CN103811861B - Horizontally polarized omnidirectional antenna - Google Patents
Horizontally polarized omnidirectional antenna Download PDFInfo
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- CN103811861B CN103811861B CN201410027024.6A CN201410027024A CN103811861B CN 103811861 B CN103811861 B CN 103811861B CN 201410027024 A CN201410027024 A CN 201410027024A CN 103811861 B CN103811861 B CN 103811861B
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- omnidirectional antenna
- horizontally polarized
- polarized omnidirectional
- floor
- feeder line
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- 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
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- 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
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
- H01Q9/285—Planar dipole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/40—Element having extended radiating surface
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of horizontally polarized omnidirectional antenna, described horizontally polarized omnidirectional antenna includes: dielectric-slab; Feeding network, described feeding network is positioned at the top of described dielectric-slab, and described feeding network includes multiple feeder line; Floor, described floor is positioned at the lower section of described dielectric-slab; With multiple printed dipoles, multiple described printed dipoles are positioned at the lower section of described dielectric-slab, each described printed dipole is connected with described floor and each described printed dipole has gap, plurality of described feeder line is connected with multiple described slot-coupleds correspondingly, and multiple described feeder lines are short-circuit with multiple described printed dipoles correspondingly. Horizontally polarized omnidirectional antenna according to embodiments of the present invention has processing, and concordance is good, stability is high and polarization isolation advantages of higher between vertical depolarized omnidirectional antenna.
Description
Technical field
The present invention relates to a kind of horizontally polarized omnidirectional antenna.
Background technology
There is the defect that processing concordance polarization isolation poor, between poor stability and vertical depolarized omnidirectional antenna is low in existing horizontally polarized omnidirectional antenna.
Summary of the invention
It is contemplated that at least solve one of technical problem of existence in prior art. For this, it is an object of the present invention to propose a kind of horizontally polarized omnidirectional antenna.
To achieve these goals, proposing a kind of horizontally polarized omnidirectional antenna according to embodiments of the invention, described horizontally polarized omnidirectional antenna includes: dielectric-slab; Feeding network, described feeding network is positioned at the top of described dielectric-slab, and described feeding network includes multiple feeder line; Floor, described floor is positioned at the lower section of described dielectric-slab; With multiple printed dipoles, multiple described printed dipoles are positioned at the lower section of described dielectric-slab, each described printed dipole is connected with described floor and each described printed dipole has gap, plurality of described feeder line is connected with multiple described slot-coupleds correspondingly, and multiple described feeder lines are short-circuit with multiple described printed dipoles correspondingly.
Horizontally polarized omnidirectional antenna according to embodiments of the present invention is by making multiple described feeder line be connected with multiple described slot-coupleds correspondingly and making multiple described feeder line short-circuit with multiple described printed dipoles correspondingly, thus when coaxial cable is accessed described horizontally polarized omnidirectional antenna, can effectively suppress the electric current on the outer conductor of described coaxial cable, thus can significantly improve the polarization isolation between described horizontally polarized omnidirectional antenna and vertical depolarized omnidirectional antenna, polarization isolation between described horizontally polarized omnidirectional antenna and vertical depolarized omnidirectional antenna can be brought up to 40dB from 25dB.And, horizontally polarized omnidirectional antenna according to embodiments of the present invention also has processing, and concordance is good, stability advantages of higher.
Therefore, horizontally polarized omnidirectional antenna according to embodiments of the present invention has processing concordance is good, stability is high and polarization isolation advantages of higher between vertical depolarized omnidirectional antenna.
It addition, horizontally polarized omnidirectional antenna according to embodiments of the present invention can also have following additional technical characteristic:
According to one embodiment of present invention, described feeding network also includes center connector, and one end of each described feeder line is connected with described center connector and each described feeder line extends to the direction away from described center connector. The structure that thus can make described feeding network is more reasonable, and can reduce the difficulty of processing of described feeding network.
According to one embodiment of present invention, each described printed dipole includes left arm and right arm, described left arm is connected with described floor with each in described right arm, described gap, described feeder line and a short circuit in described left arm and described right arm is formed between wherein said left arm and described right arm. The structure that thus can make described printed dipole is more reasonable.
According to one embodiment of present invention, the end of multiple described feeder lines is short-circuit with multiple described printed dipoles correspondingly. Thus when described coaxial cable is accessed described horizontally polarized omnidirectional antenna, can more efficiently suppress the electric current on the outer conductor of described coaxial cable, such that it is able to improve the polarization isolation between described horizontally polarized omnidirectional antenna and described vertical depolarized omnidirectional antenna further.
According to one embodiment of present invention, the contiguous described gap of the short dot of described feeder line and described printed dipole. Thus when described coaxial cable is accessed described horizontally polarized omnidirectional antenna, can more efficiently suppress the electric current on the outer conductor of described coaxial cable, such that it is able to improve the polarization isolation between described horizontally polarized omnidirectional antenna and described vertical depolarized omnidirectional antenna further.
According to one embodiment of present invention, described feeder line is at least three, and described printed dipole is at least three.
According to one embodiment of present invention, described horizontally polarized omnidirectional antenna also includes metalwork, and described metalwork is located on the lower surface on described floor. By arranging described metalwork on the lower surface on described floor, such that it is able to improve the circularity of described horizontally polarized omnidirectional antenna, reduce the impact on the standing-wave ratio of the high band of described vertical depolarized omnidirectional antenna of the described horizontally polarized omnidirectional antenna.
According to one embodiment of present invention, described metalwork is triangle, and described metalwork vertically extends. Thus can improve the circularity of described horizontally polarized omnidirectional antenna further, reduce the impact on the standing-wave ratio of the high band of described vertical depolarized omnidirectional antenna of the described horizontally polarized omnidirectional antenna further.
According to one embodiment of present invention, described horizontally polarized omnidirectional antenna also includes multiple coupling minor matters, one end of each described coupling minor matters is connected with described floor and each described coupling minor matters extend to the direction away from described floor, wherein each described coupling minor matters are between adjacent two described printed dipoles, and each described printed dipole is between adjacent two described coupling minor matters. By arranging multiple described coupling minor matters, it is possible to regulate the isolation of described horizontally polarized omnidirectional antenna and 4G bipolar omni-directional ceiling antenna and the circularity of directional diagram.
The additional aspect of the present invention and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the structural representation of 4G bipolar omni-directional ceiling antenna according to embodiments of the present invention;
Fig. 2 is the structural representation of 4G bipolar omni-directional ceiling antenna according to embodiments of the present invention;
Fig. 3 is the structural representation of 4G bipolar omni-directional ceiling antenna according to embodiments of the present invention;
Fig. 4 is the structural representation of 4G bipolar omni-directional ceiling antenna according to embodiments of the present invention;
Fig. 5 is the structural representation of vertical depolarized omnidirectional antenna according to embodiments of the present invention;
Fig. 6 is the structural representation of horizontally polarized omnidirectional antenna according to embodiments of the present invention;
Fig. 7 is the structural representation of horizontally polarized omnidirectional antenna according to embodiments of the present invention;
Fig. 8 is the structural representation of the bracing frame of 4G bipolar omni-directional ceiling antenna according to embodiments of the present invention.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish. The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention. additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic. thus, define " first ", the feature of " second " can express or implicitly include one or more these features. in describing the invention, except as otherwise noted, " multiple " are meant that two or more.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly; Can be mechanically connected, it is also possible to be electrical connection; Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals. For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in the present invention.
Below with reference to Fig. 1-Fig. 7,4G bipolar omni-directional ceiling antenna 1 according to embodiments of the present invention is described. As shown in Fig. 1-Fig. 7,4G bipolar omni-directional ceiling antenna 1 according to embodiments of the present invention includes vertical depolarized omnidirectional antenna 10 and horizontally polarized omnidirectional antenna 20.
With reference first to Fig. 1-Fig. 5, vertical depolarized omnidirectional antenna 10 according to embodiments of the present invention is described. As Figure 1-Figure 5, vertical depolarized omnidirectional antenna 10 according to embodiments of the present invention includes chassis 100, monopole the 200, first fed element 300, coaxial cable 600 and multiple connector 400.
Monopole 200 includes central part 210 and multiple Department of Radiation 220, and central part 210 is located on chassis 100. The inner of each Department of Radiation 220 is connected with central part 210 and each Department of Radiation 220 extends to the direction away from central part 210. In other words, the central axis in multiple Department of Radiation 220 relative centre portions 210 is arranged radially. Wherein, the inner of multiple Departments of Radiation 220 is spaced apart from each other, and is formed and hold space 230 between multiple Departments of Radiation 220. First fed element 300 is connected with chassis 100 and central part 210.
Multiple connectors 400 are respectively correspondingly connected with multiple Departments of Radiation 220, and each connector 400 is connected with chassis 100. In other words, the quantity of connector 400 is equal to the quantity of Department of Radiation 220, and a connector 400 can be connected with a Department of Radiation 220. The Part I 610 of coaxial cable 600 is positioned at accommodation space 230.
Below with reference to Fig. 1-Fig. 4, Fig. 6 and Fig. 7, horizontally polarized omnidirectional antenna 20 according to embodiments of the present invention is described. As shown in Fig. 1-Fig. 4, Fig. 6 and Fig. 7, horizontally polarized omnidirectional antenna 20 according to embodiments of the present invention includes dielectric-slab 710, feeding network 720, floor 730 and multiple printed dipole 740.
Feeding network 720 is positioned at the top of dielectric-slab 710, and feeding network 720 includes multiple feeder line 721. Floor 730 is positioned at the lower section of dielectric-slab 710. Multiple printed dipoles 740 are positioned at the lower section of dielectric-slab 710, and each printed dipole 740 is connected with floor 730 and each printed dipole 740 has gap 743. Multiple feeder lines 721 are of coupled connections with multiple gaps 743 correspondingly, and multiple feeder lines 721 are short-circuit with multiple printed dipoles 740 correspondingly. It is to say, the quantity in the quantity of the quantity of feeder line 721, printed dipole 740 and gap 743 is equal, and a feeder line 721 and a gap 743 are of coupled connections, and a feeder line 721 and a printed dipole 740 are short-circuit.
Wherein, coaxial cable 600 includes outer conductor and inner wire, and the inner wire of coaxial cable 600 is located in the outer conductor of coaxial cable 600. The outer conductor of coaxial cable 600 is connected with floor 730, and the inner wire of coaxial cable 600 is through dielectric-slab 710 and is connected with feeding network 720.
Existing vertical depolarized omnidirectional antenna is all discone antenna, and namely the radiation component of existing vertical depolarized omnidirectional antenna is taper. Therefore, the radiation component of existing vertical depolarized omnidirectional antenna needs the Sheet Metal Forming Technology adopting metal stretching and molding to be processed, and there is mould complexity, defect that manufacturing cost is high.
Vertical depolarized omnidirectional antenna 10 according to embodiments of the present invention is by arranging the Department of Radiation 220 that the central axis in multiple relative centre portion 210 is arranged radially, thus being possible not only to be formed the directional diagram of omnidirectional radiation, and without reprocessing cone, manufacture difficulty and the manufacturing cost of vertical depolarized omnidirectional antenna 10 thus can be reduced.
What is more important, vertical depolarized omnidirectional antenna 10 according to embodiments of the present invention holds space 230 by making the inner of multiple Department of Radiation 220 be spaced apart from each other and being formed between multiple Department of Radiation 220, such that it is able to the Part I 610 of coaxial cable 600 is contained in accommodation space 230, can so that vertical depolarized omnidirectional antenna 10 has symmetrical structure, thus being possible not only to the impact that the electric current being effectively reduced the screen layer of coaxial cable 600 out-of-roundness and cross polarization on vertical depolarized omnidirectional antenna 10 produces, the out-of-roundness making vertical depolarized omnidirectional antenna 10 is less than the requirement of 3.5dB, cross polarization ratio is more than 10dB, and coupling between vertical depolarized omnidirectional antenna 10 with horizontally polarized omnidirectional antenna 20 can be reduced, improve the installation concordance of vertical depolarized omnidirectional antenna 10.
Therefore, vertical depolarized omnidirectional antenna 10 according to embodiments of the present invention has that out-of-roundness is little, cross polarization is than big, omnidirectional radiation, the advantage such as manufacture difficulty is little, low cost of manufacture, installation concordance are good.
In horizontally polarized omnidirectional antenna 20 according to embodiments of the present invention, feeding network 720, floor 730 and printed dipole 740 may be constructed microstrip power divider. horizontally polarized omnidirectional antenna 20 according to embodiments of the present invention is by making multiple feeder line 721 be of coupled connections with multiple gaps 743 correspondingly and making multiple feeder line 721 short-circuit with multiple printed dipoles 740 correspondingly, thus when coaxial cable 600 is accessed horizontally polarized omnidirectional antenna 20, can effectively suppress the electric current on the outer conductor of coaxial cable 600, thus can significantly improve the polarization isolation between horizontally polarized omnidirectional antenna 20 and vertical depolarized omnidirectional antenna 10, polarization isolation between horizontally polarized omnidirectional antenna 20 and vertical depolarized omnidirectional antenna 10 can be brought up to 40dB from 25dB. and, horizontally polarized omnidirectional antenna 20 according to embodiments of the present invention also has processing, and concordance is good, stability advantages of higher.
Therefore, horizontally polarized omnidirectional antenna 20 according to embodiments of the present invention has processing concordance is good, stability is high and polarization isolation advantages of higher between vertical depolarized omnidirectional antenna 10.
4G bipolar omni-directional ceiling antenna according to embodiments of the present invention 1 by arranging vertical depolarized omnidirectional antenna 10 and horizontally polarized omnidirectional antenna 20, thus have that out-of-roundness is little, cross polarization than big, omnidirectional radiation, manufacture difficulty is little, low cost of manufacture, installation concordance are good, concordance is good, stability is high in processing, polarization isolation advantages of higher between horizontally polarized omnidirectional antenna 20 and vertical depolarized omnidirectional antenna 10.
The adaptable field of 4G bipolar omni-directional ceiling antenna 1 according to embodiments of the present invention is very extensive. Such as, 4G bipolar omni-directional ceiling antenna 1 according to embodiments of the present invention can apply in the indoor distributed system of 4G mobile communication. In 4G mobile communication, MIMO technology can be adopted to reach higher traffic rate, the vertical depolarized omnidirectional antenna 10 of 4G bipolar omni-directional ceiling antenna 1 according to embodiments of the present invention can communicate respectively as MIMO with horizontally polarized omnidirectional antenna 20 in the use of 2 transmissions.
The inner of each Department of Radiation 220 can be spaced apart with the central axis of central part 210. The structure that thus can make vertical depolarized omnidirectional antenna 10 is more reasonable.
Advantageously, the inner of each Department of Radiation 220 and the central axis of central part 210 at central part 210 radially spaced a predetermined distance. In other words, the inner of multiple Departments of Radiation 220 may be located on same circumference, and the center of circle of this circumference may be located on the central axis of central part 210. The structure that thus can make vertical depolarized omnidirectional antenna 10 is more reasonable.
As Figure 1-Figure 5, each Department of Radiation 220 can be tabular (namely each Department of Radiation 220 can be lamellar), and each Department of Radiation 220 can be vertically oriented. The structure that thus can make vertical depolarized omnidirectional antenna 10 is more reasonable, and can reduce manufacture difficulty and the manufacturing cost of monopole 200, such that it is able to reduce manufacture difficulty and the manufacturing cost of vertical depolarized omnidirectional antenna 10 further.
The first type surface of each Department of Radiation 220 can be plane, it is also possible to be curved surface. Wherein, the first type surface of Department of Radiation 220 refers to the surface that the area of Department of Radiation 220 is maximum.Each Department of Radiation 220 can be the polygon (such as rectangle) of rule or irregular polygon. Each Department of Radiation 220 can be orthogonal with chassis 100. In other words, the first type surface of each Department of Radiation 220 can be orthogonal with the upper surface 110 on chassis 100.
The shape of each Department of Radiation 220, structure, size can be mutually the same, it is also possible to different.
As Figure 1-Figure 5, in an example of the present invention, the angle between adjacent two Departments of Radiation 220 can be equal to each other. In other words, the angle between adjacent two Departments of Radiation 220 can be predetermined angular. It is to say, multiple Departments of Radiation 220 can be arranged equally spacedly along the circumference of central part 210. Vertical depolarized omnidirectional antenna 10 and 4G bipolar omni-directional ceiling antenna 1 thus can be made essentially the same to the radiation of all directions, meet the radiation out-of-roundness requirement of vertical depolarized omnidirectional antenna 10 and 4G bipolar omni-directional ceiling antenna 1 better, make vertical depolarized omnidirectional antenna 10 and 4G bipolar omni-directional ceiling antenna 1 have better omnidirectional radiation performance.
Department of Radiation 220 can be at least three. Specifically, Department of Radiation 220 can be three, and the angle between adjacent two Departments of Radiation 220 can be 120 degree.
Monopole 200 can be metalwork, and namely monopole 200 can be made of metal. Connector 400 can be metal connecting piece, and namely connector 400 can be made of metal.
As Figure 1-Figure 5, in some embodiments of the invention, the Part II 620 of coaxial cable 600 can be connected in chassis 100, multiple connector 400 and in multiple Department of Radiation 220, and coaxial cable 600 can pass chassis 100. Thus can reduce the impact that out-of-roundness and the cross polarization of vertical depolarized omnidirectional antenna 10 are produced by the electric current of the screen layer of coaxial cable 600 further, such that it is able to reduce the out-of-roundness of vertical depolarized omnidirectional antenna 10 further, and improve the cross polarization ratio of vertical depolarized omnidirectional antenna 10 further.
Specifically, the Part II 620 of coaxial cable 600 can be close to the Part I 610 of coaxial cable 600, and the Part II 620 of coaxial cable 600 can be welded on in multiple Department of Radiation 220, in multiple connector 400 on (this connector 400 is connected with this Department of Radiation 220) and chassis 100 successively.
In one embodiment of the invention, first fed element 300 can include outer conductor and inner wire, the inner wire of the first fed element 300 can be located in the outer conductor of the first fed element 300, the outer conductor of the first fed element 300 can be connected with chassis 100, and the inner wire of the first fed element 300 can pass the inner wire of chassis 100 and the first fed element 300 and can be connected with central part 210.
As Figure 2-Figure 5, it is advantageous to, the inner wire of the first fed element 300 can pass the middle part on chassis 100, and coaxial cable 600 can pass the middle part on chassis 100. In other words, the first fed element 300 and coaxial cable 600 can together with through the middle part on chassis 100, such that it is able to the first fed element 300 and coaxial cable 600 are formed a whole. Thus can reduce the impact that out-of-roundness and the cross polarization of vertical depolarized omnidirectional antenna 10 are produced by the electric current of the screen layer of coaxial cable 600 further, such that it is able to reduce the out-of-roundness of vertical depolarized omnidirectional antenna 10 further, and improve the cross polarization ratio of vertical depolarized omnidirectional antenna 10 further.
Such as Fig. 2-Fig. 5, the first fed element 300 be positioned at that the part below chassis 100 can be close to coaxial cable 600 be positioned at the part below chassis 100.Thus can reduce the impact that out-of-roundness and the cross polarization of vertical depolarized omnidirectional antenna 10 are produced by the electric current of the screen layer of coaxial cable 600 further, such that it is able to reduce the out-of-roundness of vertical depolarized omnidirectional antenna 10 further, and improve the cross polarization ratio of vertical depolarized omnidirectional antenna 10 further.
Inventor finds after further investigation: in existing antenna, each metal parts is joined directly together. But in reality is produced in batches, it is difficult to ensure that the contact surface of each metal parts is perfect condition, namely the contact surface of each metal parts can not be substantially flat. Thus causing between the contact surface of each metal parts can not be fully in contact with, it is impossible to metal parts is reliably directly connected to, thus causing that passive intermodulation produces.
In some examples of the present invention, connector 400 and Department of Radiation 220 are joined directly together, and connector 400 is connected with chassis 100 coupling. Thus it is possible not only to ensure that 4G bipolar omni-directional ceiling antenna 1 has higher electrical property and meets antenna band requirement (namely the working frequency range of 4G bipolar omni-directional ceiling antenna 1 is at least up to 806Hz-960MHz and 1710MHz-2700MHz), and the passive intermodulation that 4G bipolar omni-directional ceiling antenna 1 produces can be improved.
Advantageously, vertical depolarized omnidirectional antenna 10 can also include insulating part (not shown), and described insulating part can be located between connector 400 and chassis 100. By arranging described insulating part, it is possible to achieve connector 400 is connected with chassis 100 coupling. 4G bipolar omni-directional ceiling antenna 1 thus according to the embodiment of the present invention has the advantages such as simple and reasonable for structure, and can reduce the passive intermodulation that 4G bipolar omni-directional ceiling antenna 1 produces.
The size of the coupling area on connector 400 and chassis 100 can be determined according to the performance requirement of 4G bipolar omni-directional ceiling antenna 1 and adjust, it is therefore an objective in order to make 4G bipolar omni-directional ceiling antenna 1 can have sufficiently large capacitance under requiring frequency.
Chassis 100 can be metal chassis, and namely chassis 100 can be made of metal. As depicted in figs. 1 and 2, chassis 100 can be tabular. The upper surface 110 on chassis 100 can be plane, and connector 400 can couple with the upper surface 110 on chassis 100 and be connected. Chassis 100 can be circular, regular polygon or irregular polygon.
Additionally, chassis 100 can also is that general cylindrical and the interior accommodation chamber can with open at its lower end, chassis 100, a part for the first fed element 300 and coaxial cable 600 may be located at described accommodation intracavity.
In one embodiment of the invention, described insulating part can be connected with each of which in connector 400 and chassis 100. In other words, described insulating part can contact with each of which in connector 400 and chassis 100. Thus it is possible not only to reduce the difficulty of processing of 4G bipolar omni-directional ceiling antenna 1, and the structure of 4G bipolar omni-directional ceiling antenna 1 can be made more firm.
Described insulating part can be non-metallic gasket, insulating lacquer layer or plastic foil.
As Figure 1-Figure 4, in some examples of the present invention, vertical depolarized omnidirectional antenna 10 can also include becket 500, and becket 500 can be set on multiple Department of Radiation 220, and becket 500 can be spaced apart with each Department of Radiation 220. Vertical depolarized omnidirectional antenna 10 according to embodiments of the present invention is by adding becket 500, such that it is able to the mutual coupling reduced between vertical depolarized omnidirectional antenna 10 and horizontally polarized omnidirectional antenna 20, play the effect that frequency selects, improve out-of-roundness and the cross polarization (particularly at some frequency) of vertical depolarized omnidirectional antenna 10 further.After adding becket 500, the out-of-roundness of vertical depolarized omnidirectional antenna 10 is less than 2.5dB, and cross polarization ratio is more than 15dB.
Specifically, becket 500 is all not attached to all parts of vertical depolarized omnidirectional antenna 10.
As Figure 1-Figure 4, in one embodiment of the invention, connector 400 can include rake 410, vertical portion 420 and horizontal part 430. The upper end of rake 410 can be joined directly together with Department of Radiation 220, and the upper end of vertical portion 420 can be connected with the lower end of rake 410, and horizontal part 430 can be connected with the lower end of vertical portion 420, and horizontal part 430 can be connected with chassis 100 coupling. In other words, vertical portion 420 can be vertically oriented (extension), and horizontal part 430 can be directed (extension) in the horizontal direction. It is thus connected part 400 and there is the advantages such as simple and reasonable for structure.
Each in rake 410, vertical portion 420 and horizontal part 430 can be lamellar, and namely each in rake 410, vertical portion 420 and horizontal part 430 can be tabular.
The first type surface of rake 410 can be plane, it is also possible to be curved surface. Wherein, the first type surface of rake 410 refers to the surface that the area of rake 410 is maximum. The first type surface of vertical portion 420 can be plane, it is also possible to be curved surface. Wherein, the first type surface of vertical portion 420 refers to the surface that the area of vertical portion 420 is maximum. The first type surface of horizontal part 430 can be plane, it is also possible to be curved surface. Wherein, the first type surface of horizontal part 430 refers to the surface that the area of horizontal part 430 is maximum.
Connector 400 can be metal connecting piece, and namely connector 400 can be made of metal. Advantageously, rake 410, vertical portion 420 and horizontal part 430 may be integrally formed.
As shown in Fig. 1-Fig. 4, Fig. 6 and Fig. 7, in some embodiments of the invention, feeding network 720 can also include center connector 722, and one end of each feeder line 721 can be connected with center connector 722, and each feeder line 721 can extend to the direction away from center connector 722. The structure that thus can make feeding network 720 is more reasonable, and can reduce the difficulty of processing of feeding network 720.
Specifically, center connector 722 can be circular, and namely center connector 722 projection in the horizontal plane can be circular.
In one embodiment of the invention, as shown in Fig. 1-Fig. 4, Fig. 6 and Fig. 7, each printed dipole 740 includes left arm 741 and right arm 742, left arm 741 and each in right arm 742 and can be connected with floor 730. Wherein, can forming gap 743 between left arm 741 and right arm 742, feeder line 721 can with a short circuit in left arm 741 and right arm 742. The structure that thus can make printed dipole 740 is more reasonable.
Advantageously, as shown in Figure 6 and Figure 7, the end of multiple feeder lines 721 can be short-circuit with multiple printed dipoles 740 correspondingly. Thus when coaxial cable 600 is accessed horizontally polarized omnidirectional antenna 20, can more efficiently suppress the electric current on the outer conductor of coaxial cable 600, such that it is able to the polarization isolation improved further between horizontally polarized omnidirectional antenna 20 and vertical depolarized omnidirectional antenna 10.
Specifically, the end of a feeder line 721 can with a short circuit in the left arm 741 of a printed dipole 740 and right arm 742.
The short dot of feeder line 721 and printed dipole 740 can be close to gap 743. Thus when coaxial cable 600 is accessed horizontally polarized omnidirectional antenna 20, can more efficiently suppress the electric current on the outer conductor of coaxial cable 600, such that it is able to the polarization isolation improved further between horizontally polarized omnidirectional antenna 20 and vertical depolarized omnidirectional antenna 10.
In a concrete example of the present invention, feeder line 721 can be at least three, and printed dipole 740 can be at least three.
Angle between adjacent two feeder lines 721 can be equal to each other. In other words, the angle between adjacent two feeder lines 721 can be predetermined angular. It is to say, multiple feeder lines 721 can be arranged equally spacedly along the circumference of center connector 722. Horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1 thus can be made essentially the same to the radiation of all directions, meet the radiation out-of-roundness requirement of horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1 better, make horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1 have better omnidirectional radiation performance.
Angle between adjacent two printed dipoles 740 can be equal to each other. In other words, the angle between adjacent two printed dipoles 740 can be predetermined angular. It is to say, multiple printed dipoles 740 can be arranged equally spacedly along the circumference on floor 730. Horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1 thus can be made essentially the same to the radiation of all directions, meet the radiation out-of-roundness requirement of horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1 better, make horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1 have better omnidirectional radiation performance.
Specifically, feeder line 721 can be three, and printed dipole 740 can be three. Now, feeding network 720, floor 730 and printed dipole 740 may be constructed the microstrip power divider of a point three. Angle between adjacent two feeder lines 721 can be 120 degree, and the angle between adjacent two printed dipoles 740 can be 120 degree.
As it is shown in fig. 7, in some examples of the present invention, horizontally polarized omnidirectional antenna 20 can also include metalwork 750, and metalwork 750 can be located on the lower surface on floor 730. By arranging metalwork 750 on the lower surface on floor 730, such that it is able to improve the circularity of horizontally polarized omnidirectional antenna 20, reduce the horizontally polarized omnidirectional antenna 20 impact on the standing-wave ratio of the high band of vertical depolarized omnidirectional antenna 10.
Advantageously, metalwork 750 can be triangle, and metalwork 750 can vertically extend. In other words, the metalwork 750 projection on a certain perpendicular can be triangle. Thus can improve the circularity of horizontally polarized omnidirectional antenna 20 further, reduce the horizontally polarized omnidirectional antenna 20 impact on the standing-wave ratio of the high band of vertical depolarized omnidirectional antenna 10 further.
As shown in Figure 6 and Figure 7, in an example of the present invention, horizontally polarized omnidirectional antenna 20 can also include multiple coupling minor matters 800, and one end of each coupling minor matters 800 can be connected with floor 730 and each coupling minor matters 800 can extend to the direction away from floor 730. Wherein, each coupling minor matters 800 may be located between adjacent two printed dipoles 740, and each printed dipole 740 may be located between adjacent two coupling minor matters 800. By arranging multiple coupling minor matters 800, it is possible to regulate the isolation of horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1 and the circularity of directional diagram.
Advantageously, each coupling minor matters 800 can be metalwork, and namely each coupling minor matters 800 can be made of metal. Each coupling minor matters 800 can be strip.
As shown in figures 3 and 8,4G bipolar omni-directional ceiling antenna 1 can also include bracing frame 900, and bracing frame 900 can be located on vertical depolarized omnidirectional antenna 10, and horizontally polarized omnidirectional antenna 20 can be supported on bracing frame 900.By arranging bracing frame 900 on vertical depolarized omnidirectional antenna 10 and horizontally polarized omnidirectional antenna 20 being supported on bracing frame 900, such that it is able to what make that horizontally polarized omnidirectional antenna 20 installs is more firm, and then the structure of 4G bipolar omni-directional ceiling antenna 1 can be made more firm.
Specifically, bracing frame 900 can be located on multiple Department of Radiation 220. Can being provided with the installing hole 910 of through along the vertical direction bracing frame 900 on bracing frame 900, coaxial cable 600 can pass installing hole 910. Thus can more be firmly installed coaxial cable 600, and the cabling of coaxial cable 600 can be retrained.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention. In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example. And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: these embodiments can being carried out multiple change, amendment, replacement and modification when without departing from principles of the invention and objective, the scope of the present invention is limited by claim and equivalent thereof.
Claims (8)
1. a horizontally polarized omnidirectional antenna, it is characterised in that including:
Dielectric-slab;
Feeding network, described feeding network is positioned at the top of described dielectric-slab, and described feeding network includes multiple feeder line;
Floor, described floor is positioned at the lower section of described dielectric-slab;
Multiple printed dipoles, multiple described printed dipoles are positioned at the lower section of described dielectric-slab, each described printed dipole is connected with described floor and each described printed dipole has gap, plurality of described feeder line is connected with multiple described slot-coupleds correspondingly, and multiple described feeder lines are short-circuit with multiple described printed dipoles correspondingly; With
Metalwork, described metalwork is located on the lower surface on described floor.
2. horizontally polarized omnidirectional antenna according to claim 1, it is characterized in that, described feeding network also includes center connector, and one end of each described feeder line is connected with described center connector and each described feeder line extends to the direction away from described center connector.
3. horizontally polarized omnidirectional antenna according to claim 1, it is characterized in that, each described printed dipole includes left arm and right arm, described left arm is connected with described floor with each in described right arm, described gap, described feeder line and a short circuit in described left arm and described right arm is formed between wherein said left arm and described right arm.
4. horizontally polarized omnidirectional antenna according to claim 1, it is characterised in that the end of multiple described feeder lines is short-circuit with multiple described printed dipoles correspondingly.
5. horizontally polarized omnidirectional antenna according to claim 1, it is characterised in that described feeder line is contiguous described gap with the short dot of described printed dipole.
6. horizontally polarized omnidirectional antenna according to claim 1, it is characterised in that described feeder line is at least three, described printed dipole is at least three.
7. horizontally polarized omnidirectional antenna according to claim 1, it is characterised in that described metalwork is triangle, and described metalwork vertically extends.
8. horizontally polarized omnidirectional antenna according to claim 1, it is characterized in that, also include multiple coupling minor matters, one end of each described coupling minor matters is connected with described floor and each described coupling minor matters extend to the direction away from described floor, wherein each described coupling minor matters are between adjacent two described printed dipoles, and each described printed dipole is between adjacent two described coupling minor matters.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027024.6A CN103811861B (en) | 2014-01-21 | 2014-01-21 | Horizontally polarized omnidirectional antenna |
| PCT/CN2015/071142 WO2015109996A1 (en) | 2014-01-21 | 2015-01-20 | Horizontally polarized omni-directional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027024.6A CN103811861B (en) | 2014-01-21 | 2014-01-21 | Horizontally polarized omnidirectional antenna |
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| Publication Number | Publication Date |
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| CN103811861A CN103811861A (en) | 2014-05-21 |
| CN103811861B true CN103811861B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410027024.6A Active CN103811861B (en) | 2014-01-21 | 2014-01-21 | Horizontally polarized omnidirectional antenna |
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| Country | Link |
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| CN (1) | CN103811861B (en) |
| WO (1) | WO2015109996A1 (en) |
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| CN103811861B (en) * | 2014-01-21 | 2016-06-08 | 盛宇百祺（南京）通信技术有限公司 | Horizontally polarized omnidirectional antenna |
| CN104103900B (en) * | 2014-07-10 | 2016-08-17 | 电子科技大学 | A kind of wideband dual polarized omnidirectional antenna of low section |
| CN104300208B (en) * | 2014-09-05 | 2017-09-29 | 江苏省东方世纪网络信息有限公司 | Vertical depolarized omnidirectional antenna |
| CN106450797A (en) * | 2015-08-06 | 2017-02-22 | 启碁科技股份有限公司 | Antenna system |
| CN105186110B (en) * | 2015-09-29 | 2018-09-21 | 辽宁普天数码股份有限公司 | A kind of digital television transmitting aerial of stub axle structure |
| CN105449353B (en) * | 2015-12-16 | 2019-06-14 | 江苏省东方世纪网络信息有限公司 | All-around top absorbing antenna |
| CN106025527A (en) * | 2016-05-14 | 2016-10-12 | 上海大学 | Broadband horizontally-polarized omnidirectional antenna with coupled line |
| WO2018094625A1 (en) * | 2016-11-23 | 2018-05-31 | 深圳市大疆创新科技有限公司 | Frame of unmanned aerial vehicle, unmanned aerial vehicle and antenna switching method |
| CN107181051A (en) * | 2017-04-07 | 2017-09-19 | 深圳市景程信息科技有限公司 | The high isolation dual polarized wide frequency antenna of restructural |
| CN109411903A (en) * | 2017-08-18 | 2019-03-01 | 中国移动通信集团设计院有限公司 | The high performance wideband dual-polarization omnidirectional antenna of indoor MIMO communication system |
| CN107732437A (en) * | 2017-09-01 | 2018-02-23 | 哈尔滨工业大学 | Broadband low section horizontally polarized omnidirectional antenna |
| WO2019104565A1 (en) * | 2017-11-29 | 2019-06-06 | 华为技术有限公司 | Dual-polarized antenna and communication device |
| CN108075217B (en) * | 2018-01-19 | 2024-04-09 | 武汉波诺电子科技有限公司 | Novel omnidirectional antenna |
| CN108832270A (en) * | 2018-05-08 | 2018-11-16 | 深圳市通用测试系统有限公司 | Dual-band and dual-polarization omnidirectional antenna |
| NL2022790B1 (en) | 2019-03-22 | 2020-09-28 | The Antenna Company International N V | Antenna for IEEE 802.11 applications, wireless device, and wireless communication system |
| CN112086738A (en) * | 2019-06-14 | 2020-12-15 | 中国移动通信集团设计院有限公司 | Omnidirectional indoor division MIMO antenna |
| US10892562B1 (en) | 2019-07-12 | 2021-01-12 | King Fahd University Of Petroleum And Minerals | Multi-beam Yagi-based MIMO antenna system |
| CN112768885B (en) * | 2020-12-17 | 2023-10-03 | 深圳市南斗星科技有限公司 | Indoor distributed antenna |
| CN112821055B (en) * | 2021-01-05 | 2022-07-15 | 上海安费诺永亿通讯电子有限公司 | Single-port dual-frequency dual-polarization omnidirectional antenna applied to WIFI |
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| WO2015109996A1 (en) | 2015-07-30 |
| CN103811861A (en) | 2014-05-21 |
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