CN108899645A - A kind of miniaturization dual polarization high-isolation antenna for base station - Google Patents
A kind of miniaturization dual polarization high-isolation antenna for base station Download PDFInfo
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- CN108899645A CN108899645A CN201810668746.8A CN201810668746A CN108899645A CN 108899645 A CN108899645 A CN 108899645A CN 201810668746 A CN201810668746 A CN 201810668746A CN 108899645 A CN108899645 A CN 108899645A
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- antenna
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- medium substrate
- base station
- dual polarization
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- 238000002955 isolation Methods 0.000 title claims abstract description 24
- 230000009977 dual effect Effects 0.000 title claims abstract description 14
- 230000010287 polarization Effects 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 239000004677 Nylon Substances 0.000 claims abstract description 8
- 229920001778 nylon Polymers 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 238000005388 cross polarization Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 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
- 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
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
A kind of miniaturization dual polarization high-isolation antenna for base station, it is characterised in that：Including FR- medium substrate, upper metal layers, lower metal layer, metallic reflection plate, coaxial line and nylon plastic(s) column；FR- medium substrate is supported in metallic reflection plate by least four nylon plastic(s) columns, and FR- medium substrate is by coaxial line direct feed；Upper metal layers and lower metal layer are respectively printed at the upper and lower level of FR- medium substrate；It is in the dipole antenna of cross-distribution there are two being printed in upper metal layers and lower metal layer.Using double-level-metal, the upper lower metal layer of dielectric-slab respectively prints two pairs of crossed dipoles, plays the effect of couple feed, greatly improves matching.
Description
Technical field
The present invention relates to antenna works technical fields, and in particular to a kind of miniaturization dual polarization high-isolation base station day
Line.
Background technique
The fast development of wireless messages technology has made society enter the epoch of wireless messages communication, while wireless
Information technology gives communication system again, and more stringent requirements are proposed, and communication system is promoted to send out towards miniaturization and broadband direction
Exhibition.Application towards radio communication base station, in order to reduce multipath fading and increase channel capacity, a variety of broadband dual polarized antenna quilts
It proposes.While in order to meet 4G communication, meet 2G and 3G communication, the bandwidth of operation of wireless communication has been expanded to 1.71-
2.69GHz.In order to reduce the installation volume and less processing cost of wireless telecom equipment, small design, broadband, high isolation
Degree, low-cross polarization are than having become the challenge of antenna researcher with the antenna for base station for stablizing antenna pattern.Base station day
Line mainly has following three kinds of forms：Micro-strip paster antenna, electromagnetic dipole antenna, cross dipole antenna.Micro-strip paster antenna
There are many disadvantages：Bandwidth is difficult to meet 1.71-2.69GHz, higher cross polarization ratio, and directional diagram changes with frequency in frequency band
It is larger.Although electromagnetic dipole antenna is had excellent performance, structure is complicated, and volume is larger.Crossed dipoles is at present by widely
Applied to wireless communication system, because possessing following advantage：Suitable bandwidth of operation, stable antenna pattern, plane
Change easy to process.However, the requirement with communication system gradually increases, the antenna for base station with more high-isolation and smallerization
Remain the heat subject of research.
There are mainly three types of the forms of feed for crossed dipoles：Direct feed, couple feed, balun feed.Y.H.Cui et al. exists
It is delivered on IEEE Trans.Antennas Propagat. (vol.62, no.9, pp.4836-4840, Jun.2014) entitled
It is introduced in " A Broadband Dual-Polarized Planar Antenna for2G/3G/LTE Base Stations "
A kind of bowknot cross dipole antenna of coaxial line direct feed, the antenna 1.7-2.7GHz bandwidth standing internal wave than small
In 1.5, however, the size of the antenna is larger, aerial radiation bore is 55mm × 55mm.F.Alizadeh et al. exists
2017Iranian Conference on Electrical Engineering(ICEE)(Tehran,pp.1874-1877,
Jul.2017 entitled " Analysis and design of a broadband dual-polarized has been delivered on)
The article of planar antenna for 2G/3G/4G base stations ", devises a kind of friendship of coaxial line direct feed
Dipole leaky antenna is pitched, aerial radiation bore is contracted to 48mm × 48mm, and isolation is also increased to 40dB, however, antenna
VSWR is 2, and section height has also been increased to 45mm.Two above antenna all uses coaxial line direct feed structure, and antenna is not easy
Matching, thus aerial radiation bore is larger or antenna section is higher.
Q.X.Chu et al. IEEE Trans.Antennas Propagat. (vol.63, no.2, pp.483-490,
Dec.2015 " Broadband ± 45 ° A Dual-Polarized Antenna With Y-Shaped Feeding) has been delivered
A Lines " text, the antenna feed structure use couple feed structure, and antenna size is smaller, 53mm × 53mm, antenna height
34m, antenna are easy to match, and standing wave is less than 1.5, however, isolation between antennas only has 25dB.D.Z.Zheng et al. is in IEEE
Antennas and Wireless Propagation Letters (vol.16, pp.633-636, Jul.2017) has delivered " A
The article of Wideband ± 45 ° Multimode Dual-Polarized Antenna With Embedded Loops ", passes through
Parasitic ring broadens the bandwidth of antenna, however similar to a upper antenna, and isolation only has 27dB, the cross dipole of couple feed
The isolation of sub-antenna is lower.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of miniaturization dual polarization high-isolation antenna for base station, tools
Body technique scheme is as follows：
A kind of miniaturization dual polarization high-isolation antenna for base station, it is characterised in that：Including FR-4 medium substrate (1),
Upper metal layers (2), lower metal layer (3), metallic reflection plate (4), coaxial line (5) and nylon plastic(s) column (6)；
The FR-4 medium substrate (1) is supported on the metallic reflection plate (4) by least four nylon plastic(s) columns (6),
The FR-4 medium substrate (1) is by coaxial line (5) direct feed；
The upper metal layers (2) and the lower metal layer (3) are respectively printed at the upper and lower of FR-4 medium substrate (1)
Layer；
It is in the dipole of cross-distribution there are two being printed in the upper metal layers (2) and the lower metal layer (3)
Sub-antenna.
To better implement the present invention, it may further be：
Spacing between two cross dipole antennas uses elliptic curve grading structure.
Further：Dipole antenna radiation face bore is 45mm × 45mm.
Beneficial effects of the present invention are：First, using double-level-metal, the upper lower metal layer of dielectric-slab respectively prints two pairs of intersections
Dipole, plays the effect of couple feed, greatly improves matching；
Second, the crossed dipoles of double-layer structure significantly improves interport isolation；
Third, in order to improve the matching of required frequency range, the spacing between crossed dipoles uses elliptic curve grading structure,
The coupling of elliptical gradient structure significantly improves the matching of antenna, enables the antenna to be matched to standing wave less than 1.5；
4th, antenna size realizes miniaturization, only 45mm × 45mm, while isolation is high, is conducive to the group of antenna
Battle array and figuration.
Detailed description of the invention
Fig. 1 is side view of the invention；
Fig. 2 is overall schematic after each section in Fig. 1 is decomposed；
Fig. 3 is the top view illustration of the antenna；
Fig. 4 is emulation and the test result schematic diagram of the standing wave VSWR and isolation of the antenna；
Fig. 5 is the beam angle of the antenna and the emulation of gain and test result schematic diagram；
Fig. 6 is the horizontal plane radiation pattern of tri- frequency points of 1.7GHz, 2.2GHz, 2.7GHz of the antenna.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figure 1 to Figure 3：A kind of miniaturization dual polarization high-isolation antenna for base station, including FR-4 medium substrate
1, upper metal layers 2, lower metal layer 3, metallic reflection plate 4, coaxial line 5 and nylon plastic(s) column 6；
FR-4 medium substrate 1 is supported in metallic reflection plate 4 by least four nylon plastic(s) columns 6, FR-4 medium substrate 1 by
5 direct feed of coaxial line；
Upper metal layers 2 and lower metal layer 3 are respectively printed at the upper and lower level of FR-4 medium substrate 1,2 He of upper metal layers
Lower metal layer 3 is connected by 8 Shorted posts 7, and the anode of coaxial line is connected with upper metal layers, passes through upper metal layers 2
The feed of transition metal band 8 arrives the anode of antenna, and the cathode of coaxial line is connected with lower metal layer 3.
It is in the dipole antenna of cross-distribution there are two being printed in upper metal layers 2 and lower metal layer 3.
Upper metal layers 2 are identical with the crossed dipoles size of lower metal layer 3, and side length total length is 45mm, up and down
Metal layer prints two electrode couples of intersection, and the spacing between the dipole of intersection becomes larger from center to edge,
Curve is oval.FR-4 medium substrate 1 with a thickness of 1mm, dielectric constant 4.4.The distance of antenna to metallic reflection plate 4 is
35mm.The size of metallic reflection plate 4 is 145mm × 145mm, and metal-sheet edges height is 5mm.Coaxial line 5 is standard coaxial line,
Internal diameter 0.52mm.
Fig. 4 is the emulation and survey of the standing wave VSWR and isolation of invented miniaturization dual polarization high-isolation antenna
Test result schematic diagram.In the frequency range of 1.7-2.7GHz, the standing wave VSWR of antenna is less than 1.5, while isolation is greater than
The result of 33dB, emulation and test is coincide fine.
Fig. 5 is the horizontal plane beam angle of miniaturization dual polarization high-isolation antenna invented and antenna gain
Emulation and test result schematic diagram.In the frequency range of 1.7-2.7GHz, the wave beam of the antenna pattern of antenna in horizontal plane
For width at 65 ° or so, the gain of antenna is about 8.5dBi, and the result of emulation and test is coincide fine.
Fig. 6 is the miniaturization dual polarization high-isolation antenna invented in tri- frequencies of 1.7GHz, 2.2GHz, 2.7GHz
The antenna pattern of the horizontal plane of point, the main polarization and cross polarization ratio of three frequency points are greater than 30dB, and antenna pattern is stablized, and imitate
It very coincide with the result of test fine.
Claims (3)
1. a kind of miniaturization dual polarization high-isolation antenna for base station, it is characterised in that：Including FR-4 medium substrate (1), on
Layer metal layer (2), lower metal layer (3), metallic reflection plate (4), coaxial line (5) and nylon plastic(s) column (6)；
The FR-4 medium substrate (1) is supported on the metallic reflection plate (4) by least four nylon plastic(s) columns (6), described
FR-4 medium substrate (1) is by coaxial line (5) direct feed；
The upper metal layers (2) and the lower metal layer (3) are respectively printed at the upper and lower level of FR-4 medium substrate (1)；
It is in the dipole day of cross-distribution there are two being printed in the upper metal layers (2) and the lower metal layer (3)
Line.
2. a kind of miniaturization dual polarization high-isolation antenna for base station according to claim 1, it is characterised in that：Two friendships
The spacing pitched between dipole antenna uses elliptic curve grading structure.
3. a kind of miniaturization dual polarization high-isolation antenna for base station according to claim 1, it is characterised in that：The idol
Pole sub-antenna radiating surface bore is 45mm × 45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668746.8A CN108899645A (en) | 2018-06-26 | 2018-06-26 | A kind of miniaturization dual polarization high-isolation antenna for base station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668746.8A CN108899645A (en) | 2018-06-26 | 2018-06-26 | A kind of miniaturization dual polarization high-isolation antenna for base station |
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| Publication Number | Publication Date |
|---|---|
| CN108899645A true CN108899645A (en) | 2018-11-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810668746.8A Pending CN108899645A (en) | 2018-06-26 | 2018-06-26 | A kind of miniaturization dual polarization high-isolation antenna for base station |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818139A (en) * | 2019-03-29 | 2019-05-28 | 华南理工大学 | A kind of circular polarisation crossed dipoles GPS navigation antenna |
| CN109994817A (en) * | 2019-03-14 | 2019-07-09 | 重庆大学 | A kind of ultra wideband dual polarization antenna for base station |
| CN110098471A (en) * | 2019-03-14 | 2019-08-06 | 重庆大学 | A kind of wideband dual polarized base station antenna based on mixing balun |
| CN112968271A (en) * | 2020-12-10 | 2021-06-15 | 广东工业大学 | Broadband dual-polarized antenna |
| WO2022227065A1 (en) * | 2021-04-30 | 2022-11-03 | Nokia Shanghai Bell Co., Ltd. | Radiating assembly, radiating unit, antenna, antenna mast and base station |
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| CN104733844A (en) * | 2015-03-21 | 2015-06-24 | 西安电子科技大学 | Planar-broadband dual-polarization base station antenna |
| CN104900998A (en) * | 2015-05-05 | 2015-09-09 | 西安电子科技大学 | Low-profile dual-polarized base station antenna |
| CN105762508A (en) * | 2016-03-23 | 2016-07-13 | 重庆邮电大学 | Broadband dual-polarized mobile base station antenna unit equipped with metallic pillars |
| CN105846075A (en) * | 2016-05-26 | 2016-08-10 | 电子科技大学 | Miniaturized broadband planar dual-polarized antenna |
| WO2016168951A1 (en) * | 2015-04-18 | 2016-10-27 | 江苏亨鑫科技有限公司 | Dual-frequency dual-polarized base station antenna for parallel dual feeding |
| CN106299668A (en) * | 2016-09-27 | 2017-01-04 | 华南理工大学 | A kind of differential feed wideband dual polarized plane antenna for base station |
| CN104638347B (en) * | 2015-01-29 | 2018-09-14 | 华南理工大学 | A kind of wideband dual polarized plane antenna for base station |
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2018
- 2018-06-26 CN CN201810668746.8A patent/CN108899645A/en active Pending
Patent Citations (7)
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| CN104638347B (en) * | 2015-01-29 | 2018-09-14 | 华南理工大学 | A kind of wideband dual polarized plane antenna for base station |
| CN104733844A (en) * | 2015-03-21 | 2015-06-24 | 西安电子科技大学 | Planar-broadband dual-polarization base station antenna |
| WO2016168951A1 (en) * | 2015-04-18 | 2016-10-27 | 江苏亨鑫科技有限公司 | Dual-frequency dual-polarized base station antenna for parallel dual feeding |
| CN104900998A (en) * | 2015-05-05 | 2015-09-09 | 西安电子科技大学 | Low-profile dual-polarized base station antenna |
| CN105762508A (en) * | 2016-03-23 | 2016-07-13 | 重庆邮电大学 | Broadband dual-polarized mobile base station antenna unit equipped with metallic pillars |
| CN105846075A (en) * | 2016-05-26 | 2016-08-10 | 电子科技大学 | Miniaturized broadband planar dual-polarized antenna |
| CN106299668A (en) * | 2016-09-27 | 2017-01-04 | 华南理工大学 | A kind of differential feed wideband dual polarized plane antenna for base station |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109994817A (en) * | 2019-03-14 | 2019-07-09 | 重庆大学 | A kind of ultra wideband dual polarization antenna for base station |
| CN110098471A (en) * | 2019-03-14 | 2019-08-06 | 重庆大学 | A kind of wideband dual polarized base station antenna based on mixing balun |
| CN110098471B (en) * | 2019-03-14 | 2020-09-22 | 重庆大学 | Broadband dual-polarized base station antenna based on hybrid balun |
| CN109818139A (en) * | 2019-03-29 | 2019-05-28 | 华南理工大学 | A kind of circular polarisation crossed dipoles GPS navigation antenna |
| CN109818139B (en) * | 2019-03-29 | 2023-11-10 | 华南理工大学 | Circularly polarized cross dipole GPS navigation antenna |
| CN112968271A (en) * | 2020-12-10 | 2021-06-15 | 广东工业大学 | Broadband dual-polarized antenna |
| WO2022227065A1 (en) * | 2021-04-30 | 2022-11-03 | Nokia Shanghai Bell Co., Ltd. | Radiating assembly, radiating unit, antenna, antenna mast and base station |
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Application publication date: 20181127 |