CN103811861A - Horizontal polarization omnidirectional antenna - Google Patents
Horizontal polarization omnidirectional antenna Download PDFInfo
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- CN103811861A CN103811861A CN201410027024.6A CN201410027024A CN103811861A CN 103811861 A CN103811861 A CN 103811861A CN 201410027024 A CN201410027024 A CN 201410027024A CN 103811861 A CN103811861 A CN 103811861A
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- omnidirectional antenna
- horizontally polarized
- polarized omnidirectional
- antenna
- floor
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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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Abstract
The invention discloses a horizontal polarization omnidirectional antenna which comprises a dielectric slab, a feed network, a floor slab and a plurality of printed dipoles. The feed network is positioned above the dielectric slab and comprises a plurality of feed lines, the floor slab and the printed dipoles are positioned below the dielectric slab, each printed dipole is connected with the floor slab and provided with gaps, and the feed lines are connected with the gaps in a coupled and one-to-one corresponding manner and short-circuited with the printed dipoles in a one-to-one corresponding manner. The horizontal polarization omnidirectional antenna has the advantages that the horizontal polarization omnidirectional antenna is fine in machining consistency and high in stability, the polarization isolation degree between the horizontal polarization omnidirectional antenna and a vertical polarization omnidirectional antenna is high and the like.
Description
Technical field
The present invention relates to a kind of horizontally polarized omnidirectional antenna.
Background technology
Existing horizontally polarized omnidirectional antenna exists that processing consistency is poor, the low defect of polarization isolation between poor stability and vertical depolarized omnidirectional antenna.
Summary of the invention
The present invention is intended at least solve one of technical problem existing in prior art.For this reason, one object of the present invention is to propose a kind of horizontally polarized omnidirectional antenna.
To achieve these goals, propose a kind of horizontally polarized omnidirectional antenna according to embodiments of the invention, described horizontally polarized omnidirectional antenna comprises: dielectric-slab; Feeding network, described feeding network is positioned at the top of described dielectric-slab, and described feeding network comprises multiple feeder lines; Floor, described floor is positioned at the below of described dielectric-slab; With multiple printed dipoles, multiple described printed dipoles are positioned at the below of described dielectric-slab, each described printed dipole is connected with described floor and each described printed dipole has gap, wherein multiple described feeder lines are connected with multiple described slot-coupleds correspondingly, multiple described feeder lines correspondingly with multiple described printed dipole short circuits.
According to the horizontally polarized omnidirectional antenna of the embodiment of the present invention by multiple described feeder lines are connected with multiple described slot-coupleds correspondingly and make multiple described feeder lines correspondingly with multiple described printed dipole short circuits, thereby in the time that coaxial cable is accessed to described horizontally polarized omnidirectional antenna, can effectively suppress the electric current on the outer conductor of described coaxial cable, can greatly improve thus 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, also there is processing high conformity, stability advantages of higher according to the horizontally polarized omnidirectional antenna of the embodiment of the present invention.
Therefore, there is the polarization isolation advantages of higher between the high and vertical depolarized omnidirectional antenna of processing high conformity, stability according to the horizontally polarized omnidirectional antenna of the embodiment of the present invention.
In addition, can also there is following additional technical characterictic according to the horizontally polarized omnidirectional antenna of the embodiment of the present invention:
According to one embodiment of present invention, described feeding network also comprises 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.Can make thus the structure of described feeding network more reasonable, and can reduce the difficulty of processing of described feeding network.
According to one embodiment of present invention, each described printed dipole comprises left arm and right arm, described left arm is connected with described floor with each in described right arm, between wherein said left arm and described right arm, form described gap, a short circuit in described feeder line and described left arm and described right arm.Can make thus the structure of described printed dipole more reasonable.
According to one embodiment of present invention, the end of multiple described feeder lines correspondingly with multiple described printed dipole short circuits.Thus in the time that described coaxial cable is accessed to described horizontally polarized omnidirectional antenna, the electric current on the outer conductor of described coaxial cable can be more effectively suppressed, thereby the polarization isolation between described horizontally polarized omnidirectional antenna and described vertical depolarized omnidirectional antenna can be further improved.
According to one embodiment of present invention, the contiguous described gap of the short dot of described feeder line and described printed dipole.Thus in the time that described coaxial cable is accessed to described horizontally polarized omnidirectional antenna, the electric current on the outer conductor of described coaxial cable can be more effectively suppressed, thereby the polarization isolation between described horizontally polarized omnidirectional antenna and described vertical depolarized omnidirectional antenna can be further improved.
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 comprises metalwork, and described metalwork is located on the lower surface on described floor.By described metalwork is set on the lower surface on described floor, thereby can improve the circularity of described horizontally polarized omnidirectional antenna, reduce the impact of the standing-wave ratio of the high band of described horizontally polarized omnidirectional antenna on described vertical depolarized omnidirectional antenna.
According to one embodiment of present invention, described metalwork is triangle, and described metalwork vertically extends.The circularity that can further improve thus described horizontally polarized omnidirectional antenna, further reduces the impact of the standing-wave ratio of the high band of described horizontally polarized omnidirectional antenna on described vertical depolarized omnidirectional antenna.
According to one embodiment of present invention, described horizontally polarized omnidirectional antenna also comprises multiple coupling minor matters, one end of each described coupling minor matters is connected with described floor and each described coupling minor matters are extended 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 multiple described coupling minor matters are set, can regulate described horizontally polarized omnidirectional antenna and the isolation of 4G bipolar omni-directional ceiling antenna and the circularity of directional diagram.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is according to the structural representation of the 4G bipolar omni-directional ceiling antenna of the embodiment of the present invention;
Fig. 2 is according to the structural representation of the 4G bipolar omni-directional ceiling antenna of the embodiment of the present invention;
Fig. 3 is according to the structural representation of the 4G bipolar omni-directional ceiling antenna of the embodiment of the present invention;
Fig. 4 is according to the structural representation of the 4G bipolar omni-directional ceiling antenna of the embodiment of the present invention;
Fig. 5 is according to the structural representation of the vertical depolarized omnidirectional antenna of the embodiment of the present invention;
Fig. 6 is according to the structural representation of the horizontally polarized omnidirectional antenna of the embodiment of the present invention;
Fig. 7 is according to the structural representation of the horizontally polarized omnidirectional antenna of the embodiment of the present invention;
Fig. 8 is according to the structural representation of the bracing frame of the 4G bipolar omni-directional ceiling antenna of the embodiment of the present invention.
Embodiment
Describe embodiments of the invention below in detail, 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 identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, except as otherwise noted, the implication of " multiple " is two or more.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
Describe according to the 4G bipolar omni-directional ceiling antenna 1 of the embodiment of the present invention below with reference to Fig. 1-Fig. 7.As shown in Fig. 1-Fig. 7, comprise vertical depolarized omnidirectional antenna 10 and horizontally polarized omnidirectional antenna 20 according to the 4G bipolar omni-directional ceiling antenna 1 of the embodiment of the present invention.
First describe according to the vertical depolarized omnidirectional antenna 10 of the embodiment of the present invention with reference to figure 1-Fig. 5.As Figure 1-Figure 5, comprise chassis 100, monopole 200, the first fed element 300, coaxial cable 600 and multiple connector 400 according to the vertical depolarized omnidirectional antenna 10 of the embodiment of the present invention.
Describe according to the horizontally polarized omnidirectional antenna 20 of the embodiment of the present invention below with reference to Fig. 1-Fig. 4, Fig. 6 and Fig. 7.As shown in Fig. 1-Fig. 4, Fig. 6 and Fig. 7, comprise dielectric-slab 710, feeding network 720, floor 730 and multiple printed dipole 740 according to the horizontally polarized omnidirectional antenna 20 of the embodiment of the present invention.
Feeding network 720 is positioned at the top of dielectric-slab 710, and feeding network 720 comprises multiple feeder lines 721.Floor 730 is positioned at the below of dielectric-slab 710.Multiple printed dipoles 740 are positioned at the below 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, multiple feeder lines 721 correspondingly with multiple printed dipole 740 short circuits.That is to say, the quantity in the quantity of feeder line 721, the quantity of printed dipole 740 and gap 743 equates, and a feeder line 721 and a gap 743 be of coupled connections, a feeder line 721 and printed dipole 740 short circuits.
Wherein, coaxial cable 600 comprises 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 passes dielectric-slab 710 and is connected with feeding network 720.
Existing vertical depolarized omnidirectional antenna is all discone antenna, and the radiation component of existing vertical depolarized omnidirectional antenna is taper.Therefore, the radiation component of existing vertical depolarized omnidirectional antenna need to adopt the Sheet Metal Forming Technology of metal stretching and molding to process, and has mould complexity, defect that manufacturing cost is high.
By being set, the central axis of multiple relative central parts 210 is the Department of Radiation 220 of radial setting according to the vertical depolarized omnidirectional antenna 10 of the embodiment of the present invention, thereby not only can form the directional diagram of omnidirectional radiation, and without reprocessing cone, can reduce thus manufacture difficulty and the manufacturing cost of vertical depolarized omnidirectional antenna 10.
What is more important, according to the vertical depolarized omnidirectional antenna 10 of the embodiment of the present invention by the inner of multiple Departments of Radiation 220 is spaced apart from each other and multiple Department of Radiation 220 between form spatial accommodation 230, thereby the Part I of coaxial cable 600 610 can be contained in spatial accommodation 230, can be so that vertical depolarized omnidirectional antenna 10 has symmetrical structure, thereby not only can effectively reduce the deviation in roundness of electric current on vertical depolarized omnidirectional antenna 10 and the impact of cross polarization generation of the screen of coaxial cable 600, make the deviation in roundness of vertical depolarized omnidirectional antenna 10 be less than the requirement of 3.5dB, cross polarization ratio is greater than 10dB, and can reduce the coupling between vertical depolarized omnidirectional antenna 10 and horizontally polarized omnidirectional antenna 20, improve the installation consistency of vertical depolarized omnidirectional antenna 10.
Therefore, according to the vertical depolarized omnidirectional antenna 10 of the embodiment of the present invention have that deviation in roundness is little, the advantage such as cross polarization is less than large, omnidirectional radiation, manufacture difficulty, low cost of manufacture, installation high conformity.
According in the horizontally polarized omnidirectional antenna 20 of the embodiment of the present invention, feeding network 720, floor 730 and printed dipole 740 can form microstrip power divider.According to the horizontally polarized omnidirectional antenna 20 of the embodiment of the present invention by multiple feeder lines 721 are of coupled connections with multiple gaps 743 correspondingly and make multiple feeder lines 721 correspondingly with multiple printed dipole 740 short circuits, thereby in the time that coaxial cable 600 is accessed to horizontally polarized omnidirectional antenna 20, can effectively suppress the electric current on the outer conductor of coaxial cable 600, can greatly improve thus 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, also there is processing high conformity, stability advantages of higher according to the horizontally polarized omnidirectional antenna 20 of the embodiment of the present invention.
Therefore, according to the horizontally polarized omnidirectional antenna 20 of the embodiment of the present invention have processing high conformity, stability high, and vertical depolarized omnidirectional antenna 10 between polarization isolation advantages of higher.
According to the 4G bipolar omni-directional ceiling antenna 1 of the embodiment of the present invention by vertical depolarized omnidirectional antenna 10 and horizontally polarized omnidirectional antenna 20 are set, thereby have that deviation in roundness is little, cross polarization is less than large, omnidirectional radiation, manufacture difficulty, low cost of manufacture, installation high conformity, processing high conformity, stability are high, polarization isolation advantages of higher between horizontally polarized omnidirectional antenna 20 and vertical depolarized omnidirectional antenna 10.
Very extensive according to the adaptable field of 4G bipolar omni-directional ceiling antenna 1 of the embodiment of the present invention.For example, can be applied in the indoor distributed system of 4G mobile communication according to the 4G bipolar omni-directional ceiling antenna 1 of the embodiment of the present invention.In 4G mobile communication, can adopt MIMO technology to reach higher traffic rate, the use of 2 transmissions in can communicating by letter as MIMO respectively with horizontally polarized omnidirectional antenna 20 according to the vertical depolarized omnidirectional antenna 10 of the 4G bipolar omni-directional ceiling antenna 1 of the embodiment of the present invention.
The inner of each Department of Radiation 220 can be spaced apart with the central axis of central part 210.Can make thus the structure of vertical depolarized omnidirectional antenna 10 more reasonable.
Advantageously, the central axis of the inner of each Department of Radiation 220 and central part 210 is at upwards interval preset distance of the footpath of central part 210.In other words, the inner of multiple Departments of Radiation 220 can be positioned on same circumference, and the center of circle of this circumference can be positioned on the central axis of central part 210.Can make thus the structure of vertical depolarized omnidirectional antenna 10 more reasonable.
As Figure 1-Figure 5, each Department of Radiation 220 can be tabular (being that each Department of Radiation 220 can be sheet), and each Department of Radiation 220 can be vertically directed.Can make thus the structure of vertical depolarized omnidirectional antenna 10 more reasonable, and can reduce manufacture difficulty and the manufacturing cost of monopole 200, thereby can further reduce manufacture difficulty and the manufacturing cost of vertical depolarized omnidirectional antenna 10.
The first type surface of each Department of Radiation 220 can be plane, can be also curved surface.Wherein, the first type surface of Department of Radiation 220 refers to the surface of the area maximum of Department of Radiation 220.Each Department of Radiation 220 can be regular polygon (for example rectangle) 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 on chassis 100 110.
The shape of each Department of Radiation 220, structure, size can be mutually the same, also can be 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.That is to say, multiple Departments of Radiation 220 can circumferentially arranging along central part 210 equally spacedly.Can make thus vertical depolarized omnidirectional antenna 10 substantially the same to the radiation of all directions with 4G bipolar omni-directional ceiling antenna 1, meet better the radiation deviation in roundness requirement of vertical depolarized omnidirectional antenna 10 and 4G bipolar omni-directional ceiling antenna 1, make vertical depolarized omnidirectional antenna 10 and 4G bipolar omni-directional ceiling antenna 1 there is better omnidirectional radiation performance.
Department of Radiation 220 can be at least three.Particularly, Department of Radiation 220 can be three, and the angle between adjacent two Departments of Radiation 220 can be 120 degree.
As Figure 1-Figure 5, in some embodiments of the invention, it is upper that the Part II 620 of coaxial cable 600 can be connected in chassis 100, multiple connector 400 one and multiple Department of Radiation 220 one, and coaxial cable 600 can pass chassis 100.Can further reduce thus the deviation in roundness of electric current on vertical depolarized omnidirectional antenna 10 and the impact of cross polarization generation of the screen of coaxial cable 600, thereby can further reduce the deviation in roundness of vertical depolarized omnidirectional antenna 10, and further improve the cross polarization ratio of vertical depolarized omnidirectional antenna 10.
Particularly, 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 one upper (this connector 400 is connected with this Department of Radiation 220) and chassis 100 in multiple Departments of Radiation 220, in multiple connectors 400 successively.
In one embodiment of the invention, the first fed element 300 can comprise 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 be connected with central part 210 through the inner wire of chassis 100 and the first fed element 300.
As Figure 2-Figure 5, advantageously, the inner wire of the first fed element 300 can be through the middle part on chassis 100, and coaxial cable 600 can be through 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, thereby the first fed element 300 and coaxial cable 600 can be formed a whole.Can further reduce thus the deviation in roundness of electric current on vertical depolarized omnidirectional antenna 10 and the impact of cross polarization generation of the screen of coaxial cable 600, thereby can further reduce the deviation in roundness of vertical depolarized omnidirectional antenna 10, and further improve the cross polarization ratio of vertical depolarized omnidirectional antenna 10.
As Fig. 2-Fig. 5, the part that is positioned at 100 belows, chassis of the first fed element 300 can be close to the part that is positioned at 100 belows, chassis of coaxial cable 600.Can further reduce thus the deviation in roundness of electric current on vertical depolarized omnidirectional antenna 10 and the impact of cross polarization generation of the screen of coaxial cable 600, thereby can further reduce the deviation in roundness of vertical depolarized omnidirectional antenna 10, and further improve the cross polarization ratio of vertical depolarized omnidirectional antenna 10.
Inventor finds after further investigation: in existing antenna, each metal parts is directly connected.But in reality batch production, be difficult to guarantee that the contact-making surface of each metal parts is perfect condition, the contact-making surface of each metal parts can not be completely smooth.Cause thus can not contacting completely between the contact-making surface of each metal parts, can not directly connect reliably metal parts, thereby cause passive intermodulation to produce.
In examples more of the present invention, connector 400 is directly connected with Department of Radiation 220, and connector 400 is connected with chassis 100 couplings.Not only can guarantee that thus 4G bipolar omni-directional ceiling antenna 1 has higher electrical property and meets antenna frequency band and require (working frequency range that is 4G bipolar omni-directional ceiling antenna 1 at least reaches 806Hz-960MHz and 1710MHz-2700MHz), and can improve the passive intermodulation that 4G bipolar omni-directional ceiling antenna 1 produces.
Advantageously, vertical depolarized omnidirectional antenna 10 can also comprise insulating part (not shown), and described insulating part can be located between connector 400 and chassis 100.By described insulating part is set, can realizes connector 400 and be connected with chassis 100 couplings.There is the advantages such as simple and reasonable for structure according to the 4G bipolar omni-directional ceiling antenna 1 of the embodiment of the present invention thus, and can reduce the passive intermodulation that 4G bipolar omni-directional ceiling antenna 1 produces.
In addition, chassis 100 can also be general cylindrical, and chassis 100 is interior can have the unlimited container cavity in lower end, and a part for the first fed element 300 and coaxial cable 600 can be positioned at described container cavity.
In one embodiment of the invention, described insulating part can all be connected with each in connector 400 and chassis 100.In other words, described insulating part can all contact with each in connector 400 and chassis 100.Not only can reduce thus the difficulty of processing of 4G bipolar omni-directional ceiling antenna 1, and can make the structure of 4G bipolar omni-directional ceiling antenna 1 more firm.
Described insulating part can be non-metallic gasket, insulation enamelled coating or plastic film.
As Figure 1-Figure 4, in examples more of the present invention, vertical depolarized omnidirectional antenna 10 can also comprise becket 500, and becket 500 can be set on multiple Departments of Radiation 220, and becket 500 can be spaced apart with each Department of Radiation 220.Pass through to add becket 500 according to the vertical depolarized omnidirectional antenna 10 of the embodiment of the present invention, thereby can reduce the mutual coupling between vertical depolarized omnidirectional antenna 10 and horizontally polarized omnidirectional antenna 20, play the effect that frequency is selected, further improve deviation in roundness and the cross polarization (particularly at some frequency) of vertical depolarized omnidirectional antenna 10.Add after becket 500, the deviation in roundness of vertical depolarized omnidirectional antenna 10 is less than 2.5dB, and cross polarization ratio is greater than 15dB.
Particularly, becket 500 is not connected with all parts of vertical depolarized omnidirectional antenna 10.
As Figure 1-Figure 4, in one embodiment of the invention, connector 400 can comprise rake 410, vertical portion 420 and horizontal part 430.The upper end of rake 410 can directly be connected 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 couplings.In other words, vertically directed (extension) of vertical portion 420, horizontal part 430 can along continuous straight runs orientation (extension).Be 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 sheet, and each in rake 410, vertical portion 420 and horizontal part 430 can be tabular.
The first type surface of rake 410 can be plane, can be also curved surface.Wherein, the first type surface of rake 410 refers to the surface of the area maximum of rake 410.The first type surface of vertical portion 420 can be plane, can be also curved surface.Wherein, the first type surface of vertical portion 420 refers to the surface of the area maximum of vertical portion 420.The first type surface of horizontal part 430 can be plane, can be also curved surface.Wherein, the first type surface of horizontal part 430 refers to the surface of the area maximum of horizontal part 430.
As shown in Fig. 1-Fig. 4, Fig. 6 and Fig. 7, in some embodiments of the invention, feeding network 720 can also comprise 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.Can make thus the structure of feeding network 720 more reasonable, and can reduce the difficulty of processing of feeding network 720.
Particularly, center connector 722 can be circular, i.e. the projection of center connector 722 on 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 comprises left arm 741 and right arm 742, and left arm 741 can be connected with floor 730 with each in right arm 742.Wherein, between left arm 741 and right arm 742, can form gap 743, feeder line 721 can with left arm 741 and right arm 742 in a short circuit.Can make thus the structure of printed dipole 740 more reasonable.
Advantageously, as shown in Figure 6 and Figure 7, the end of multiple feeder lines 721 can be correspondingly and multiple printed dipole 740 short circuits.Thus in the time that coaxial cable 600 is accessed to horizontally polarized omnidirectional antenna 20, the electric current on the outer conductor of coaxial cable 600 can be more effectively suppressed, thereby the polarization isolation between horizontally polarized omnidirectional antenna 20 and vertical depolarized omnidirectional antenna 10 can be further improved.
Particularly, the end of a feeder line 721 can with the left arm of a printed dipole 740 741 and right arm 742 in a short circuit.
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.That is to say, multiple feeder lines 721 can circumferentially arranging along center connector 722 equally spacedly.Can make thus horizontally polarized omnidirectional antenna 20 substantially the same to the radiation of all directions with 4G bipolar omni-directional ceiling antenna 1, meet better the radiation deviation in roundness requirement of horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1, make horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1 there is 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.That is to say, multiple printed dipoles 740 can circumferentially arranging along floor 730 equally spacedly.Can make thus horizontally polarized omnidirectional antenna 20 substantially the same to the radiation of all directions with 4G bipolar omni-directional ceiling antenna 1, meet better the radiation deviation in roundness requirement of horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1, make horizontally polarized omnidirectional antenna 20 and 4G bipolar omni-directional ceiling antenna 1 there is better omnidirectional radiation performance.
Particularly, feeder line 721 can be three, and printed dipole 740 can be three.Now, feeding network 720, floor 730 and printed dipole 740 can form 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 shown in Figure 7, in examples more of the present invention, horizontally polarized omnidirectional antenna 20 can also comprise metalwork 750, and metalwork 750 can be located on the lower surface on floor 730.By metalwork 750 is set on the lower surface on floor 730, thereby can improve the circularity of horizontally polarized omnidirectional antenna 20, reduce the impact of the standing-wave ratio of the high band of horizontally polarized omnidirectional antenna 20 on vertical depolarized omnidirectional antenna 10.
Advantageously, metalwork 750 can be triangle, and metalwork 750 can vertically extend.In other words, the projection of metalwork 750 on a certain perpendicular can be triangle.The circularity that can further improve thus horizontally polarized omnidirectional antenna 20, further reduces the impact of the standing-wave ratio of the high band of horizontally polarized omnidirectional antenna 20 on vertical depolarized omnidirectional antenna 10.
As shown in Figure 6 and Figure 7, in an example of the present invention, horizontally polarized omnidirectional antenna 20 can also comprise 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 be extended to the direction away from floor 730.Wherein, each coupling minor matters 800 can be between adjacent two printed dipoles 740, and each printed dipole 740 can be between adjacent two coupling minor matters 800.By multiple coupling minor matters 800 are set, can regulate horizontally polarized omnidirectional antenna 20 and the isolation of 4G bipolar omni-directional ceiling antenna 1 and the circularity of directional diagram.
Advantageously, each coupling minor matters 800 can be metalworks, and each coupling minor matters 800 can be made of metal.Each coupling minor matters 800 can be strips.
As shown in Fig. 3 and Fig. 8,4G bipolar omni-directional ceiling antenna 1 can also comprise 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 bracing frame 900 being set on vertical depolarized omnidirectional antenna 10 and horizontally polarized omnidirectional antenna 20 being supported on bracing frame 900, thereby what can make that horizontally polarized omnidirectional antenna 20 installs is more firm, and then can make the structure of 4G bipolar omni-directional ceiling antenna 1 more firm.
Particularly, bracing frame 900 can be located on multiple Departments of Radiation 220.On bracing frame 900, can be provided with the installing hole 910 that connects along the vertical direction bracing frame 900, coaxial cable 600 can pass installing hole 910.Coaxial cable 600 can be more firmly installed thus, and can retrain the cabling of coaxial cable 600.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (9)
1. a horizontally polarized omnidirectional antenna, is characterized in that, comprising:
Dielectric-slab;
Feeding network, described feeding network is positioned at the top of described dielectric-slab, and described feeding network comprises multiple feeder lines;
Floor, described floor is positioned at the below of described dielectric-slab; With
Multiple printed dipoles, multiple described printed dipoles are positioned at the below of described dielectric-slab, each described printed dipole is connected with described floor and each described printed dipole has gap, wherein multiple described feeder lines are connected with multiple described slot-coupleds correspondingly, multiple described feeder lines correspondingly with multiple described printed dipole short circuits.
2. horizontally polarized omnidirectional antenna according to claim 1, it is characterized in that, described feeding network also comprises 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 comprises left arm and right arm, described left arm is connected with described floor with each in described right arm, between wherein said left arm and described right arm, form described gap, a short circuit in described feeder line and described left arm and described right arm.
4. horizontally polarized omnidirectional antenna according to claim 1, is characterized in that, the end of multiple described feeder lines correspondingly with multiple described printed dipole short circuits.
5. horizontally polarized omnidirectional antenna according to claim 1, is characterized in that, the contiguous described gap of short dot of described feeder line and described printed dipole.
6. horizontally polarized omnidirectional antenna according to claim 1, is characterized in that, described feeder line is at least three, and described printed dipole is at least three.
7. horizontally polarized omnidirectional antenna according to claim 1, is characterized in that, also comprises metalwork, and described metalwork is located on the lower surface on described floor.
8. horizontally polarized omnidirectional antenna according to claim 7, is characterized in that, described metalwork is triangle, and described metalwork vertically extends.
9. horizontally polarized omnidirectional antenna according to claim 1, it is characterized in that, also comprise multiple coupling minor matters, one end of each described coupling minor matters is connected with described floor and each described coupling minor matters are extended 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 |
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| 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 true CN103811861A (en) | 2014-05-21 |
| CN103811861B 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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| WO (1) | WO2015109996A1 (en) |
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| WO2015109996A1 (en) | 2015-07-30 |
| CN103811861B (en) | 2016-06-08 |
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