CN110112577A - A kind of extensive mimo antenna of compact dual polarization applied to 5G communication - Google Patents
A kind of extensive mimo antenna of compact dual polarization applied to 5G communication Download PDFInfo
- Publication number
- CN110112577A CN110112577A CN201910416856.XA CN201910416856A CN110112577A CN 110112577 A CN110112577 A CN 110112577A CN 201910416856 A CN201910416856 A CN 201910416856A CN 110112577 A CN110112577 A CN 110112577A
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- China
- Prior art keywords
- antenna
- radiation patch
- mimo antenna
- dual polarization
- communication
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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
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
- H01Q13/106—Microstrip slot antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of extensive mimo antennas of compact dual polarization applied to 5G communication, belong to 5G communication, compact mimo antenna technical field.The present invention at radiation patch feeding point by etching annular slot, cross gap is etched at the center of radiation patch, and dual polarized antenna is made to have the advantages that miniaturization in the mode that the edge of radiation patch adds small cyclotomy, while there is good matching and higher isolation again.Four identical small capacity double polarization antenna parallels are arranged to make up 1 × 4 compact mimo antenna by the present invention, by introducing mushroom-shaped EBG isolation structure between cells to improve the isolation between port.Compact dual polarization mimo antenna proposed by the present invention is directly extended to the two-dimensional extensive mimo antenna of a peacekeeping in which can be convenient, and is still able to maintain higher isolation and good matching properties.
Description
Technical field
The invention belongs to 5G communications, compact mimo antenna technical field, and in particular to a kind of applied to the compact of 5G communication
The extensive mimo antenna of dual polarization.
Background technique
With the development of internet and technology of Internet of things, the number of mobile terminal and internet-of-things terminal equipment obtains burst
Growth, the development in the fields such as cloud VR/AR, car networking, wireless medical, smart city is also like a raging fire.Existing forth generation moves
The dynamic communication technology can no longer meet the demand of people, therefore the development and commercialization of the 5th generation (5G) mobile communication technology are compeled in eyebrow
Eyelash.Because of its high-speed, large capacity and low delay the characteristics of, 5G communication have been subjected to whole world telecom operators, research institution
Extensive concern.The licensing of 5G communication work frequency range is gradually being provided on Asia, North America and Europe and other places, in addition to existing movement
Outside 6GHz or less frequency range used in communicating, 20GHz also joined the frequency range of 5G communication with super band.China is to electricity at present
Letter operator has provided the 6GHz licensing below for 5G system experimentation, has further pushed the hair of China's 5G communication technology
Exhibition and maturation.
Extensive MIMO (Massive MIMO) technology is also obtained as an important technology of 5G mobile communications network
A large amount of research.Common multiple-input and multiple-output (multiple input multiple output, MIMO) technology usually exists
Receiving end and transmitting terminal only have several antennas, are primarily used to obtain diversity gain and spatial multiplexing gain using multipath.And it is extensive
By placing several hundred a antennas in base station side, a large amount of antenna can use multipath effect, obtains huge battle array MIMO technology
Column gain, while servicing more wireless terminals.Moreover, increasing for number of antennas can also be to decline, noise and interference
It is averaged, reduces the Nonlinear Design in signal processing system, the technologies such as cooperation wave beam forming can also further increase multiple
With gain, interference is reduced, to greatly improve the utilization efficiency of frequency spectrum.
Ideally several of receiving end and transmitting terminal antenna of mimo antenna is all mutually indepedent non-interfering.
The mutually independent effect of unit can be reached by way of adding unit spacing in the case where antenna for base station number is few.So
And increasing with number of antennas, the overall dimension of antenna for base station can be very big under same unit spacing, can make the wind of antenna
Section product increases, to improve the requirement to base station support construction intensity, and then leads to the increase of base station construction cost.Therefore
The mimo antenna that design structure is compact is needed, the lateral dimension of overall antennas sizes, especially antenna is reduced.Due to multiple at present
Network formats are simultaneously deposited, and the same base station is often there are many antenna, therefore the small antenna of overall dimension can save base station space,
Be conducive to the layout of a variety of antennas.The appearance of femto cell, it is also desirable to which small-sized antenna is for accelerating deployment speed.
The confined space of base station makes the spacing of antenna be often below half wavelength, to generate between cells strongly
Coupling.There are mainly three types of approach for the generation of coupling: Space Coupling, surface wave coupling and Conduction coupling.Space Coupling refers to electromagnetism
Wave is coupled on another antenna element via space from an antenna element, such coupling and antenna element spacing
Relationship Comparison is big, and usual cell spacing is closer, and coupling is stronger.Surface wave coupling refers to electromagnetic wave in the form of surface wave through being situated between
Matter surface couples caused by propagating.Conduction coupling refers to that electromagnetic energy is directly connected to generate by metal between unit
Coupling.And in order to keep mimo antenna each unit reference level having the same, the connection between antenna element is generally necessary
's.Strong coupling can reduce the radiation efficiency of antenna, reduce signal-to-noise ratio, increase the correlation between antenna element, in turn
The handling capacity of reduction system.Therefore the mimo antenna of actual use usually requires to carry out the decoupling of antenna element.
Document " Array-Antenna Decoupling Surface " discloses a kind of referred to as array antenna decoupling surface
Electromagnetic structure.The working principle that array antenna decouples surface is to place certain amount in a certain height in aerial radiation direction
Metal patch, by height and metal patch geomery control, offset the electromagnetic wave of the surface reflection just
The electromagnetic wave of Space Coupling, and then achieve the purpose that uncoupling between unit.Two kinds are disclosed MIMO days based on the principle document
Line.One is the single polarization linear array of 1 × unit 8, which has one-dimensional scalability.Another antenna is Unit 2 × 2
Dual polarization square matrix, text in there is no prove have two-dimensional expansible characteristic.Since decoupling surface must be apart from aerial radiation list
First certain distance, therefore section is relatively high, structure is more complicated.
Document " ANew Decoupling Method for Massive MIMO Antennas " discloses a kind of big rule
Mould dual polarization mimo antenna.The antenna introduces horizontal and vertical bent metal strips, the metal tape of introducing between adjacent cells
It can produce additional coupling path, to reduce the coupling between port.Designed dual polarized antenna unit uses four pieces
Isolated metal patch, size are bigger.And unit center spacing is bigger, reaches 0.8 air wavelength.
Summary of the invention
The purpose of the present invention is overcome in the prior art multiple-unit dual polarization mimo antenna unit size it is big, cell spacing is big
Defect, provide it is a kind of applied to 5G communication the extensive mimo antenna of compact dual polarization, have it is good matching and it is higher
Isolation.
Technical problem proposed by the invention solves in this way:
A kind of extensive mimo antenna of compact dual polarization applied to 5G communication is in 1 using small capacity double poliarizing antenna as unit
× 4 one-dimensional parallel compact arrangements；Small capacity double poliarizing antenna includes radiation patch, medium substrate and metal floor；Radiation patch position
In the upper surface of medium substrate, metal floor is located at the lower surface of medium substrate；Radiation patch is square, center and medium base
The center of plate is overlapped, and the edge of radiation patch and the edge of medium substrate are in 45° angle；Cross gap is etched in radiation patch,
Cross gap is parallel with the edge of medium substrate；Radiation patch is etched with annulus seam in the lower left corner of cross gap and the lower right corner
Gap；Radiation patch has small cyclotomy structure in left edge and top right-hand side edge；Mushroom is introduced between adjacent small capacity double poliarizing antenna
Type EBG (Electromagnetic Band Gap, electro-magnetic bandgap) isolation structure.
Cross gap is etched in the center of radiation patch, the horizontal gap and vertical clearance gap length and width of cross gap
It is all identical.
The center of circle of two annular slots is located on the line at two groups of opposite side midpoints of radiation patch, two annular slots
The center of circle is the center of two feed ports of dual polarized antenna respectively.
The center of circle of two small cyclotomy structure is located on the line at two groups of opposite side midpoints of radiation patch.
A kind of extensive mimo antenna of compact dual polarization applied to 5G communication, it is extensive with 1 × 4 compact dual polarization
Based on mimo antenna, one-dimensional or two-dimensional expansion is carried out, 1 × 4 adjacent extensive MIMO of compact dual polarization in horizontal direction
Mushroom-shaped EBG isolation structure is introduced between the adjacent cells of antenna, guarantees to polarize in horizontal direction per two adjacent small capacity doubles
Mushroom-shaped EBG isolation structure is introduced between antenna, obtains extensive mimo antenna.
The beneficial effects of the present invention are:
The present invention overcomes multiple-unit dual polarization mimo antenna unit size is big, the big defect of cell spacing, institute of the present invention
Mimo antenna unit compact arrangement is stated, unit size is small, and cell spacing is small, has good matching and higher isolation.
Detailed description of the invention
Fig. 1 is the cellular construction figure of 1 × 4 dual polarization mimo antenna of the present invention；
Fig. 2 is 1 × 4 dual polarization mimo antenna structure chart of the present invention；
Fig. 3 is the S parameter figure of 1 × 4 dual polarization mimo antenna of the present invention；
Fig. 4 is directional diagram of 1 × 4 dual polarization mimo antenna of the present invention in 5.4GHz；
Fig. 5 is 1 × 8 dual polarization mimo antenna structure chart of the present invention；
Fig. 6 is the S parameter figure of 1 × 8 dual polarization mimo antenna of the present invention；
Fig. 7 is 4 × 4 dual polarization mimo antenna structure chart of the present invention；
Fig. 8 is the S parameter figure of 4 × 4 dual polarization mimo antenna of the present invention.
Specific embodiment
The present invention is further detailed with reference to the accompanying drawings and examples.
Embodiment one
The present embodiment provides a kind of extensive mimo antennas of compact dual polarization applied to 5G communication.Its single antenna construction is shown
It is intended to as shown in Figure 1.Using this small capacity double poliarizing antenna as unit, in 1 × 4 one-dimensional parallel compact arrangement, structural schematic diagram is such as
Shown in Fig. 2；Small capacity double poliarizing antenna includes radiation patch, medium substrate and metal floor；Radiation patch is located at medium substrate
Upper surface, metal floor are located at the lower surface of medium substrate；Radiation patch is square, the center weight of center and medium substrate
It closes, the edge of radiation patch and the edge of medium substrate are in 45° angle；Be etched with cross gap in radiation patch, cross gap with
The edge of medium substrate is parallel, and cross gap is etched in the center of radiation patch, the horizontal gap and vertical lap seam of cross gap
Gap length and width is all identical；Radiation patch is etched with annular slot, two annulus in the lower left corner of cross gap and the lower right corner
The center of circle in gap is located on the line at two groups of opposite side midpoints of radiation patch, and the center of circle of two annular slots is dual polarization respectively
The center of two feed ports of antenna；Radiation patch has small cyclotomy structure, two small cyclotomy knot in left edge and top right-hand side edge
The center of circle of structure is located on the line at two groups of opposite side midpoints of radiation patch；Mushroom is introduced between adjacent small capacity double poliarizing antenna
Type EBG isolation structure.
Fig. 3 gives the S parameter relevant to port 1-4 of 1 × 4 mimo antenna described in the present embodiment.
Fig. 4 is the directional diagram of 1 × 4 mimo antenna described in the present embodiment.
Embodiment two
The present embodiment provides the mimo antennas of one kind 1 × 8, and structural schematic diagram is as shown in figure 5, with described in embodiment one
One-Dimensional Extended is carried out based on mimo antenna, guarantees all to introduce mushroom between every two adjacent dual polarized antennas in horizontal direction
Type EBG isolation structure.
Fig. 6 gives the S parameter of described in the present embodiment 1 × 4 mimo antenna port 1-8.
Embodiment three
The present embodiment provides the mimo antennas of one kind 4 × 4, and structural schematic diagram is as shown in fig. 7, with described in embodiment one
Two-dimensional expansion is carried out based on mimo antenna, guarantees to introduce equal mushroom between every two adjacent dual polarized antennas in horizontal direction
Type EBG isolation structure.
Fig. 8 gives the S parameter of described in the present embodiment 4 × 4 mimo antenna port 1-4 and port 9-12.
Claims (5)
1. a kind of extensive mimo antenna of compact dual polarization applied to 5G communication, which is characterized in that with small capacity double poliarizing antenna
It is in 1 × 4 one-dimensional parallel compact arrangement for unit；Small capacity double poliarizing antenna includes radiation patch, medium substrate and metal floor；
Radiation patch is located at the upper surface of medium substrate, and metal floor is located at the lower surface of medium substrate；Radiation patch is square, in
The heart is overlapped with the center of medium substrate, and the edge of radiation patch and the edge of medium substrate are in 45° angle；It is etched in radiation patch
Cross gap, cross gap are parallel with the edge of medium substrate；Radiation patch etches in the lower left corner of cross gap and the lower right corner
There is annular slot；Radiation patch has small cyclotomy structure in left edge and top right-hand side edge；Between adjacent small capacity double poliarizing antenna
Introduce mushroom-shaped EBG isolation structure.
2. the compact dual polarization extensive mimo antenna according to claim 1 applied to 5G communication, which is characterized in that ten
Word gap is etched in the center of radiation patch, and the horizontal gap and vertical clearance gap length and width of cross gap are all identical.
3. the compact dual polarization extensive mimo antenna according to claim 1 applied to 5G communication, which is characterized in that two
The center of circle of a annular slot is located on the line at two groups of opposite side midpoints of radiation patch, and the center of circle of two annular slots is respectively
The center of two feed ports of dual polarized antenna.
4. the compact dual polarization extensive mimo antenna according to claim 1 applied to 5G communication, which is characterized in that two
The center of circle of a small cyclotomy structure is located on the line at two groups of opposite side midpoints of radiation patch.
5. a kind of extensive mimo antenna of compact dual polarization applied to 5G communication, with compact dual polarization described in claim 1
Based on extensive mimo antenna, one-dimensional or two-dimensional expansion is carried out, guarantees to polarize in horizontal direction per two adjacent small capacity doubles
Mushroom-shaped EBG isolation structure is introduced between antenna, obtains extensive mimo antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416856.XA CN110112577A (en) | 2019-05-20 | 2019-05-20 | A kind of extensive mimo antenna of compact dual polarization applied to 5G communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416856.XA CN110112577A (en) | 2019-05-20 | 2019-05-20 | A kind of extensive mimo antenna of compact dual polarization applied to 5G communication |
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| CN110112577A true CN110112577A (en) | 2019-08-09 |
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| CN201910416856.XA Pending CN110112577A (en) | 2019-05-20 | 2019-05-20 | A kind of extensive mimo antenna of compact dual polarization applied to 5G communication |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504537A (en) * | 2019-08-28 | 2019-11-26 | 榆林学院 | One kind being based on two unit micro-strip mimo antenna of polynary parasitic surface structure broadband |
| CN110854527A (en) * | 2019-11-07 | 2020-02-28 | 电子科技大学 | Dual-polarized high-performance broadband antenna based on super surface and array thereof |
| GB2592305A (en) * | 2020-01-24 | 2021-08-25 | Motorola Mobility Llc | Managing antenna module heat and RF emissions |
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| CN109346837A (en) * | 2018-09-28 | 2019-02-15 | 电子科技大学 | A kind of ultra wide band wide-angle scanning phased array based on magnetoelectricity dipole antenna |
| CN208706871U (en) * | 2018-09-29 | 2019-04-05 | 南京林业大学 | A kind of multi-frequency microstrip patch antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140049437A1 (en) * | 2012-08-17 | 2014-02-20 | Mediatek Inc. | Multi-input multi-output antenna with electromagnetic band-gap structure |
| CN103682625A (en) * | 2012-09-18 | 2014-03-26 | 中兴通讯股份有限公司 | Multiple-input multiple-output antenna and mobile terminal |
| CN104882672A (en) * | 2015-05-28 | 2015-09-02 | 电子科技大学 | Wide bandwidth wave beam circular polarization Yagi-microstrip antenna |
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| CN108847533A (en) * | 2018-05-25 | 2018-11-20 | 哈尔滨工程大学 | A kind of decoupling structure between multi-input/output antenna |
| CN109346837A (en) * | 2018-09-28 | 2019-02-15 | 电子科技大学 | A kind of ultra wide band wide-angle scanning phased array based on magnetoelectricity dipole antenna |
| CN208706871U (en) * | 2018-09-29 | 2019-04-05 | 南京林业大学 | A kind of multi-frequency microstrip patch antenna |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504537A (en) * | 2019-08-28 | 2019-11-26 | 榆林学院 | One kind being based on two unit micro-strip mimo antenna of polynary parasitic surface structure broadband |
| CN110854527A (en) * | 2019-11-07 | 2020-02-28 | 电子科技大学 | Dual-polarized high-performance broadband antenna based on super surface and array thereof |
| GB2592305A (en) * | 2020-01-24 | 2021-08-25 | Motorola Mobility Llc | Managing antenna module heat and RF emissions |
| US11217877B2 (en) | 2020-01-24 | 2022-01-04 | Motorola Mobility Llc | Managing antenna module heat and RF emissions |
| GB2592305B (en) * | 2020-01-24 | 2023-10-04 | Motorola Mobility Llc | Managing antenna module heat and RF emissions |
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Application publication date: 20190809 |