CN105789871A - Low-profile planar dipole antenna suitable for 4G LTE communication - Google Patents
Low-profile planar dipole antenna suitable for 4G LTE communication Download PDFInfo
- Publication number
- CN105789871A CN105789871A CN201610136135.XA CN201610136135A CN105789871A CN 105789871 A CN105789871 A CN 105789871A CN 201610136135 A CN201610136135 A CN 201610136135A CN 105789871 A CN105789871 A CN 105789871A
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- metal
- antenna
- dipole antenna
- reflecting plate
- square medium
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
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- Aerials With Secondary Devices (AREA)
Abstract
The invention provides a low-profile planar dipole antenna suitable for 4G LTE communication. Traditional dual monopole antennas are deformed; the part between dipoles is similar to a radiation form of a Vivadi antenna; a reflecting back cavity is placed at the lower part of the planar dipole antenna; and a frequency selectivity surface reflecting plate is added between the reflecting back cavity and the planar dipole antenna. According to the low-profile planar dipole antenna suitable for 4G LTE communication, the antenna gain can be significantly improved when unidirectional radiation is achieved; the gain of the antenna at a high frequency is significantly improved; and the antenna keeps good beam convergence and relatively high gain, front-to-back ratio and cross polarization ratio characteristics within a 4G LTE communication band (700MHz-3200MHz).
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of linear polarization plane dipole sky being applied to 4G mobile communication
Line.
Background technology
Along with people are more and more higher to the demand of mobile communication professional ability, on the basis of conventional 2G, 3G, as standard
The LTE band of 4G has started to put it into commercial operation；From the point of view of the angle of operator, for reducing investment outlay and considering follow-up the most real
Existing extendible capacity, compatibility, multisystem, multi-standard coexist and increasingly become a kind of trend.So to antenna for base station
It is also proposed higher requirement, for meeting the frequency of different systems, 700,1710, the ultra-wideband such as 2690MHZ frequency range
Band antenna for base station is extensively proposed and is applied；Meanwhile, broadband the also contributing to of antenna for base station reduces mobile communication
Equipment, reduces antenna amount, and reduces installation, the quantities safeguarded, thus decrease the operation cost of each operator,
And antenna for base station to be realized is broadband, first have to face is exactly that the bandwidth of the radiating element as its core component expands
Exhibition problem, how in whole broadband frequency band, keep higher gain, wave beam convergence uniformity, good before and after bit
Property and high cross polarization ratio are no small challenges.
Document 1 " Shi-Gang Zhou, Member, IEEE, and Jian-Ying Li, " Low-Profile and Wideband
Antenna”,IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS,VOL.10,
2011, Pages:(373-376) " have employed the technology of feed microstrip line broadening electrode couple sub antenna bandwidth, but it is at frequency
In band, change in gain is bigger.
Document 2 " S.W.Qu, J.L.Li, Q.Xue, and C.H.Chan, " Wideband cavity-backed bowtie
antenna with pattern improvement,”IEEE Trans.Antennas Propag.,vol.56,no.12,pp.
3850 3854, Dec.2008. " have employed microstrip balun feed, and employ circular reflection back of the body chamber.But its antenna standing wave
The 4G beamwidth of antenna cannot be met, and its maximum gain is relatively low at high band.
Document 3 " T.G.Ma and S.K.Jeng, " A printed dipole antenna with tapered slot feed for
ultrawide-band applications,”IEEE Trans.Antennas Propag.,vol.53,no.11,pp.3833–3836,
Nov.2005. " in, antenna transmits energy to two microband pastes being stacked with by SMA head and feed microstrip line
On, the beamwidth of antenna meets requirement, but the method is it cannot be guaranteed that the one-way radiation of antenna, so antenna gain is relatively low.
In sum, the higher gain in the case of existing document fails to propose effectively to realize broader bandwidth, wave beam convergence
Linear polarized antenna.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of plane dipole ultra-wideband antenna, have high-gain,
Ratio characteristic and the feature of high cross polarization ratio before and after wave beam convergence is consistent, good, it is possible to meet 4G LTE antenna band
The requirement of gain in width and bandwidth.
The technical solution adopted for the present invention to solve the technical problems is: include plane dipole antenna, frequency selectivity
Surface reflecting plate and metallic reflection back of the body chamber.
Described plane dipole antenna include circular metal coupled patch, square medium substrate, microstrip transmission line,
Cylindrical metal post, sub-miniature A connector and two panels oval metal paster；Described two panels oval metal paster is close to
A number square medium substrate lower surface, and two panels oval metal paster do not connects；On a number square medium substrate
Surface is glued with circular metal coupled patch, radially connected microstrip transmission line one end of circular metal coupled patch, micro-strip
Transmission line other end connecting cylinder shape metal column, cylindrical metal post passes a square medium substrate and a piece of ellipse
Metal patch, connects sub-miniature A connector；
Described Compact frequency selective surface reflecting plate includes No. two square medium substrates and some metal patches, metal patch
Equidistantly periodic arrangement is at No. two square medium substrate upper surfaces, and No. two square medium substrates are just to sub-miniature A connector
Position has through hole, and through hole is not covered by metal patch；
Described metallic reflection back of the body chamber includes bottom reflecting plate and sidepiece metallic plate, and SMA is just connect by bottom reflecting plate
Head has through hole；Sidepiece metallic plate is enclosed in the surrounding of bottom reflecting plate upper surface, plane dipole antenna and frequency choosing
Selecting property surface reflecting plate is fixed in the space that bottom reflecting plate and sidepiece metallic plate enclose, plane dipole antenna and frequency
The geometric center of rate selective surface's reflecting plate is projected in the geometric center of bottom reflecting plate.
The invention has the beneficial effects as follows: bottom linear polarization electrode couple 4G LTE antenna, add metallic reflection back of the body chamber,
Antenna gain can be significantly improved while realizing one-way radiation, and add FSS reflecting surface in-between, can make
Antenna significantly improves at high-frequency gain, in conjunction with above two reflection board structure, so that antenna is at 4G LTE communication frequency
In section, (700MHz-3200MHz) keeps good wave beam convergence and higher gain, front and back ratio, cross polarization
Ratio characteristic.
Accompanying drawing explanation
Fig. 1 is electrode couple sub antenna top view of the present invention.
Fig. 2 is electrode couple sub antenna entirety profile of the present invention.
Fig. 3 is electrode couple sub antenna FSS catoptric arrangement of the present invention.
Fig. 4 is electrode couple sub antenna metal backing cavity reflection structure of the present invention.
Fig. 5 is the standing wave VSWR of 4G LTE antenna of the present invention.
Fig. 6 is the antenna pattern at 700MHz frequency of 4G LTE antenna of the present invention.
Fig. 7 is the antenna pattern at 1200MHz frequency of 4G LTE antenna of the present invention.
Fig. 8 is the antenna pattern at 1700MHz frequency of 4G LTE antenna of the present invention.
Fig. 9 is the antenna pattern at 2200MHz frequency of 4G LTE antenna of the present invention.
Figure 10 is the antenna pattern at 2700MHz frequency of 4G LTE antenna of the present invention.
Figure 11 is the antenna pattern at 3200MHz frequency of 4G LTE antenna of the present invention.
Figure 12 is that the greatest irradiation directive gain of 4G LTE antenna of the present invention is with frequency variation curve.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings, and the present invention includes but are not limited to following embodiment.
Super wide band plane dipole antenna of the present invention is characterized in that, is on the one hand become by traditional electrode couple sub antenna
Shape, between dipole, part is similar to the forms of radiation of Vivadi antenna, and second aspect is under plane dipole antenna
A reflection back of the body chamber is placed by side, and the third aspect is to add a FSS (Frequency between reflection back of the body chamber and antenna
selective surface).In terms of these three, reach broadening aerial radiation bandwidth, improve antenna whole frequency band interior orientation
The purpose of gain.
The present invention mainly comprises three major parts: plane dipole antenna, Compact frequency selective surface (FSS) reflect
Plate, metallic reflection back of the body chamber.These three part erection sequence from top to bottom is respectively plane dipole antenna-frequency and selects
Property surface (FSS) reflecting plate-metallic reflection back of the body chamber, their center is all on same vertical line.
Plane dipole antenna is by 1, square medium substrate 2 of circular metal coupled patch, microstrip transmission line 3, circle
Cylindricality metal column the 4, first oval metal paster the 5, second oval metal paster 6, sub-miniature A connector 7 form.
Number square medium substrate 2 lower surface is glued with the first oval metal paster 5 and the second oval metal paster 6,
First oval metal paster 5 does not mutually connect with the second oval metal paster 6.On a number square medium substrate 2
Surface is glued with circular metal coupled patch 1, radially connected microstrip transmission line 3 one end of circular metal coupled patch 1,
Microstrip transmission line 3 other end connecting cylinder shape metal column 4, cylindrical metal post 4 is through a square medium substrate 2
With the second oval metal paster 6, connect sub-miniature A connector 7.The corner of a number square medium substrate 2 has logical
Hole 10.
Compact frequency selective surface (FSS) reflecting plate by No. two square medium substrates 8 and etc. at a distance of periodic intervals arrange
The metal patch 9 being listed in No. two square medium substrate 8 upper surfaces forms.The wherein middle part of No. two square medium substrates 8
Having through hole 13 (through hole must not be covered by metal patch), lead to the hole site is just to sub-miniature A connector 7.No. two square media
Substrate 8 four jiaos has through hole 10, position just through hole 10 to a square medium substrate 2.
Metallic reflection back of the body chamber is made up of with sidepiece metallic plate 12 bottom reflecting plate, and bottom reflecting plate has through hole 14,
Lead to the hole site is just to sub-miniature A connector 7.Sidepiece metallic plate 12 is enclosed in the surrounding of bottom reflecting plate upper surface, and plane is even
Pole sub antenna and Compact frequency selective surface (FSS) reflecting plate are placed in the sky that bottom reflecting plate encloses with sidepiece metallic plate 12
In, and support column is through a square medium substrate 2 and the through hole 10 of No. two square medium substrates 8 four jiaos, fixing
On bottom reflecting plate.
In the present embodiment, center of antenna frequency is 2000MHz, and wherein a square medium substrate 2 uses dielectric constant
εrThe material of=2.2, sole length w be 220.0mm, highly h be 1.0mm；It is close to the metal patch 1 above it
For circle, the radius R1 of metal patch is 16.5mm, number square medium substrate of the geometric center distance of metal patch
Geometric center 20.4mm of 2；One end of microstrip transmission line 3 is radially connected with circular metal patch 1, other end distance
Geometric center 31.6mm of a number square medium substrate 2；Cylindrical metal post 4 connects with upper strata microstrip line 3, distance
Geometric center 30.6mm of a number square medium substrate 2, and through a square medium substrate 2 and sub-miniature A connector 7
It is connected；It is close to minor axis length 34.0mm of oval metal paster 5,6 below square medium substrate 2, length
The ratio of axle is 1.2, and between oval metal paster 5,6, gap is at a distance of 0.6mm, square medium substrate 2 distance
The position of edge 3.0mm is equipped with four through holes 10 of radius R2=1.25mm.
No. two square medium substrates 8 use permittivity εrThe material of=4.4, its sole length w is 220.0mm,
Highly h1 is 1.0mm, is 33.0mm with a square medium substrate 2 apart from h2, is close to the some gold above it
It is square for belonging to paster 9, and length of side w3 is as 14.0mm, and the spacing between each metal patch 9 is 24.0mm,
On No. two square medium substrates 8, the position size of through hole 10 is identical with on square medium substrate 2, square medium substrate
Having through hole 13 on 8, radius R3 is 6.0mm, the square medium substrate 8 of the geometric center distance of through hole 13 two
Geometric center 30.6mm.
Length of side w4 of the bottom reflecting plate in metallic reflection back of the body chamber 12 is 227.0mm, with the distance of square medium substrate 2
H3 is 61.0mm, and sidepiece metallic walls height h4 is 83.5mm, and the metallic reflection back of the body has through hole 14 bottom chamber 12,
Radius R4 is 6.0mm, geometric distance center 30.6mm.Structure is as shown in Fig. 1,2,3 and Fig. 4.The present invention has
Body performance as shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, comparing result just with have
Benefit effect described by consistent.
Claims (1)
1. it is applicable to a 4G LTE communication low-section plane dipole antenna, selects including plane dipole antenna, frequency
Property surface reflecting plate and metallic reflection the back of the body chamber, it is characterised in that: described plane dipole antenna includes circular metal
Coupled patch, square medium substrate, microstrip transmission line, cylindrical metal post, sub-miniature A connector and two panels are ellipse
Circular metal patch；Described two panels oval metal paster is close to a square medium substrate lower surface, and two
Sheet oval metal paster does not connects；A number square medium substrate upper surface is glued with circular metal coupling patch
Sheet, radially connected microstrip transmission line one end of circular metal coupled patch, microstrip transmission line other end connecting cylinder shape
Metal column, cylindrical metal post passes a square medium substrate and a piece of oval metal paster, connects SMA
Joint；Described Compact frequency selective surface reflecting plate includes No. two square medium substrates and some metal patches, metal
The equidistant periodic arrangement of paster is at No. two square medium substrate upper surfaces, and No. two square medium substrates are just to SMA
The position of joint has through hole, and through hole is not covered by metal patch；Described metallic reflection back of the body chamber includes that bottom is anti-
Penetrate plate and sidepiece metallic plate, bottom reflecting plate just has through hole to sub-miniature A connector；Sidepiece metallic plate is enclosed in the end
The surrounding of portion's reflecting plate upper surface, plane dipole antenna and Compact frequency selective surface reflecting plate are fixed on bottom reflection
In the space that plate and sidepiece metallic plate enclose, in the geometry of plane dipole antenna and Compact frequency selective surface reflecting plate
The heart is projected in the geometric center of bottom reflecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610136135.XA CN105789871B (en) | 2016-03-10 | 2016-03-10 | One kind being suitable for 4G LTE communication low-section plane dipole antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610136135.XA CN105789871B (en) | 2016-03-10 | 2016-03-10 | One kind being suitable for 4G LTE communication low-section plane dipole antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105789871A true CN105789871A (en) | 2016-07-20 |
| CN105789871B CN105789871B (en) | 2019-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610136135.XA Active CN105789871B (en) | 2016-03-10 | 2016-03-10 | One kind being suitable for 4G LTE communication low-section plane dipole antenna |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108039576A (en) * | 2017-12-05 | 2018-05-15 | 北京航空航天大学 | A kind of Miniaturized double-frequency circular-polarization gap loop antenna |
| CN109273860A (en) * | 2018-10-18 | 2019-01-25 | 哈尔滨工业大学 | Transmission line type broadband active frequency-selective surfaces |
| CN111029759A (en) * | 2019-12-05 | 2020-04-17 | 南京理工大学 | SIW parallel feed array antenna with low cross polarization |
| CN111509370A (en) * | 2020-05-25 | 2020-08-07 | 中科智远信息科技有限公司 | Video wireless microwave transmission method and transmission device |
| WO2021038381A1 (en) * | 2019-08-26 | 2021-03-04 | Poynting Antennas (Pty) Limited | Broad band directional antenna |
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2016
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108039576A (en) * | 2017-12-05 | 2018-05-15 | 北京航空航天大学 | A kind of Miniaturized double-frequency circular-polarization gap loop antenna |
| CN109273860A (en) * | 2018-10-18 | 2019-01-25 | 哈尔滨工业大学 | Transmission line type broadband active frequency-selective surfaces |
| WO2021038381A1 (en) * | 2019-08-26 | 2021-03-04 | Poynting Antennas (Pty) Limited | Broad band directional antenna |
| US11862853B2 (en) | 2019-08-26 | 2024-01-02 | Poynting Antennas (Pty) Limited | Broad band directional antenna |
| CN111029759A (en) * | 2019-12-05 | 2020-04-17 | 南京理工大学 | SIW parallel feed array antenna with low cross polarization |
| CN111509370A (en) * | 2020-05-25 | 2020-08-07 | 中科智远信息科技有限公司 | Video wireless microwave transmission method and transmission device |
| CN111509370B (en) * | 2020-05-25 | 2024-06-07 | 中科智远信息科技有限公司 | Video wireless microwave transmission method and transmission device |
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| Publication number | Publication date |
|---|---|
| CN105789871B (en) | 2019-06-21 |
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