CN106848549A - A kind of dual polarized antenna array element - Google Patents

A kind of dual polarized antenna array element Download PDF

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Publication number
CN106848549A
CN106848549A CN201710154044.3A CN201710154044A CN106848549A CN 106848549 A CN106848549 A CN 106848549A CN 201710154044 A CN201710154044 A CN 201710154044A CN 106848549 A CN106848549 A CN 106848549A
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CN
China
Prior art keywords
balun
radiation arm
feeder pillar
bay
radiation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710154044.3A
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Chinese (zh)
Inventor
刘东峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dean Foshan City Communication Apparatus Co Ltd
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Dean Foshan City Communication Apparatus Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dean Foshan City Communication Apparatus Co Ltd filed Critical Dean Foshan City Communication Apparatus Co Ltd
Priority to CN201710154044.3A priority Critical patent/CN106848549A/en
Publication of CN106848549A publication Critical patent/CN106848549A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/0006Particular feeding systems
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10Resonant antennas

Abstract

The invention discloses a kind of dual polarized antenna array element, the dual polarized antenna array element includes feeder pillar, radiation arm and balun, balun is provided with four through holes, the feeder pillar is fixed in the through hole that balun is set by feeding set, the feeder pillar is the different many pitch circle metal columns of thickness, feeder pillar is L-shaped, feeder pillar is fixedly connected with the radiation arm, radiation arm is arranged on the end face along balun cavity upward direction, the radiation arm is four and is not in contact with each other, four lead to the hole site of four radiation arms and balun are corresponding, multiple arcs gap is provided with each radiation arm, every arc shaped slits length is the 1/6 of special frequency channel corresponding wavelength, gap width is the 1/100 of whole bandwidth centre frequency corresponding wavelength.Bay of the invention, with high-gain in frequency range, standing-wave ratio is small, the features such as impedance bandwidth is up to 60%, and higher mode during feed can be avoided to produce, and reduces aerial loss, lifts radiation efficiency.

Description

A kind of dual polarized antenna array element
Technical field
The present invention relates to antenna technical field, more particularly to a kind of dual polarized antenna array element.
Background technology
It is existing cover DCS, PCS and TDD-LTE, in FDD-LTE standards in the dual polarized antenna array element of contained frequency range, day The standing-wave ratio of linear array unit cannot all cover required frequency range.Universal working frequency range bandwidth is so greatly limited 30% or so The application scenarios of antenna are made, and increased the cost of engineering.And some dual polarized antennas, although its impedance bandwidth meets The requirement of required frequency range, but due to the working frequency range of ultra-wide, cause its radiance difference in whole working frequency range larger, and And, preferable impedance bandwidth also simply close to 45%, for example:Application No. 201010581310.9, structure graph is Fig. 1 institutes Show,, when VSWR (standing-wave ratio) is less than or equal to 1.4, impedance width is close to 45% for it.In DCS frequency ranges, the array element of dual polarized antenna Horizontal plane half power lobe width meet 65 ± 6 °, and in TDD-LTE frequency ranges, its horizontal plane half power lobe width is but Less than 58 °.The seamless coverage of mobile communication requirement cannot be so realized, so as to cause signal to cover poor, generally existing gain The larger problem of difference wide with horizontal valve.
The content of the invention
In view of this, a kind of dual polarized antenna array element of the invention, with frequency range high-gain, standing-wave ratio is small, horizontal ripple ripple Valve is wide, the features such as impedance bandwidth is big, and higher mode during feed can be avoided to produce, and reduces the loss of antenna.
A kind of dual polarized antenna array element, the dual polarized antenna array element includes feeder pillar, radiation arm and balun, and balun is opened There are four through holes, the feeder pillar is fixed in the through hole that balun is set by feeding set, and the feeder pillar is that thickness is different Many pitch circle metal columns, feeder pillar is L-shaped, and feeder pillar is fixedly connected with the radiation arm, radiation arm be arranged on along balun cavity to On the end face in upper direction, the radiation arm is four and to be not in contact with each other, four radiation arms and four lead to the hole site pair of balun Should, multiple arcs gap is provided with each radiation arm, every arc shaped slits length is the 1/6 of special frequency channel corresponding wavelength, gap Width is the 1/100 of whole bandwidth centre frequency corresponding wavelength.
Preferably, at least three different length arc hollow out gaps are provided with described each radiation arm.
Preferably, five different length arc hollow out gaps are provided with described each radiation arm, from outside to inside five gaps Length is followed successively by:15.6mm、21.5mm、27.2mm、25.2mm、19.7mm;Width is:1.3mm.
Preferably, the special frequency channel be DCS, PCS and TDD-LTE, contained frequency range in FDD-LTE standards.
Preferably, described two diagonal radiation arms close 1/2, the 1/4 of a height of band wavelength of balun of a length of frequency range corresponding wavelength.
Preferably, in the end face of balun upward direction, four radiation arms separate the radiation arm array distribution by cross crotch, The radiation arm is integrated with balun die casting, and radiation arm is metal and is made with balun.
Preferably, the feed set is POM insulating materials.
Preferably, two feeder pillar be two kinds of different sizes highly so that two L-type feeder pillars transverse direction cylinder antarafacial is vertical Intersect.
Preferably, the feeder pillar is connected with radiation arm by being welded and fixed.
Preferably, the balun of the through hole for being fitted with two feeder pillars in the balun through hole extends downwardly out two fixing ends, uses In the fixed installation array element.
The beneficial effects of the present invention are:It is the 1/ of special frequency channel corresponding wavelength by being provided with gap length on radiation arm 6, gap width for whole bandwidth centre frequency corresponding wavelength 1/100 multiple arcs gap so that 2G DCS, PCS and In TDD-LTE, FDD-LTE standard contained band gain >=8.4dBi, DCS, PCS and TDD-LTE, FDD-LTE systems in 2G In formula in contained frequency range, 69 ° >=horizontal beam valve is wide >=and 64 °, in the range of frequency 1.6179-3.0300GHz, standing-wave ratio is all Below 1.5;The gap of different length is etched on radiation arm sheet metal, so as to form different resonant frequencies, each resonance is frequently Rate is coupled, so as to form the relative impedances bandwidth more than 60%;By the round metal feeder pillar using different thicknesses, generation For conventional metal feed tab, the generation of higher modes when can so avoid feeding reduces aerial loss, lifting radiation effect Rate;Feeder pillar uses welding manner with radiation arm, it is to avoid excessive fixture is used, so as to reduce the complexity and product of assembling Cost.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, embodiment will be described below needed for be used Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, general for this area For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of broad band dual-polarization antenna unit embodiment schematic diagram;
Fig. 2 is the obliquely downward view of the three-dimensional view of dual polarized antenna array element embodiment;
Fig. 3 is the oblique upper view of the three-dimensional view of dual polarized antenna array element embodiment;
Fig. 4 is the top view of dual polarized antenna array element embodiment;
Fig. 5 is the front view of dual polarized antenna array element embodiment;
Fig. 6 is that dual polarized antenna array element embodiment feeds view;
Fig. 7 is dual polarized antenna array element embodiment feeder pillar installation diagram;
Fig. 8 is standing-wave ratio figure;
Fig. 9 is gain diagram;
Reference
The balun of 1 radiation arm 2
The 3 horizontal gaps of feeder pillar 4
The through hole of 5 fixing end 6
The feed set of 7 feeder pillar 8
10 upper surfaces
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to the scope of protection of the invention.
It should be appreciated that when using in this specification and in the appended claims, term " including " and "comprising" instruction The presence of described feature, entirety, step, operation, element and/or component, but it is not precluded from one or more of the other feature, whole The presence or addition of body, step, operation, element, component and/or its set.
It will be further appreciated that, the term "and/or" used in description of the invention and appended claims is Refer to any combinations of one or more in the associated item listed and be possible to combination, and including these combinations.
Fig. 2 and Fig. 3 is refer to, Fig. 4, Fig. 5, Fig. 6, Fig. 7, dual polarized antenna array element include:Feeder pillar 7, radiation arm 1 with And balun 2, balun 2 is provided with and is evenly arranged with four symmetrical two-by-two through holes 6, and two feeder pillars 7 for being used to feed are same with balun 2 Two through holes 6 of side are fixed by feeding set 8, and the feeder pillar 7 is the different many pitch circle metal columns of thickness, by using different The round metal feeder pillar 7 of thickness, instead of the metal feed tab commonly used, the generation of higher mode when can so avoid feeding subtracts The loss of miniature antenna, lifts radiation efficiency;Feeder pillar 7 is L-shaped, and feeder pillar 7 is fixedly connected with the radiation arm 1, and radiation arm 1 sets Put on along the end face of the cavity upward direction of balun 2, the radiation arm 1 is four and to be not in contact with each other, four radiation arms 1 with 2 four position of through hole 6 correspondences of balun, are provided with multiple arcs gap 4 on each radiation arm 1, every length of arc shaped slits 4 is specific The 1/6 of frequency range corresponding wavelength, the width of gap 4 is the 1/100 of whole bandwidth centre frequency corresponding wavelength.
Specifically, special frequency channel be DCS, PCS and TDD-LTE, contained frequency range in FDD-LTE standards, wavelength is also Wavelength corresponding to contained frequency range.Centre frequency is the centre frequency of whole bandwidth, is defined by centre frequency.By in radiation It is the 1/6 of special frequency channel corresponding wavelength that the length of gap 4 is provided with arm 1, and the width of gap 4 is whole bandwidth centre frequency corresponding wavelength 1/100 multiple arcs gap 4, according to Fig. 8 and Fig. 9 can be seen that by Fig. 8 dark color color ripple as a example by, in frequency In the range of 1.6153-3.0300GHz, all below 1.5, up to 60%, this is due to radiation arm 1 to impedance relative bandwidth to standing-wave ratio The gap 4 of different length is etched on sheet metal, so as to form different resonant frequencies, is coupled between each resonant frequency, so that shape Into the relative impedances bandwidth more than 60%.Fig. 9 is that dual polarized antenna array element is 1.7GHz, 2.2GHz, 2.7GHz in frequency Gain diagram, as seen from the figure, it is the 1/6 of special frequency channel corresponding wavelength that the length of gap 4 is provided with radiation arm 1, and the width of gap 4 is The multiple arcs gap 4 of the 1/100 of whole bandwidth centre frequency corresponding wavelength so that DCS, PCS and TDD-LTE in 2G, More than 96%, contained band gain is all higher than being equal to 8.4dBi, and 64 °≤horizontal beam valve radiation efficiency in FDD-LTE standards It is wide≤69 °, the slow wave characteristic of antenna, it is ensured that uniformity of the antenna in whole working frequency range internal antenna antenna pattern.
Specifically, with reference to Fig. 5, the height of balun 2 is the 1/4 of frequency range corresponding wavelength, and balun 2 is set to the cuboid with chamfering Structure, can cuboid top separately have deep cross gap 4 by the upper part of cuboid be separated into four it is just the same Column, form four columns and lower end connects into a vertical structure for entirety, and four centers of column, be provided with Corresponding four circles run through through hole 6.Fixing end 5 is extended in lower section near the position of through hole 6 of the homonymy of balun 2, for fixing Whole balun 2.Fixing end 5 is integrally formed with balun 2, it is also possible to by weld by fixing end 5 and balun 2 connect into one it is whole Body.Fixing end 5 is the cylinder of hollow via-hole 6, and the cross section of hollow via-hole 6 is circle, through hole 6 of the round diameter less than balun 2 Through hole 6 on diameter, with balun 2 is concentric circles.The lower end of fixing end 5 is provided with installation portion, and being connected installation with the external world fixes.
Specifically, with reference to Fig. 6, setting two feeder pillars 7 in the through hole 6 of balun 2, two feeder pillars 7 are that two kinds of height are different, The bottom of feeder pillar 7 is fitted close with the hollow circular through hole 6 of fixing end 5, plays a part of the one end of fixed feeder pillar 7, two feedbacks Electric post 7 extends transversely out horizontal feeder pillar 73, and feeder pillar 7 is the different many pitch circle metal columns of thickness, by using different The round metal feeder pillar 7 of thickness, instead of commonly use metal feed tab, can so avoid feed when higher modes generation, Reduce the loss of antenna;Feeder pillar 7 constitutes the L-type of feeder pillar 7 with horizontal feeder pillar 73, due to two feeder pillars 7 height not Together, two horizontal feeder pillars 73 are antarafacial square crossing, are not contacted.Feed can also use easy welding metal sheet.
Specifically, with reference to Fig. 4, four are separately installed with the upper surface 10 of balun 2, that is, four upper surfaces of column 10 Individual radiation arm 1, four arrays of radiation arm 1 are arranged on four end faces of column, and four radiation arms 1 are separated by cross crotch, two pairs Angle radiation arm 1 closes λ/2 of a length of frequency range corresponding wavelength, and radiation arm 1 is integrally formed with balun 2 by die casting, radiation arm 1 and balun 2 are metal is made.Radiation arm 1 is sheet metal, and the structure of gap 4, gap 4 at least three are provided with each metal radiation piece Bar, illustrates that five arc shaped slits 4 in figure, five length of gap 4 are followed successively by from outside to inside:15.6mm、21.5mm、 27.2mm、25.2mm、19.7mm;Width is:1.3mm.Gap can be hollow out gap, can be bar shaped hollow out gap 4, may be used also Think small square and small round gap etc..For the working frequency range of extended antenna, the gap 4 opened in sheet metal oscillator arms counts Mesh, generally requires more than 3, and the number of gap 4 of embodiment is 5, and the length of every can be different.For hollow out gap 4, every size one band frequency of correspondence in gap 4, the length of gap 4 is about λ/6 of corresponding band, and width is about whole bandwidth λ/100 of centre frequency, by opening a plurality of gap 4, reduce surface electromagnetic wave phase velocity, to reach 60% impedance relative bandwidth, Two kinds of oscillators of polarization, because of the phase difference of electric current on each polarized radiation arm 1, it is 90 ° to differ, so as to have between two kinds of polarization higher Isolation.
Specifically, with reference to Fig. 7, the feed for fixing feeder pillar 7 covers 8 and is arranged in the middle of feeder pillar 7 and the through hole 6 of balun 2, Stability of the feeder pillar 7 in the through hole 6 of balun 2 can be improved, feed set 8 is the macromolecular material of an insulation, is specially insulated POM covers, and while feed set 8 fixes feeder pillar 7, while feeder pillar 7 is separated with balun 2, prevents feed short circuit.
Embodiments described above is only schematical, and the embodiment of the present invention can according to actual needs carry out order Adjust, merge and delete.
Embodiment is described in detail to this programme, and specific case used herein is to structural principle of the invention And implementation method is set forth, above example is only intended to help and understands the method for the present invention and its core concept;Meanwhile, For those of ordinary skill in the art, according to thought of the invention, have change in specific embodiments and applications Become part, in sum, this specification content should not be construed as limiting the invention.

Claims (10)

1. a kind of dual polarized antenna array element, it is characterised in that:The dual polarized antenna array element includes feeder pillar, radiation arm and bar Human relations, balun is provided with four through holes, and the feeder pillar is fixed in the through hole that balun is set by feeding set, and the feeder pillar is thick Thin different many pitch circle metal columns, feeder pillar is L-shaped, and feeder pillar is fixedly connected with the radiation arm, and radiation arm is arranged on along bar On the end face of human relations cavity upward direction, the radiation arm is four and is not in contact with each other, and four radiation arms lead to for four with balun Hole site correspondence, is provided with multiple arcs gap on each radiation arm, every arc shaped slits length is special frequency channel corresponding wavelength 1/6, gap width is the 1/100 of whole bandwidth centre frequency corresponding wavelength.
2. bay as claimed in claim 1, it is characterised in that:At least three different length are provided with described each radiation arm Degree arc hollow out gap.
3. bay as claimed in claim 1, it is characterised in that:Five different length arcs are provided with described each radiation arm Shape hollow out gap, from outside to inside five gap lengths be followed successively by:15.6mm、21.5mm、27.2mm、25.2mm、19.7mm;Width For:1.3mm.
4. bay as claimed in claim 1, it is characterised in that:The special frequency channel be DCS, PCS and TDD-LTE, Contained frequency range in FDD-LTE standards.
5. bay as claimed in claim 1, it is characterised in that:The two diagonal radiation arm closes a length of frequency range corresponding wavelength 1/2, the 1/4 of a height of band wavelength of balun.
6. bay as claimed in claim 1, it is characterised in that:The radiation arm array distribution is in balun upward direction End face, four radiation arms are separated by cross crotch, and the radiation arm is integrated with balun die casting, and radiation arm is metal system with balun Into.
7. bay as claimed in claim 1, it is characterised in that:The feed set is POM insulating materials.
8. bay as claimed in claim 1, it is characterised in that:Two feeder pillar highly, makes for two kinds of different sizes Obtain the transverse direction cylinder antarafacial square crossing of two L-type feeder pillars.
9. bay as claimed in claim 1, it is characterised in that:The feeder pillar is with radiation arm by being welded and fixed phase Even.
10. bay as claimed in claim 1, it is characterised in that:The logical of two feeder pillars is fitted with the balun through hole The balun in hole extends downwardly out two fixing ends, for fixedly mounting the array element.
CN201710154044.3A 2017-03-15 2017-03-15 A kind of dual polarized antenna array element Pending CN106848549A (en)

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CN201710154044.3A CN106848549A (en) 2017-03-15 2017-03-15 A kind of dual polarized antenna array element

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110752438A (en) * 2019-11-05 2020-02-04 武汉虹信通信技术有限责任公司 Dual-polarization FAD radiating element
CN110752432A (en) * 2018-07-23 2020-02-04 京信通信技术(广州)有限公司 Half-coupling feed low-frequency radiating element and multi-system co-body antenna
CN111463572A (en) * 2019-12-18 2020-07-28 瑞声科技(新加坡)有限公司 Antenna
CN111934090A (en) * 2020-06-30 2020-11-13 西安电子科技大学 Dual-port dual-polarized filter antenna for realizing miniaturization of radiation patch slow wave and application

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110752432A (en) * 2018-07-23 2020-02-04 京信通信技术(广州)有限公司 Half-coupling feed low-frequency radiating element and multi-system co-body antenna
CN110752438A (en) * 2019-11-05 2020-02-04 武汉虹信通信技术有限责任公司 Dual-polarization FAD radiating element
CN110752438B (en) * 2019-11-05 2022-04-19 中信科移动通信技术股份有限公司 Dual-polarization FAD radiating element
CN111463572A (en) * 2019-12-18 2020-07-28 瑞声科技(新加坡)有限公司 Antenna
CN111934090A (en) * 2020-06-30 2020-11-13 西安电子科技大学 Dual-port dual-polarized filter antenna for realizing miniaturization of radiation patch slow wave and application

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