CN105789871B - One kind being suitable for 4G LTE communication low-section plane dipole antenna - Google Patents
One kind being suitable for 4G LTE communication low-section plane dipole antenna Download PDFInfo
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- CN105789871B CN105789871B CN201610136135.XA CN201610136135A CN105789871B CN 105789871 B CN105789871 B CN 105789871B CN 201610136135 A CN201610136135 A CN 201610136135A CN 105789871 B CN105789871 B CN 105789871B
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- antenna
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- reflecting plate
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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 present invention provides one kind to be suitable for 4G LTE communication low-section plane dipole antenna, traditional electrode couple sub-antenna is deformed, the forms of radiation of Vivadi antenna is partially similar between dipole, a reflection is placed below plane dipole antenna and carries on the back chamber, and a Compact frequency selective surface reflecting plate is added between reflection back chamber and plane dipole antenna.The present invention can significantly improve antenna gain while realizing one-way radiation, significantly improve antenna in high-frequency gain, so that antenna (700MHz-3200MHz) in 4G LTE communication frequency range keeps good wave beam convergence and higher gain, front and back ratio, cross polarization ratio characteristic.
Description
Technical field
The present invention relates to the communications fields, and in particular to a kind of linear polarization plane dipole day applied to 4G mobile communication
Line.
Background technique
Demand with people to mobile communication professional ability is higher and higher, on the basis of conventional 2G, 3G, as quasi- 4G
LTE band started to put it into commercial operation；From the perspective of operator, to reduce investment outlay and considering subsequent how to realize extendible capacity
Property, compatibility, multisystem, multi-standard coexist and have increasingly becomed a kind of trend.So antenna for base station also proposed higher
It is required that meet the frequency of different systems, 700,1710, the ultrabroad bands antenna for base station such as 2690MHZ frequency range proposed simultaneously extensively
And it applies；At the same time, antenna for base station is broadband also contributes to reducing mobile communication equipment, reduces antenna amount, and reduce peace
Dress, the project amount safeguarded, to reduce the operation cost of each operator, and will realize the broadband of antenna for base station, first have to
What is faced is exactly the bandwidth expansion problem of the radiating element as its core component, how in entire broadband frequency band, keep compared with
High-gain, wave beam convergence consistency, good front and back ratio characteristic and high cross polarization ratio are a 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 the technology of feed microstrip line broadening electrode couple sub-antenna bandwidth, but its gain in frequency band) " are used
It changes greatly.
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. " are fed using microstrip balun, and have used round reflection back chamber.But its antenna standing wave without
Method meets the 4G beamwidth of antenna, and its maximum gain is lower in 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,
Antenna transmits energy to two mutually with feed microstrip line by SMA in no.11, pp.3833-3836, Nov.2005. "
On the microband paste of stacking, the beamwidth of antenna is met the requirements, but this method cannot be guaranteed the one-way radiation of antenna, so antenna gain
It is lower.
In conclusion existing literature fails to propose effectively to realize higher gain in the case of broader bandwidth, wave beam convergence
Linear polarized antenna
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of plane dipole ultra-wideband antenna, have high-gain,
Wave beam restrains the characteristics of consistent, good front and back ratio characteristic and high cross polarization ratio, can satisfy 4G LTE antenna bandwidth and
The requirement of gain in bandwidth.
The technical solution adopted by the present invention to solve the technical problems is: including plane dipole antenna, frequency selectivity
Chamber is carried on the back in surface reflection plate and metallic reflection.
The plane dipole antenna include circular metal coupled patch, No.1 square medium substrate, microstrip transmission line,
Cylindrical metal column, sub-miniature A connector and two panels oval metal patch；The two panels oval metal patch is tightly attached to No.1 side
Shape medium substrate lower surface, and two panels oval metal patch is not connected to mutually；No.1 square medium substrate upper surface is glued with
Circular metal coupled patch, radially connected microstrip transmission line one end of circular metal coupled patch, the microstrip transmission line other end connect
Cylindrical metal column is connect, cylindrical metal column passes through No.1 square medium substrate and a piece of oval metal patch, and connection SMA connects
Head；
The Compact frequency selective surface reflecting plate includes No. two square medium substrates and several metal patches, metal patch
Equidistant periodic arrangement No. two square medium substrate upper surfaces, open by the position of No. two square medium substrate face sub-miniature A connectors
There is through-hole, and through-hole is not covered by metal patch；
The metallic reflection back chamber includes bottom reflecting plate and side metal plate, face sub-miniature A connector on bottom reflecting plate
It is provided with through-hole；Side metal plate is enclosed in the surrounding of bottom reflecting plate upper surface, plane dipole antenna and frequency selectivity table
Face reflecting plate is fixed in the space that bottom reflecting plate and side metal plate enclose, plane dipole antenna and frequency selectivity table
The geometric center of face reflecting plate is projected in the geometric center of bottom reflecting plate.
The beneficial effects of the present invention are: metallic reflection, which is added, in linear polarization electrode couple 4G LTE antenna bottom carries on the back chamber,
Antenna gain can be significantly improved while realizing one-way radiation, and FSS reflecting surface is added in-between, antenna can be made to exist
High-frequency gain significantly improves, and in conjunction with above two reflection board structure, can make antenna in 4G LTE communication frequency range
(700MHz-3200MHz) keeps good wave beam convergence and higher gain, front and back ratio, cross polarization ratio characteristic.
Detailed description of the invention
Fig. 1 is electrode couple sub-antenna top view of the present invention.
Fig. 2 is electrode couple sub-antenna entirety sectional view 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 back 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 point of 4G LTE antenna of the present invention.
Fig. 7 is the antenna pattern at 1200MHz frequency point of 4G LTE antenna of the present invention.
Fig. 8 is the antenna pattern at 1700MHz frequency point of 4G LTE antenna of the present invention.
Fig. 9 is the antenna pattern at 2200MHz frequency point of 4G LTE antenna of the present invention.
Figure 10 is the antenna pattern at 2700MHz frequency point of 4G LTE antenna of the present invention.
Figure 11 is the antenna pattern at 3200MHz frequency point of 4G LTE antenna of the present invention.
Figure 12 is the greatest irradiation direction gain of 4G LTE antenna of the present invention with frequency variation curve.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, and the present invention includes but are not limited to following implementations
Example.
On the one hand super wide band plane dipole antenna of the present invention is it is characterized in that, become traditional electrode couple sub-antenna
Shape is partially similar to the forms of radiation of Vivadi antenna between dipole, and second aspect is put below plane dipole antenna
A reflection back chamber is set, the third aspect is that a FSS (Frequency selective is added between reflection back chamber and antenna
surface).Reach broadening aerial radiation bandwidth in terms of these three, improves the purpose of the entire frequency band interior orientation gain of antenna.
The present invention mainly includes three major parts: plane dipole antenna, Compact frequency selective surface (FSS) reflecting plate,
Chamber is carried on the back in metallic reflection.The erection sequence of these three parts from top to bottom is respectively plane dipole antenna-Compact frequency selective surface
(FSS) chamber is carried on the back in reflecting plate-metallic reflection, their center is all in same vertical line.
Plane dipole antenna is by circular metal coupled patch 1, No.1 square medium substrate 2, microstrip transmission line 3, cylinder
Shape metal column 4, the first oval metal patch 5, the second oval metal patch 6, sub-miniature A connector 7 form.The rectangular medium base of No.1
2 lower surface of plate is glued with the first oval metal patch 5 and the second oval metal patch 6,5 He of the first oval metal patch
Second oval metal patch 6 is not connected to mutually.2 upper surface of No.1 square medium substrate is glued with circular metal coupled patch 1,
3 one end of radially connected microstrip transmission line of circular metal coupled patch 1,3 other end connecting cylinder shape metal column of microstrip transmission line
4, cylindrical metal column 4 passes through No.1 square medium substrate 2 and the second oval metal patch 6, connects sub-miniature A connector 7.No.1 side
The quadrangle of shape medium substrate 2 has through-hole 10.
Compact frequency selective surface (FSS) reflecting plate is by No. two square medium substrates 8 and waits at a distance of periodic intervals arrangement
Metal patch 9 No. two 8 upper surfaces of square medium substrate forms.Wherein the middle part of No. two square medium substrates 8 is provided with through-hole
13 (through-hole must not be covered by metal patch), lead to the hole site face sub-miniature A connector 7.No. two 8 four jiaos of square medium substrate have
Through-hole 10, the through-hole 10 of position face No.1 square medium substrate 2.
Metallic reflection back chamber is made of bottom reflecting plate and side metal plate 12, and through-hole 14 is provided on bottom reflecting plate, is led to
Hole site face sub-miniature A connector 7.Side metal plate 12 is enclosed in the surrounding of bottom reflecting plate upper surface, plane dipole antenna and
Compact frequency selective surface (FSS) reflecting plate is placed in the space that bottom reflecting plate and side metal plate 12 enclose, and support column is worn
The through-hole 10 for crossing No.1 square medium substrate 2 and No. two 8 four jiaos of square medium substrate, is fixed on bottom reflecting plate.
In the present embodiment, center of antenna frequency point is 2000MHz, and wherein No.1 square medium substrate 2 uses permittivity εr
=2.2 material, base length w are 220.0mm, and height h is 1.0mm；It is close to the metal patch 1 above it for circle, metal
The radius R1 of patch is 16.5mm, geometric center 20.4mm of the geometric center of metal patch apart from No.1 square medium substrate 2；
One end of microstrip transmission line 3 is connected with 1 radial direction of circular metal patch, in geometry of the other end apart from No.1 square medium substrate 2
Heart 31.6mm；Cylindrical metal column 4 connects with upper layer microstrip line 3, the geometric center apart from No.1 square medium substrate 2
30.6mm, and pass through No.1 square medium substrate 2 and be connected with sub-miniature A connector 7；It is tightly attached to the ellipse of 2 lower section of square medium substrate
The minor axis length 34.0mm of metal patch 5,6, ratio of semi-minor axis length 1.2, gap is apart between oval metal patch 5,6
0.6mm, position of the No.1 square medium substrate 2 apart from edge 3.0mm are equipped with four through-holes 10 of radius R2=1.25mm.
No. two square medium substrates 8 use permittivity εr=4.4 material, its base length w is 220.0mm, high
Degree h1 is 1.0mm, is 33.0mm with 2 distance h2 of No.1 square medium substrate, is close to several metal patches 9 above it for pros
Shape, side length w3 are that the spacing for 14.0mm, between each metal patch 9 is 24.0mm, through-hole in No. two square medium substrates 8
10 position size is identical as in square medium substrate 2, and through-hole 13 is provided in square medium substrate 8, and radius R3 is 6.0mm,
The geometric center 30.6mm of No. two square medium substrates 8 of geometric center distance of through-hole 13.
The side length w4 that the bottom reflecting plate of chamber 12 is carried on the back in metallic reflection is 227.0mm, is with 2 distance h3 of square medium substrate
61.0mm, side metallic walls height h4 are 83.5mm, and metallic reflection back 12 bottom of chamber is provided with through-hole 14, and radius R4 is 6.0mm, away from
From geometric center 30.6mm.Structure is as shown in Fig. 1,2,3 and Fig. 4.Specific performance of the present invention such as Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9,
Shown in Figure 10, Figure 11, Figure 12, comparing result just with it is consistent described in beneficial effect.
Claims (1)
1. one kind is suitable for 4G LTE communication low-section plane dipole antenna, including plane dipole antenna, frequency selectivity
Chamber is carried on the back in surface reflection plate and metallic reflection, it is characterised in that: the plane dipole antenna include circular metal coupled patch,
No.1 square medium substrate, microstrip transmission line, cylindrical metal column, sub-miniature A connector and two panels oval metal patch；Described two
Piece oval metal patch is tightly attached to No.1 square medium substrate lower surface, and two panels oval metal patch is not connected to mutually；
No.1 square medium substrate upper surface is glued with circular metal coupled patch, and the radially connected micro-strip of circular metal coupled patch passes
Defeated line one end, microstrip transmission line other end connecting cylinder shape metal column, cylindrical metal column pass through No.1 square medium substrate and
A piece of oval metal patch connects sub-miniature A connector；Two dipoles of two panels oval metal patch formation dipole antenna
Arm, sub-miniature A connector outside are connect with an arm of elliptic dipole, while using an arm of the elliptic dipole as micro-strip
The floor of transmission line；It is transmitted inside sub-miniature A connector by the micro-strip that cylindrical metal column passes through No.1 square medium substrate and upper layer
Line connection, is connected to a circular metal coupled patch in the end of microstrip transmission line, for coupling dipole antenna in addition
One arm；The Compact frequency selective surface reflecting plate includes No. two square medium substrates and several metal patches, metal patch
Equidistant periodic arrangement No. two square medium substrate upper surfaces, open by the position of No. two square medium substrate face sub-miniature A connectors
There is through-hole, and through-hole is not covered by metal patch；The metallic reflection back chamber includes bottom reflecting plate and side metal plate, bottom
Face sub-miniature A connector is provided with through-hole on portion's reflecting plate；Side metal plate is enclosed in the surrounding of bottom reflecting plate upper surface, planar dipole
Sub-antenna and Compact frequency selective surface reflecting plate are fixed in the space that bottom reflecting plate and side metal plate enclose, planar dipole
The geometric center of sub-antenna and Compact frequency selective surface reflecting plate 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 |
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| Publication Number | Publication Date |
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| CN105789871A CN105789871A (en) | 2016-07-20 |
| CN105789871B true CN105789871B (en) | 2019-06-21 |
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| CN201610136135.XA Active CN105789871B (en) | 2016-03-10 | 2016-03-10 | One kind being suitable for 4G LTE communication low-section plane dipole antenna |
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Families Citing this family (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 |
| CN109273860B (en) * | 2018-10-18 | 2020-11-13 | 哈尔滨工业大学 | Transmission line type broadband active frequency selective surface |
| 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 |
| 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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| CN1929203A (en) * | 2006-04-07 | 2007-03-14 | 中国科学技术大学 | Plane ultra-wide band antenna |
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| CN201430212Y (en) * | 2009-06-11 | 2010-03-24 | 北京邮电大学 | Doublet antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7973733B2 (en) * | 2003-04-25 | 2011-07-05 | Qualcomm Incorporated | Electromagnetically coupled end-fed elliptical dipole for ultra-wide band systems |
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| CN1132572A (en) * | 1993-09-02 | 1996-10-02 | 国际移动卫星组织 | Folding dipole antenna |
| CN1929203A (en) * | 2006-04-07 | 2007-03-14 | 中国科学技术大学 | Plane ultra-wide band antenna |
| CN101257147A (en) * | 2008-03-20 | 2008-09-03 | 上海交通大学 | Butterfly-shaped air microstrip aerial |
| CN201336363Y (en) * | 2009-01-19 | 2009-10-28 | 陕西特恩电子科技有限公司 | Wide frequency dipole symmetric antenna element |
| CN201430212Y (en) * | 2009-06-11 | 2010-03-24 | 北京邮电大学 | Doublet antenna |
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