CN107196039A - A kind of bandwidth expansion wide bandwidth base station antenna - Google Patents
A kind of bandwidth expansion wide bandwidth base station antenna Download PDFInfo
- Publication number
- CN107196039A CN107196039A CN201710311020.4A CN201710311020A CN107196039A CN 107196039 A CN107196039 A CN 107196039A CN 201710311020 A CN201710311020 A CN 201710311020A CN 107196039 A CN107196039 A CN 107196039A
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- Prior art keywords
- coupling unit
- base station
- bandwidth
- station antenna
- wide bandwidth
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- 230000008878 coupling Effects 0.000 claims abstract description 48
- 238000010168 coupling process Methods 0.000 claims abstract description 48
- 238000005859 coupling reaction Methods 0.000 claims abstract description 48
- 230000005855 radiation Effects 0.000 claims abstract description 27
- 230000010287 polarization Effects 0.000 claims abstract description 22
- 238000010276 construction Methods 0.000 claims abstract description 13
- 230000003071 parasitic effect Effects 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims abstract description 3
- 238000010586 diagram Methods 0.000 claims description 6
- 238000005388 cross polarization Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000036642 wellbeing Effects 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- 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
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a kind of bandwidth expansion wide bandwidth base station antenna, 1427 2690MHz frequency ranges can be completely covered in the impedance bandwidth and radiation bandwidth of the antenna, it is adaptable to IMT/2G/3G/LTE (4G) system.The antenna structure includes：Antenna radiator, the first coupling unit, the second coupling unit, the 3rd coupling unit, coaxial feeder and reflecting plate.The antenna radiator is fixed on the top of reflecting plate, including+45 ° of polarization oscillators, 45 ° of polarization oscillators, and microstrip feed line by the supporting construction of insulation.First coupling unit is fixed on the top of the lower section reflecting plate of antenna radiator by insulating supporting structure, including ring polygonized structure and parasitic patch, second coupling unit is four metal rectangular bars, it is fixed on the surrounding of the first coupling unit, 3rd coupling unit is an annulus, is fixed on by insulating supporting structure directly over antenna radiator, and the antenna has with roomy, structure is novel, the stable advantage of antenna pattern.
Description
Technical field
The present invention relates to moving communicating field, more particularly to a kind of applicable IMT/2G/3G/LTE (4G) GSM
Bandwidth expansion wide bandwidth base station antenna.
Background technology
With the rapid development of mobile communication technology, the exploitation of new frequency range are even more important, and Japan is by 1427-
1515MHz frequency ranges are used in IMT (ternational Mobile Telecommunications) service, and in Europe, 25 European Union member countries are supported 1415-
1515MHz is serviced for IMT, and center bin 1452-1492MHz is auctioned off to IMT services by Germany and Italy.France,
Ireland and Slovenia service in regulator of Cyprus consulting auction 1452-1492MHz to IMT.At this stage in
Just there is 2G, 3G, LTE (4G) system in state, and 2G systems use 1710-1550MHz, and 3G systems use frequency range 1550-2170MHz, LTE
(4G) system uses 2300-12690MHz, and Chinese wireless communication system has covered 1710-2690MHz frequency ranges at present.With shifting
The development of the dynamic communication technology, the demand of bandwidth is more and more important, and the use of different mobile systems takes different frequency ranges, same
If antenna, which can cover multiple system frequency bands, can reduce cost of manufacture, increase space utilization, increase economic well-being of workers and staff, exist bigger
Value.Therefore, the broad-band antenna of new design and installation covers 1427-1515MHz and 1710-2690MHz and supports IMT simultaneously simultaneously
Service and different GSMs, to obtain bigger economic benefit.
At present, wide bandwidth base station antenna can typically cover the bandwidth of 2G, 3G, LTE (4G) system, not have covering IMT
The bandwidth of service, if common antenna may operate in multiple communication systems, so as to reduce the number of antenna, realizes that communication is set
Standby miniaturization
The content of the invention
The invention aims to solve drawbacks described above of the prior art, there is provided a kind of bandwidth expansion wide bandwidth base station day
Line, the wide bandwidth base station antenna is that a kind of radiation gain is high, and the stable bandwidth expansion wide bandwidth base station antenna of directional diagram, the broadband base
Station antenna can realize 63% impedance bandwidth, cover 1427-2690MHz frequency range.
The purpose of the present invention can be reached by adopting the following technical scheme that：
A kind of bandwidth expansion wide bandwidth base station antenna, the wide bandwidth base station antenna includes antenna radiator 1, the first coupling unit
2nd, the second coupling unit 3, the 3rd coupling unit 4, feeder line 5, reflecting plate 6 and the supporting construction 7 of insulation,
Wherein, first coupling unit 2, the antenna radiator 1 and the 3rd coupling unit 4 pass through the branch
Support structure 7 is by closely to the top for being far in turn secured to the reflecting plate 6；
The antenna radiator 1 includes+45 ° of polarization oscillators, -45 ° of polarization oscillators and dielectric-slab 9, and+45 ° of polarization are shaken
Attached bag includes the first radiation arm 11A and the 3rd radiation arm 11C, and -45 ° of polarization oscillator includes the second radiation arm 11B and the 4th spoke
Arm 11D is penetrated, the feeder line 5 includes the first feeder line 5A and the second feeder line 5B, the first radiation arm 11A, second radiation arm
11B and the first feeder line 5A etches the upper surface of dielectric-slab 9, the 3rd radiation arm 11C, the 4th radiation arm 11D
The lower surface of dielectric-slab 9 is etched with the second feeder line 5B；
The first feeder line 5A and the second feeder line 5B are presented to+45 ° of polarization oscillators and -45 ° of polarization oscillators respectively
Electricity.
Further, first coupling unit 2 includes several parasitic patch 2A and ring polygonized structure 2B.
Further, the ring polygonized structure 2B cuts away four drift angles by ring square and formed, the ring polygon knot
Structure 2B respectively has two gaps, for being coupled with radiation arm, spread bandwidth in+45 ° of directions and -45 ° of directions.
Further, the ring polygonized structure 2B is 0.5 λ in +/- 45 ° of directions Breadth Maximum scopeL-1λL, wherein λL
For wide bandwidth base station antenna centre frequency 2.1GHz corresponding wavelength in free space.
Further, the parasitic patch 2A is spliced by three rectangles, on the inside of the ring polygonized structure 2B,
Horizontally and vertically respectively there are two, for being coupled with the ring polygonized structure 2B, spread bandwidth.
Further, the 3rd coupling unit 4 is a circular ring structure, positioned at the surface of the antenna radiator 1,
Return loss for improving the wideband extension antenna for base station.
Further, second coupling unit 3 is four metal rectangular bars, vertically stands on first coupling unit 2
Middle ring polygonized structure 2B surrounding, for improving directional diagram, reduces cross polarization, second coupling unit 3 not with it is described
Reflecting plate 6 is connected.
Further, the width range of the rectangular metal bar of second coupling unit 3 is 0.1 λL-0.3λL, wherein λLFor
Wide bandwidth base station antenna centre frequency 2.1GHz corresponding wavelength in free space.
Further, the supporting construction 7 is plastic column, the height of the supporting construction 7 by the antenna radiator 1 away from
Determined from a distance from the reflecting plate 6, altitude range is 0.1 λL-0.5λL, wherein λLFor the wide bandwidth base station antenna centre frequency
2.1GHz corresponding wavelength in free space.
The present invention has the following advantages and effect relative to prior art：
1st, 1427-2690MHz is completely covered in bandwidth of the present invention, is applicable not only to 2G/3G/LTE (4G) system and applies also for
IMT systems.
2nd, radiant body of the present invention has planar structure, makes simple.
3rd, the first coupling unit structure of the invention is simply compact, and extending bandwidth effect is good.
4th, the second coupling unit of the invention is disposed vertically, and is acted on the cross polarization for reducing directional diagram
5th, the 3rd coupling unit structure of the invention is simple, with good impedance matching effect.
6th, radiator structure of the present invention is novel, and coupling unit structure is simple, wide bandwidth, and directional diagram is stable, high gain.
Brief description of the drawings
Fig. 1 is the tomograph of the bandwidth expansion wide bandwidth base station antenna of the present invention；
Fig. 2 is the front view of the bandwidth expansion wide bandwidth base station antenna of the present invention；
Fig. 3 is the profile of the bandwidth expansion wide bandwidth base station antenna of the present invention；
Fig. 4 is the impedance bandwidth of the bandwidth expansion wide bandwidth base station antenna of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment
As shown in figure 1, including antenna radiator 1, first present embodiment discloses a kind of bandwidth expansion wide bandwidth base station antenna
Coupling unit 2, the second coupling unit 3, the 3rd coupling unit 4, feeder line 5, reflecting plate 6, and supporting construction 7.First coupling unit 2
The surface of reflecting plate 6 is fixed on by supporting construction 7, apart from 25mm, antenna radiator 1 is fixed on instead by supporting construction 7
The surface of plate 6 is penetrated, apart from 35mm.3rd coupling unit 4 is the surface that reflecting plate 6 is fixed on by supporting construction 7, distance
For 43mm.The supporting construction 7 is insulated plastic stock column.
Fig. 2 be bandwidth expansion wide bandwidth base station antenna front plan view, antenna radiator 1 include+45 ° polarization oscillators, -45 °
Polarize oscillator, dielectric-slab 9, the first feeder line 5A and the second feeder line 5B.
The antenna radiator 1 includes+45 ° of polarization oscillators, -45 ° of polarization oscillators and dielectric-slab 9, and+45 ° of polarization are shaken
Attached bag includes the first radiation arm 11A and the 3rd radiation arm 11C, and -45 ° of polarization oscillator includes the second radiation arm 11B and the 4th spoke
Penetrate arm 11D, the feeder line 5 include the first feeder line 5A and the second feeder line 5B, the first radiation arm 11A, the second radiation arm 11B and
First feeder line 5A etches the upper surface of dielectric-slab 9, the 3rd radiation arm 11C, the 4th radiation arm 11D and the second feeder line 5B erosions
The lower surface of dielectric-slab 9 is carved, dielectric-slab 9 is using high frequency sheet material R04350B, thickness 0.76mm, relative dielectric constant 3.45.
Antenna radiator 1 is planar structure, and dual polarization bandwidth 1710MHz-2690MHz can be achieved, and supports 2G/3G/LTE
(4G) system.
First coupling unit 2 includes an a parasitic patch 2A and ring polygonized structure 2B, wherein, ring polygonized structure 2B
It is that an a width of 13.7mm rings square cuts four drift angles and formed, ring square is to be subtracted by the length of side for 130mm square
The length of side is 100mm square, and the drift angle cut is a length of 39mm of waist isosceles right triangle, four drift angles of ring square
Vertical-horizontal direction is placed in, ring polygonized structure 2B respectively there are two 2mm cracks in+45 ° of directions and -45 ° of directions, can be very good
With radiation arm coupling, spread bandwidth makes bandwidth expand to 1500MHz from 1700MHz.Parasitic patch 2A spliced by three rectangles and
Into, respectively there are two positioned at horizontal vertical direction on the inside of ring polygon 2A, for being coupled with ring polygon 2B, spread bandwidth so that
Coupling is more violent, and frequency band is extended into 1427MHz so that antenna, which has, can be completely covered 1427-2690MHz.Wherein, ring
Polygonized structure 2B and parasitic patch 2A spacing 2mm.
3rd coupling unit 4 is an annulus, and cylindrical 14mm, inner circle 6mm are fixed by supporting construction 7 and be located at radiant body 1
Surface, the effect of the 3rd coupling unit 4 is so that the return loss of intermediate bands can be more than 15dB.
Second coupling unit 3 is a metal rectangular piece, vertically stands on the middle ring polygonized structure 2B's of the first coupling unit 2
Surrounding, second coupling unit 3 is not connected with reflecting plate 6.
Second coupling unit 3 is made up of four rectangular strips and vertically stands on the middle ring polygonized structure 2B's of the first coupling unit 2
Surrounding, for improving directional diagram, reduces cross polarization, the width 2mm of rectangular strip, and length is 22mm.
As shown in Fig. 2 being shaken respectively to+45 ° of polarization oscillators and -45 ° of polarization with the first feeder line 5A and the second feeder line 5B respectively
Son is fed, and 30dB isolation can be achieved.
As shown in figure 4, being the impedance bandwidth of the present embodiment, by Fig. 4 it may be concluded that the dual polarized antenna tool of the present invention
There is 1427-2690MHz impedance bandwidth, return loss reaches -15dB, IMT systems 1427-1515MHz and 1710- can be completely covered
2690MHz frequency ranges, and more than the isolation 30dB in the bandwidth, gain is in more than 5.5dBi.
This bandwidth expansion wide bandwidth base station antenna has structure novel, makes simple, bandwidth reaches, isolation is high, radiation direction
The features such as figure stabilization, high gain.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (9)
1. a kind of bandwidth expansion wide bandwidth base station antenna, it is characterised in that the wide bandwidth base station antenna include antenna radiator (1),
First coupling unit (2), the second coupling unit (3), the 3rd coupling unit (4), feeder line (5), reflecting plate (6) and the support of insulation
Structure (7),
Wherein, first coupling unit (2), the antenna radiator (1) and the 3rd coupling unit (4) are by described
Supporting construction (7) is by closely to the top for being far in turn secured to the reflecting plate (6)；
The antenna radiator (1) includes+45 ° of polarization oscillators, -45 ° of polarization oscillators and dielectric-slab (9), and+45 ° of polarization are shaken
Attached bag includes the first radiation arm (11A) and the 3rd radiation arm (11C), -45 ° of polarization oscillators include the second radiation arm (11B) and
4th radiation arm (11D), the feeder line (5) includes the first feeder line (5A) and the second feeder line (5B), first radiation arm
(11A), second radiation arm (11B) and first feeder line (5A) etch dielectric-slab (9) upper surface, the 3rd spoke
Penetrate arm (11C), the 4th radiation arm (11D) and second feeder line (5B) and etch dielectric-slab (9) lower surface；
First feeder line (5A) and second feeder line (5B) are presented to+45 ° of polarization oscillators and -45 ° of polarization oscillators respectively
Electricity.
2. a kind of bandwidth expansion wide bandwidth base station antenna according to claim 1, it is characterised in that first coupling unit
(2) several parasitic patch (2A) and ring polygonized structure (2B) are included.
3. a kind of bandwidth expansion wide bandwidth base station antenna according to claim 2, it is characterised in that the ring polygonized structure
(2B) cuts away four drift angles by ring square and formed, and the ring polygonized structure (2B) respectively has two in+45 ° of directions and -45 ° of directions
Individual gap, for being coupled with radiation arm, spread bandwidth.
4. a kind of bandwidth expansion wide bandwidth base station antenna according to claim 2, it is characterised in that the ring polygonized structure
(2B) is 0.5 λ in +/- 45 ° of directions Breadth Maximum scopeL-1λL, wherein λLExist for wide bandwidth base station antenna centre frequency 2.1GHz
Corresponding wavelength in free space.
5. a kind of bandwidth expansion wide bandwidth base station antenna according to claim 2, it is characterised in that the parasitic patch (2A) by
Three rectangles are spliced, on the inside of the ring polygonized structure (2B), both horizontally and vertically respectively there is two, use
Coupled in the ring polygonized structure (2B), spread bandwidth.
6. a kind of bandwidth expansion wide bandwidth base station antenna according to claim 1, it is characterised in that the 3rd coupling unit
(4) it is a circular ring structure, the surface positioned at the antenna radiator (1), for improving the wideband extension antenna for base station
Return loss.
7. a kind of bandwidth expansion wide bandwidth base station antenna according to claim 2, it is characterised in that second coupling unit
(3) it is four metal rectangular bars, vertically stands on the surrounding of the first coupling unit (2) middle ring polygonized structure (2B), be used for
Improve directional diagram, reduce cross polarization, second coupling unit (3) is not connected with the reflecting plate (6).
8. a kind of bandwidth expansion wide bandwidth base station antenna according to claim 7, it is characterised in that second coupling unit
(3) width range of rectangular metal bar is 0.1 λL-0.3λL, wherein λLExist for wide bandwidth base station antenna centre frequency 2.1GHz
Corresponding wavelength in free space.
9. a kind of bandwidth expansion wide bandwidth base station antenna according to claim 1, it is characterised in that the supporting construction (7)
For plastic column, the distance of the height of the supporting construction (7) by the antenna radiator (1) apart from the reflecting plate (6) is determined,
Altitude range is 0.1 λL-0.5λL, wherein λLFor wide bandwidth base station antenna centre frequency 2.1GHz corresponding ripples in free space
It is long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311020.4A CN107196039A (en) | 2017-05-05 | 2017-05-05 | A kind of bandwidth expansion wide bandwidth base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311020.4A CN107196039A (en) | 2017-05-05 | 2017-05-05 | A kind of bandwidth expansion wide bandwidth base station antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107196039A true CN107196039A (en) | 2017-09-22 |
Family
ID=59873118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710311020.4A Pending CN107196039A (en) | 2017-05-05 | 2017-05-05 | A kind of bandwidth expansion wide bandwidth base station antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107196039A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799886A (en) * | 2017-09-27 | 2018-03-13 | 华南理工大学 | A kind of new spread wideband antenna for base station |
| CN107834157A (en) * | 2017-11-07 | 2018-03-23 | 华南理工大学 | A kind of bandwidth spread wideband work shape antenna for base station |
| CN109904593A (en) * | 2019-02-27 | 2019-06-18 | 东南大学 | A kind of frequency band enhancing Bipolarization antenna for base station |
| CN110336126A (en) * | 2019-06-30 | 2019-10-15 | 瑞声科技(新加坡)有限公司 | Oscillator device and low profile antenna |
| CN110676579A (en) * | 2019-10-28 | 2020-01-10 | 华南理工大学 | Plane spread spectrum broadband base station antenna |
| CN110783698A (en) * | 2019-11-07 | 2020-02-11 | 武汉虹信通信技术有限责任公司 | Dual-frequency radiation unit and base station antenna |
| CN111600115A (en) * | 2020-06-28 | 2020-08-28 | 西安电子科技大学 | Broadband dual-frequency dual-polarized filtering base station antenna |
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| CN203386887U (en) * | 2013-04-25 | 2014-01-08 | 华为技术有限公司 | Antenna oscillator and antenna equipped with same |
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| CN104471792A (en) * | 2013-06-27 | 2015-03-25 | 华为技术有限公司 | Antenna radiation unit and antenna |
| CN105406188A (en) * | 2015-12-23 | 2016-03-16 | 安谱络(苏州)通讯技术有限公司 | Novel antenna radiation unit and multi-band antenna |
| CN206834320U (en) * | 2017-05-05 | 2018-01-02 | 华南理工大学 | A kind of bandwidth expansion wide bandwidth base station antenna |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799886A (en) * | 2017-09-27 | 2018-03-13 | 华南理工大学 | A kind of new spread wideband antenna for base station |
| WO2019062654A1 (en) * | 2017-09-27 | 2019-04-04 | 华南理工大学 | Novel spread spectrum broadband base station antenna |
| CN107799886B (en) * | 2017-09-27 | 2023-12-22 | 华南理工大学 | Novel spread spectrum broadband base station antenna |
| CN107834157A (en) * | 2017-11-07 | 2018-03-23 | 华南理工大学 | A kind of bandwidth spread wideband work shape antenna for base station |
| CN109904593A (en) * | 2019-02-27 | 2019-06-18 | 东南大学 | A kind of frequency band enhancing Bipolarization antenna for base station |
| CN110336126A (en) * | 2019-06-30 | 2019-10-15 | 瑞声科技(新加坡)有限公司 | Oscillator device and low profile antenna |
| WO2021000187A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Oscillator device and low profile antenna |
| CN110676579A (en) * | 2019-10-28 | 2020-01-10 | 华南理工大学 | Plane spread spectrum broadband base station antenna |
| CN110783698A (en) * | 2019-11-07 | 2020-02-11 | 武汉虹信通信技术有限责任公司 | Dual-frequency radiation unit and base station antenna |
| CN110783698B (en) * | 2019-11-07 | 2022-04-15 | 中信科移动通信技术股份有限公司 | Dual-frequency radiation unit and base station antenna |
| CN111600115A (en) * | 2020-06-28 | 2020-08-28 | 西安电子科技大学 | Broadband dual-frequency dual-polarized filtering base station antenna |
| CN111600115B (en) * | 2020-06-28 | 2021-02-26 | 西安电子科技大学 | Broadband dual-frequency dual-polarized filtering base station antenna |
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