in an inverted cone, and bottom centre is provided with through hole, lower circular cone by metal stamping formed hollow structure, tapered, top
Center is provided with through hole, and surface is provided with rotationally symmetrical gap, middle part inner conductor by lower epiconus central through hole with
Upper circular cone lower central circular hole, and the welding of upper circular cone, middle part coaxial cable outer conductor and lower circular cone are welded, unsymmetrical double-cone antenna
It is positioned in antenna house circular base plate.The rotational symmetry structure of unsymmetrical double-cone antenna ensure that directional diagram full frequency band vertical polarization
Omnidirectional radiation characteristic.After unsymmetrical double-cone antenna, vertical polarized antenna overall dimensions 103mm (height) * 300mm are (maximum
Diameter), directional diagram out-of-roundness is less than 3.5dB, and gain is more than 2dBi.Thus, unsymmetrical double-cone antenna is ensuring bandwidth of operation
Under the premise of, whole height can be to greatest extent reduced, Enhanced Radiation Reduced Blast gain simultaneously ensures directional diagram out-of-roundness.
Conical surface is provided with rotationally symmetrical gap under unsymmetrical double-cone antenna, can block the tangential electric current of lower conical surface,
With band standing internal wave is improved, cross polarization radiations are reduced, reduce the ability with horizontal polarization mutual coupling.Using rotationally symmetrical gap
Afterwards, band standing internal wave in vertical polarization port is less than 1.5.Thus, unsymmetrical double-cone have simple structure, it is with low cost, be easily installed,
With the good advantage of standing internal wave.
Upper microstrip antenna array is classified as circular configuration, using plastic stent be positioned on unsymmetrical double-cone antenna circular cone it
On, upper micro-strip antenna array forms capacitive load with unsymmetrical double-cone, improves unsymmetrical double-cone band standing internal wave.Upper microstrip antenna array
Row are vertical with unsymmetrical double-cone antenna axis so that upper micro-strip antenna array surface current and unsymmetrical double-cone antenna surface electric current
It is orthogonal, electromagnetic coupled is reduced, improve interport isolation.After upper micro-strip antenna array laying method, frequency vertical horizontal ends
Mouth isolation is less than -30dB.
Lower microstrip antenna array is classified as cirque structure, and unsymmetrical double-cone antenna middle part is positioned over using plastic stent, non-right
Claim biconical antenna to pass through lower micro-strip antenna array center, constitute punching orthogonally located so that lower micro-strip antenna array surface current
It is orthogonal with unsymmetrical double-cone antenna surface electric current, electromagnetic coupled is reduced, improve interport isolation, simplify antenna structure, reduce day
Line volume.Reflecting plate is formed using circular ring metal ground and lower circular cone, it is ensured that omnidirectional spoke of the directional diagram on working face simultaneously
Penetrate characteristic and gain.After lower micro-strip antenna array laying method, low frequency horizontal vertical interport isolation is less than -24dB.
Multiplexer includes an input port and two output ports, and multiplexer is placed in the lower conical base inner side,
It is embedded in antenna house circular base plate, multiplexer radius size is not more than lower conical base maximum inner radius；Multiplexer is placed in
Lower conical base inner side, can both reduce the spuious guarantee port third order intermodulation of port current that electromagnetic radiation brings, while also easy
In installation, it is ensured that homogeneity of product.After the multiplexer allocation method, vertical-horizontal port third order intermodulation less than-
153dBc。
Side feed structure includes first bending thin coaxial cable and second bending thin coaxial cable, side feed knot
While structure can ensure that upper and lower micro-strip antenna array feeds, the influence to upper and lower micro-strip antenna array surface current, drop are reduced
The problem that the low directional diagram out-of-roundness brought by side feed structure asymmetry is deteriorated.Fed using the side and tied
Structure, antenna general direction figure out-of-roundness ＜ 5dB.
Multifrequency dual-polarization omnidirectional antenna disclosed by the invention covers 2/3/4G and WLAN, Wi-Fi working frequency range, with many
Frequency vertical-horizontal bipolar omni-directional radiation function.Upper micro-strip antenna array is placed in the present invention top of unsymmetrical double-cone antenna
Portion, composition is orthogonally located, and unsymmetrical double-cone antenna is placed in into lower micro-strip antenna array center, and composition punching is orthogonally located, should
Textural association method can significantly improve vertical, horizontal polarization interport isolation in full frequency band, widen Antenna Operation bandwidth.
Side feed structure is placed in antenna entirety side by the present invention, solves multigroup antenna feed problem under compact size, while
Improve due to the phenomenon of antenna pattern out-of-roundness difference caused by feed structure asymmetry.
Brief description of the drawings
For clearer the explanation specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art does simple introduction, it should be apparent that, it is attached in describing below
Figure is some embodiments of the present invention, is seen for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is multifrequency dual-polarization omnidirectional antenna structural representation of the present invention；
Fig. 2 is the multifrequency dual-polarization omnidirectional antenna structural representation for removing antenna house；
Fig. 3 is the upper micro-strip antenna array structural representation of multifrequency dual-polarization omnidirectional antenna of the present invention；
Fig. 4 is the lower micro-strip antenna array structural representation of multifrequency dual-polarization omnidirectional antenna of the present invention；
Fig. 5 is the unsymmetrical double-cone antenna structure view of multifrequency dual-polarization omnidirectional antenna of the present invention；
Fig. 6 is the side feed structure schematic diagram of multifrequency dual-polarization omnidirectional antenna of the present invention；
Fig. 7 is the antenna cover structure schematic diagram of multifrequency dual-polarization omnidirectional antenna of the present invention；
Reference：
The upper micro-strip antenna arrays of 1-；11- metal radiations layer；111- radiating elements；112- circular metals ground；113- gaps；
12- dielectric layers；13- metal transmission network network layers；131- hook microstrip lines；132- bends microstrip line；133- centers of circle distributing point；Under 2-
Micro-strip antenna array；21- metal radiations layer；211- radiating elements；212- circular ring metals ground；213- gaps；22- annulars are situated between
Matter layer；23- metal transmission network network layers；231- hook microstrip lines；232- bends microstrip line；233- bias distributing points；24- circular holes；
3- unsymmetrical double-cone antennas；The upper circular cones of 31-；The upper conical base centre bores of 311-；32- coaxial cables；Circular cone under 33-；Under 331-
Epiconus centre bore；34- gaps；4- multiplexers；The output ports of 41- first；The output ports of 42- second；43- input ports；
5- sides feed structure；First bending coaxial cable of 51-；Second bending coaxial cable of 52-；6- antenna houses；Outside 61- antennas
Cover；62- circular bottom plates.
Specific embodiment：
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, institute it should be noted that term " first " and " second " be only used for description purpose, without
It is understood that to indicate or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；
Can mechanically connect, or electrically connect；Can be direct, it is also possible to be connected by intermediary, can be two units
UNICOM inside part.For the ordinary skill in the art, above-mentioned term tool in the present invention can specifically be understood
Body implication.
As shown in figs. 1-7, multifrequency dual-polarization omnidirectional antenna provided by the present invention, including：Upper micro-strip antenna array 1, under
Micro-strip antenna array 2, unsymmetrical double-cone antenna 3, multiplexer 4, side feed structure 5 and antenna house 6.Wherein, upper microstrip antenna
Array 1 and lower micro-strip antenna array 2 are parallel to each other, are respectively arranged at the top of unsymmetrical double-cone antenna 3 and middle part, and multiplexer 4 sets
The bottom inside of unsymmetrical double-cone antenna 3 is placed in, side feed structure 5 is arranged at antenna entirety side, and side feed structure 5 includes
Two bending coaxial cables, bending coaxial cable is defeated with multiplexer by the distributing point of upper micro-strip antenna array 1 and lower microstrip antenna 2
Exit port is connected, and antenna house includes low-drag cowl and circular bottom plate, wraps up whole antenna.
As shown in figure 3, upper micro-strip antenna array 1 is many array elements justifying battle array, including metal radiation layer 11, dielectric layer 12, metal
Transmission network network layers 13, metal radiation layer 11 and metal transmission network network layers 13 are located at dielectric layer both sides, metal radiation about 12 respectively
Layer 11 is made up of multiple radiating elements 111 and circular metal ground 112, and the annular of multiple radiating elements 111 is uniform to arrange and circle gold
Possession 112 is altogether.Metal transmission network network layers 12 are center of rotational symmetry feed structure, by multiple hook microstrip lines 131, a plurality of curved
Folding microstrip line 132 and center of circle distributing point 133 are constituted, and hook microstrip line 131 joins end to end with bending microstrip line 132, a plurality of bending
Microstrip line 132 is connected to center of circle distributing point 133, realizes the one-to-many constant power distribution of energy.One hook microstrip line and one it is curved
Folding microstrip line one radiating element of correspondence, micro-strip hook line is using gap 113 between correspondence radiating element to its couple feed.It is upper micro-
Band aerial array 2, to its integral feed, realizes the horizontally polarized omnidirectional radiation of high frequency by center of circle distributing point 133.
As shown in Figure 1 and Figure 2, upper micro-strip antenna array 1 is directly installed on unsymmetrical double-cone antenna 3 using plastic stent
On upper circular cone 31, this placement location of above-mentioned upper micro-strip antenna array 1 and unsymmetrical double-cone antenna 3 can be to asymmetric
Biconical antenna forms capacitive load, between reduction antenna while mutual coupling, it is ensured that vertical port band standing internal wave and dual polarization port
Isolation.Height is distributed by actual electromagnetic and adjusted between upper micro-strip antenna array 1 and upper circular cone 31.
As shown in figure 5, lower micro-strip antenna array 2 is many array element circular arrays, including metal radiation layer 21, annular is situated between
Matter layer 22, metal transmission network network layers 23, metal radiation layer 21 and metal transmission network network layers 23 are located at annular dielectric layer 22 respectively
Upper and lower both sides, metal radiation layer 21 is made up of multiple radiating elements 211 and circular ring metal ground 212, the ring of multiple radiating elements 21
Shape is uniformly arranged with circular ring metal ground 212 altogether, and metal transmission network network layers 22 are eccentric feed structure, by multiple hook micro-strips
Line 231, a plurality of bending microstrip line 232 and eccentric distributing point 233 are constituted, hook microstrip line 231 with bend the head and the tail phase of microstrip line 232
Even, a plurality of bending microstrip line 232 is connected to eccentric distributing point 233, realizes that energy constant power more than a point is distributed.One hook micro-strip
Line and bending microstrip line one radiating element of correspondence, micro-strip hook line is using gap 213 between correspondence radiating element to its coupling
Close feed.Lower micro-strip antenna array 2, to its integral feed, realizes the horizontally polarized omnidirectional radiation of low frequency by eccentric distributing point 233.
As shown in Figure 1 and Figure 2, lower micro-strip antenna array 2 is arranged on the upper circle of unsymmetrical double-cone antenna 3 using plastic stent
Cone 31 with lower circular cone 33 in the middle of so that unsymmetrical double-cone antenna 2 through circular hole 24 formed punching it is orthogonally located.Above-mentioned lower micro-strip day
This placement location of linear array 2 and unsymmetrical double-cone antenna 3, can make the surface current of lower micro-strip antenna array 2 with it is asymmetric
The surface current of biconical antenna 3 is orthogonal, and reducing electromagnetic coupled improves interport isolation, while simplifying antenna structure, reduces antenna body
Product.Radiating element 211 can form reflecting plate using circular ring metal ground 212 and lower circular cone 31, it is ensured that directional diagram is in work
Omnidirectional radiation characteristic and gain on face.
As shown in figure 5, circular cone 31, coaxial cable 32, lower circular cone 33, rotationally symmetrical seam on the envelope of unsymmetrical double-cone antenna 3
Gap 34, by metal stamping formed hollow structure, into cylindrical shape, bottom is in an inverted cone, and bottom centre is provided with logical on top for upper circular cone 31
Hole 311.The lower circular cone 33 is tapered by metal stamping formed hollow structure, and central upper portion is provided with through hole 331, and surface is provided with
Rotationally symmetrical gap 34.The inner wire of coaxial cable 332 is by the central upper portion through hole 331 of lower circular cone 33 and the lower central of upper circular cone 31
Circular hole 311, and upper circular cone 31 is welded, and coaxial cable outer conductor and lower circular cone 33 are welded, and unsymmetrical double-cone antenna 3 is positioned over antenna
In cover circular base plate 62；
As shown in Figure 1 and Figure 2, the rotational symmetry structure of unsymmetrical double-cone antenna 3 ensure that vertical polarization directions figure omnidirectional spoke
Penetrate characteristic.On the premise of upper and lower circular cone asymmetric property may insure bandwidth of operation, whole height is reduced to greatest extent, increase spoke
Penetrate gain.The upper micro-strip antenna array 1 disposed on upper circular cone 31 forms capacitive load with unsymmetrical double-cone antenna 3, improves non-
Symmetrical biconical antenna 3 is with standing internal wave.The lower surface of circular cone 33 is provided with rotationally symmetrical gap 34, and gap can block lower conical surface and cut
To electric current, with band standing internal wave is improved, cross polarization radiations are reduced, reduce the ability with horizontal polarization mutual coupling.The height in gap 34
Degree width is distributed according to actual current and adjusts.
As shown in fig. 6, upper micro-strip antenna array 1 is parallel with lower micro-strip antenna array 2, and ensure that upper microstrip antenna array is any
One radiating element intermediate gap 113 with lower micro-strip antenna array align by any one radiating element intermediate gap 213.
As shown in Figure 5,6, multiplexer 4 includes the first output port 41, the second output port 42 and input port 43.Multiplexing
Device 4 is placed in the bottom inside of lower circular cone 33, is embedded in antenna house circular base plate 62.First output port 41 is fed by side and tied
First bending thin coaxial cable 51 of structure 5 is connected with the center of circle distributing point 133 of upper micro-strip antenna array 1.Second output port 42
It is connected with the center of circle distributing point 233 of lower micro-strip antenna array 2 by the second bending thin coaxial cable 52 of side feed structure 5.
Multiplexer is placed in the bottom inside of lower circular cone 33, can both reduce the spuious rank of guarantee port three of port current that electromagnetic radiation brings
Intermodulation, while being also easy to install, it is ensured that homogeneity of product.
As shown in fig. 6, side feed structure 5 includes first bending thin coaxial cable 51 and second thin coaxial electrical of bending
Cable 52, first center of circle distributing point 133 of the upper micro-strip antenna array 1 of bending thin coaxial cable 51 one end connection, along upper micro-strip day
The edge of 113 supreme micro-strip antenna array of linear array radiating element gap 1, inclination is routed to the edge of lower micro-strip antenna array 2, second
The eccentric distributing point 233 of the lower micro-strip antenna array 2 of root bending thin coaxial cable 52 one end connection is radiated along lower micro-strip antenna array
Unit interstices 213 to lower microstrip antenna array column border 2, two bending thin coaxial cables are tightly fitted, and are vertically pulled down to lower circular cone
33 bottom margins, respectively with the first output port 41 of multiplexer 4, the second output port 42 is connected.Side feed structure 5 can be with
While ensureing that upper and lower micro-strip antenna array 1,2 feeds, reduce to upper and lower micro-strip antenna array 1, the influence of 2 surface currents, and
Reduce the problem that the directional diagram out-of-roundness brought by the asymmetry of side feed structure 5 is deteriorated.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；
Although being described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that；Its
The technical scheme described in foregoing embodiments can still be modified, or to which part or all technical characteristic
Replaced on an equal basis；And these modifications or replacement, appropriate technical solution essence is departed from various embodiments of the present invention technical side
Case category.
Claims (10)
1. multifrequency dual-polarization omnidirectional antenna, it is characterised in that including：Upper micro-strip antenna array（1）, lower micro-strip antenna array（2）、
Unsymmetrical double-cone antenna（3）, multiplexer（4）, side feed structure（5）And antenna house（6）；The unsymmetrical double-cone antenna（3）
Including upper circular cone（31）, middle part coaxial cable（32）And lower circular cone（33）, the upper circular cone（31）With lower circular cone（33）Structure
Difference, the middle part coaxial cable（32）With upper circular cone（31）With lower circular cone（33）Connect and compose the vertically polarized omnidirectional day of full frequency band
Line；The upper micro-strip antenna array（1）With lower micro-strip antenna array（2）It is parallel to each other, the upper micro-strip antenna array（1）Set
In the upper circular cone（31）On, the lower micro-strip antenna array（2）It is arranged at the lower circular cone（33）On, the multiplexer（4）
It is arranged at lower circular cone（33）Bottom inside, the side feed structure（5）It is arranged at antenna entirety side, the side feed knot
Structure（5）By upper micro-strip antenna array（1）With lower micro-strip antenna array（2）Two output ports of distributing point and multiplexer be connected.
2. multifrequency dual-polarization omnidirectional antenna according to claim 1, it is characterised in that：The upper circular cone（31）In being one kind
Hollow structure, into cylindrical shape, bottom is in an inverted cone, and bottom centre is provided with through hole on top（311）；The lower circular cone（33）It is also hollow
Structure, tapered, central upper portion is provided with through hole（331）, lower circular cone（33）Surface is provided with rotationally symmetrical gap（34）.
3. multifrequency dual-polarization omnidirectional antenna according to claim 1, it is characterised in that：The unsymmetrical double-cone antenna（3）
Through lower micro-strip antenna array（2）Center, unsymmetrical double-cone antenna（3）Axis and lower micro-strip antenna array（2）It is mutually perpendicular to, structure
Placed into punching quadrature；The upper micro-strip antenna array（3）It is positioned over circular cone（31）On, unsymmetrical double-cone antenna
（3）Axis and upper micro-strip antenna array（1）It is mutually perpendicular to.
4. multifrequency dual-polarization omnidirectional antenna according to claim 1, it is characterised in that：The side feed structure（5）Bag
Include first bending coaxial cable（51）With second bending coaxial cable（52）, first bending coaxial cable（51）One
The upper micro-strip antenna array of end connection（1）Center of circle distributing point（133）, the upper micro-strip antenna array of other end laminating（1）Surface emissivity
Unit interstices（113）Supreme micro-strip antenna array（1）Edge, and tilt to lower micro-strip antenna array（2）Edge；Described second
Bending coaxial cable（52）The lower micro-strip antenna array of one end connection（2）Eccentric distributing point（233）, the lower micro-strip day of other end laminating
Linear array（2）Surface emissivity unit interstices（213）To lower micro-strip antenna array（2）Edge, herein, first thin coaxial electrical of bending
Cable（51）With second bending thin coaxial cable（52）Tight vertical wirings to unsymmetrical double-cone antenna of fitting（3）Under circular cone
（33）Bottom margin, respectively with the first output port of multiplexer port（41）Second output port（42）Connection.
5. according to any described multifrequency dual-polarization omnidirectional antennas of claim 1-4, it is characterised in that：The upper microstrip antenna array
Row（1）It is many array element circular array, including metal radiation layer（11）, circular media layer（12）And metal transmission network network layers
（13）, the metal radiation layer（11）With the metal transmission network network layers（13）Circular media layer is located at respectively（12）Up and down
Both sides, constitute high band horizontally polarized omnidirectional antenna.
6. multifrequency dual-polarization omnidirectional antenna according to claim 5, it is characterised in that：The upper micro-strip antenna array（1）
Metal transmission network network layers（13）It is center of rotational symmetry feed structure, including outside multiple hook microstrip lines（131）, inner side it is many
Bar bends microstrip line（132）With center of circle distributing point（133）, above-mentioned hook microstrip line with it is described bending microstrip line join end to end, institute
State a plurality of bending microstrip line and be connected to the center of circle distributing point, the metal radiation layer（11）Including multiple radiating elements（111）
With circular metal ground（112）, above-mentioned radiating element（111）Along the uniform arrangement of annular and with circular metal ground（112）Connection.
7. the multifrequency dual-polarization omnidirectional antenna according to claim 1-4, it is characterised in that：The lower micro-strip antenna array
（2）It is many array element annular arrays, including metal radiation layer（21）, annular dielectric layer（22）, metal transmission network network layers（23）, institute
State metal radiation layer（21）With the metal transmission network network layers（23）The annular dielectric layer is located at respectively（22）Upper and lower both sides,
Constitute low-frequency range horizontally polarized omnidirectional antenna.
8. multifrequency dual-polarization omnidirectional antenna according to claim 7, it is characterised in that：The lower micro-strip antenna array（2）
Metal transmission network network layers be asymmetric eccentric feed structure, including outside multiple hook microstrip lines（231）, a plurality of arc in inner side
Microstrip line（232）With eccentric distributing point（233）, above-mentioned hook microstrip line joins end to end with the arc-shaped micro-strip line, described a plurality of
Arc-shaped micro-strip line is connected to the eccentric feed；The metal radiation layer（21）Including multiple radiating elements（211）And annular
Metal ground（212）, above-mentioned radiating element（211）Along the uniform arrangement of annular and with circular ring metal ground（212）Connection.
9. multifrequency dual-polarization omnidirectional antenna according to claim 1, it is characterised in that：The upper micro-strip antenna array appoint
Anticipate a radiating element gap（113）With any one radiating element gap of lower micro-strip antenna array（213）Need to be overlapped alignment.
10. multifrequency dual-polarization omnidirectional antenna according to claim 1, it is characterised in that：The multiplexer（4）Including one
Input port（41）With two output ports（42、43）, the multiplexer（4）Radius is not more than unsymmetrical double-cone antenna most imperial palace
Portion's radius.
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| CN108199128A (en) * | 2017-12-13 | 2018-06-22 | 瑞声科技（南京）有限公司 | A kind of antenna system and mobile terminal |
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| CN112563742A (en) * | 2020-12-03 | 2021-03-26 | 西安朗普达通信科技有限公司 | Novel broadband decoupling antenna housing |
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