CN105958191A - Dual polarization high gain MIMO antenna based on aperiodic artificial magnetic conductor structure - Google Patents
Dual polarization high gain MIMO antenna based on aperiodic artificial magnetic conductor structure Download PDFInfo
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- CN105958191A CN105958191A CN201610271864.6A CN201610271864A CN105958191A CN 105958191 A CN105958191 A CN 105958191A CN 201610271864 A CN201610271864 A CN 201610271864A CN 105958191 A CN105958191 A CN 105958191A
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- 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
- H01Q15/004—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 using superconducting materials or magnetised substrates
Abstract
The invention provides a dual polarization high gain MIMO antenna based on aperiodic artificial magnetic conductor structure, the antenna is formed by double-layer-stacked dielectric substrate and comprises a patch antenna which is printed on the upper surface of upper layer of the dielectric substrates, a metal floor which is printed on the lower surface of lower layer of the dielectric substrates, an artificial magnetic conductor reflective plate which is printed on the upper surface of lower layer of the dielectric substrates, four coaxial feed probes which insert into the artificial magnetic conductor reflective plate and the upper surface of the dielectric substrates from the lower surface of the lower layer of the dielectric substrates, wherein the probes are connected with the cross patch antenna; the patch antenna is a cross structure, the artificial magnetic conductor reflective plate is divided into a plurality of artificial magnetic conductor units which are in different sizes and is arranged in central symmetry, and each artificial magnetic conductor unit is a rectangular metal patch. The antenna can realize radiation characteristics of dual polarization, high gain, high efficiency and high isolation.
Description
Technical field
The present invention relates to a kind of microstrip antenna, a kind of dual polarization based on artificial magnetic conductor structure aperiodic
High-gain mimo antenna.
Background technology
In recent years, artificial magnetic conductor was one of focus of microwave and millimeter wave area research.It is utilized to have uniqueness
Surface wave bandgap characteristic and to plane wave homophase reflection characteristic, can effectively improve the performance of antenna.F.
Artificial magnetic conductor structure is applied to around microstrip antenna by Yang and Y.Rahmat-Samii et al., in order to suppress
The propagation of surface wave, improves the gain of antenna, reduces episternites.Meanwhile, as dipole antenna and spiral
The reflecting surface of coil antenna, can make antenna be close to artificial magnetic conductor body structure surface, it is achieved low profile antenna.This
Outward, artificial magnetic conductor structure is applied on paster antenna by A.Foroozesh et al., and bandwidth and radiation gain are all
It is greatly improved.
But, when several identical artificial magnetic conductor unit composition reflecting plates are positioned at below antenna, due to often
Individual unit is different from the distance of antenna, and the current intensity distribution of each cell surface is the most inconsistent, therefore can not be
Big degree ground strengthens the radiation gain of antenna.W.Yang et al. proposes detail and loads artificial magnetic conductor
(Stub-loaded artificial magnetic conductor, SLAMC) structure, and as probe feed
The floor of paster antenna so that the working band of antenna, radiation gain and radiation efficiency all improve a lot.
But radiation efficiency only has 83%, and cross polarization inhibition is poor.In order to improve the performance of antenna, they are tight
Then propose a kind of high efficiency microstrip antenna based on artificial magnetic conductor structure aperiodic, can realize high efficiency
Radiation characteristic and preferable cross polarization suppression, but this structure is only capable of realizing single polarization characteristic.
Summary of the invention
It is an object of the invention to provide a kind of dual polarization high-gain based on artificial magnetic conductor structure aperiodic
Mimo antenna, can realize the radiation characteristic of dual polarization, high-gain, high efficiency, high isolation.
A kind of dual polarization high-gain mimo antenna based on artificial magnetic conductor structure aperiodic, uses double-layer overlapped
The medium substrate composition put, including cross paster antenna, metal floor, artificial magnetic conductor reflecting plate, coaxial
Feed probes.Cross paster antenna is printed on upper layer medium substrate upper surface, and metal floor is printed on lower floor and is situated between
Matter base lower surface, artificial magnetic conductor reflecting plate is printed on layer dielectric upper surface of base plate, coaxial feed probe from
Layer dielectric base lower surface inserts artificial magnetic conductor reflecting plate and upper layer medium substrate, described four coaxial feeds
Probe is connected with cross paster antenna.Described artificial magnetic conductor reflecting plate is divided into multiple independent in matrix
The artificial magnetic conductor unit of formula arrangement, is provided with narrow gap, at this between two adjacent artificial magnetic conductor unit
It should be noted that when the size disparity of two artificial magnetic conductor unit adjacent on diagonal is excessive, can go out
The phenomenon that two unit adjacent on existing diagonal overlap, this can be avoided by small shearing, the most basic
Do not interfere with the electromagnetic property of metamaterial structure.Therefore, each artificial magnetic conductor unit may be conventional rectangle
Metal patch, it is also possible to the rectangular metal paster of small shearing.The artificial magnetic conductance of described matrix arrangement
Body unit is all symmetrical arranged about horizontal axis and vertical axis.In addition, it is contemplated that the electric current of corner edges is relatively
Weak, four clipped corners on floor the most both can be ensure that the radiance of antenna, enhance again wave beam in side
The concordance of plane.
As a modification of the present invention, described paster antenna is cross-shaped configuration, has horizontal polarization with vertical
The dual polarization characteristic of polarization, the degree of coupling of two dimensions all can be affected by distance, can be become by size
Change and arrangement change compensates.
As a modification of the present invention, described artificial magnetic conductor reflecting plate is centrosymmetric, artificial magnetic conductor list
Unit is to be on horizontal axis and vertical axis to be symmetrical arranged in two dimensions.
As a modification of the present invention, between described two adjacent artificial magnetic conductor unit, it is provided with narrow seam
Gap.If the phenomenon that two unit adjacent on diagonal overlap occurs, can be avoided by small shearing, simultaneously
Substantially without the electromagnetic property affecting metamaterial structure.
As a modification of the present invention, it is contemplated that the electric current of corner edges is more weak, can be by the corner on floor
Excision, the most both ensure that the radiance of antenna, had enhanced again the wave beam concordance at azimuth plane.
As a modification of the present invention, coaxial feed probe uses two groups of difference coaxial feed modes to be paster sky
Line feeds, and realizes preferable cross polarization suppression.
It is cross for using above-mentioned microstrip antenna, paster antenna 1, is printed on upper layer medium substrate 2 upper surface
Center, its a length of 0.1 λg,0.75λg, a width of 0.1 λg,0.5λg, wherein λgMedium for upper layer medium substrate 2 has
Length.
Use above-mentioned microstrip antenna, the length of artificial magnetic conductor unit and a width of 0.03 λ, 0.26 λ, narrow gap
Width is 0.001 λ, 0.015 λ, the length of small shearing and a width of 0.001 λ, 0.015 λ.
Use above-mentioned microstrip antenna, upper layer medium substrate and the DIELECTRIC CONSTANT ε of layer dielectric substraterIt is
2.2,10.2, thickness H are 0.01 λ, 0.1 λ, and wherein λ is free space wavelength.
Using above-mentioned microstrip antenna, paster antenna is cross-shaped configuration, is printed on upper layer medium substrate upper surface center,
Its a length of 0.1 λg,0.75λg, a width of 0.1 λg,0.5λg, wherein λgMedium effective wavelength for upper layer medium substrate.
The present invention compared with prior art, has the advantage that (1) present invention can realize two kinds of polarization modes,
This structure uses cross paster antenna, has the dual polarization characteristic of horizontal polarization and vertical polarization, and arranges people
Work magnetic conductance dignity centrosymmetry, the degree of coupling of two dimensions all can be affected by distance, can pass through size
Change and arrangement change compensate;(2) dual polarization based on artificial magnetic conductor structure aperiodic that the present invention proposes
High-gain mimo antenna, carrys out the distribution of lengths of control rectangle metal patch by suitably regulating its size,
Can effectively improve the electric-field intensity distribution of antenna surface eventually, it is achieved broadband, high efficiency, the radiation of high isolation
Characteristic, meanwhile, aperture efficiency also can bring up to 105%;(3) present invention propose based on people's aperiodic
The dual polarization high-gain mimo antenna of work magnetic conductor structure, it is contemplated that the electric current of corner edges is more weak, can
With by four clipped corners on floor, the most both ensure that the radiance of antenna, enhance again wave beam at azimuth plane
Concordance;(4) dual polarization high-gain MIMO based on artificial magnetic conductor structure aperiodic that the present invention proposes
Antenna, still remains the low section spy that high efficiency microstrip antenna based on artificial magnetic conductor structure aperiodic is compared
Property, overall structure only has the thickness of 0.05 λ;(5) present invention propose based on artificial magnetic conductor structure aperiodic
Dual polarization high-gain mimo antenna, use double-deck microwave-medium plate, simple in construction, handling ease, become
This and weight are the most relatively small, thus can be with large-scale production.
Below in conjunction with Figure of description, the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the three of present invention dual polarization based on artificial magnetic conductor structure aperiodic high-gain mimo antenna
Dimension figure, top view and side view, wherein figure (a) is graphics, and figure (b) is top view, and figure (c) is
Side view.
Fig. 2 is graphics and the top view of present invention artificial magnetic conductor aperiodic unit, and wherein figure (a) is square
The graphics of shape artificial magnetic conductor unit, figure (b) is the top view of rectangle artificial magnetic conductor unit.
Fig. 3 is the long l of the rectangular metal paster of the artificial magnetic conductor unit that the present invention 32 is independentm, wide ln's
Scattergram.
Fig. 4 is at artificial magnetic conductor unit different length l based on Fig. 3nUnder reflected phase figure.
Fig. 5 is to be l based on Fig. 3 in the distribution of lengths of cross metal patch1=9mm, l2=8.8mm, l3=4.5
Reflection coefficient during mm and gain and isolation and aperture efficiency curve, wherein (a) is reflection coefficient and gain
Curve, (b) is isolation and aperture efficiency curve.
Fig. 6 is to be l based on Fig. 3 in the distribution of lengths of cross metal patch1=9mm, l2=8.8mm, l3=4.5
The antenna pattern at maximum gain point during mm.
Fig. 7 is the long l of the rectangular metal paster of the artificial magnetic conductor unit that the present invention 16 is independentm, wide lnPoint
Butut.
Fig. 8 is to be l based on Fig. 7 in the distribution of lengths of rectangular metal paster1=8.5mm, l2Anti-during=8mm
Penetrating coefficient and gain and isolation and aperture efficiency curve, wherein (a) is the curve of reflection coefficient and gain, (b)
For isolation and aperture efficiency curve.
Fig. 9 is to be l based on Fig. 7 in the distribution of lengths of rectangular metal paster1=8.5mm, l2During=8mm
Antenna pattern at large gain point.
Detailed description of the invention
In conjunction with Fig. 1, a kind of dual polarization high-gain mimo antenna based on artificial magnetic conductor structure aperiodic, adopt
The medium substrate composition stacked with bilayer, including cross paster antenna 1, metal floor 6, artificial magnetic conductor
Reflecting plate 4, coaxial feed probe 3.Paster antenna 1 is printed on upper layer medium substrate 2 upper surface, metal ground
Plate is printed on layer dielectric substrate 7 lower surface, and artificial magnetic conductor reflecting plate 4 is printed on layer dielectric substrate 7
Upper surface, coaxial feed probe 3 inserts artificial magnetic conductor reflecting plate 4 and upper from layer dielectric substrate 7 lower surface
Layer medium substrate 2, described two groups of coaxial feed probe 3 are connected with paster antenna 1 respectively and feed respectively, its
It is differential signal between two coaxial probes on middle horizontal axis, between two coaxial probes on vertical axis
For differential signal.Described artificial magnetic conductor reflecting plate 4 is divided into multiple independent artificial in matrix arrangement
Magnetic conductor unit 5, each artificial magnetic conductor unit is conventional or with small shearing rectangular metal paster,
The most small shearing is substantially without the electromagnetic property affecting metamaterial structure;The artificial magnetic conductor list of matrix arrangement
It is symmetrical arranged centered by unit.Electric current in view of corner edges is more weak, can be by four clipped corners on floor, this
Sample both ensure that the radiance of antenna, enhances again the wave beam concordance at azimuth plane.
In conjunction with Fig. 2, between described two adjacent artificial magnetic conductor unit 5, it is provided with narrow gap 9, if diagonal angle
The size disparity of two artificial magnetic conductor unit 5 adjacent on line is excessive, it may appear that adjacent on diagonal two
The phenomenon that unit overlaps, this can be avoided by small shearing 8, simultaneously substantially without affecting metamaterial structure
Electromagnetic property, there is small shearing 8 above artificial magnetic conductor unit 5 now.
Described upper layer medium substrate 2 and the DIELECTRIC CONSTANT ε of layer dielectric substrate 7rIt is 2.2,10.2, thickness H
Being 0.01 λ, 0.1 λ, wherein λ is free space wavelength.
The long a of described cross paster antenna 1 is 0.1 λg,0.75λg, wide b is 0.1 λg,0.5λg, wherein
λgMedium effective wavelength for upper layer medium substrate 2.
The long l of described rectangular metal pastermWith wide lnBeing 0.03 λ, 0.26 λ, the width G in narrow gap 9 is
0.001 λ, 0.015 λ, length and width t of small shearing 8 are 0.001 λ, 0.015 λ.
Embodiment one
In conjunction with Fig. 3, described aperiodic, artificial magnetic conductor reflecting plate 4 was divided into 32 independent artificial magnetic conductances
Body unit 5, is symmetrical arranged centered by the artificial magnetic conductor reflecting plate 4 of described matrix arrangement, say, that
32 independent artificial magnetic conductor unit 5 of described matrix arrangement the most symmetrically, i.e. close in two dimensions
All it is symmetrical arranged in horizontal axis and vertical axis.For horizontal polarization, artificial magnetic conductor unit 5 is along y-axis side
To often row each unit length consistent, but the length of different row is different, is designated as ln, length is the most often arranged from center
It is l successively1、l2、l3, the structure of each row is respectively symmetrically up and down.For vertical polarization, along x
Axial each column each unit length is consistent, but the length of different lines is different, and from center, outside each column length also depends on
Secondary is l1、l2、l3.Therefore, the length and width of the artificial magnetic conductor unit 5 on diagonal are all consistent, are square knots
Structure.Because working as l1、l2、l3Gap bigger time, it may appear that what adjacent on diagonal two unit overlapped shows
As, so being avoided by small shearing 8, the most small shearing is substantially without the electromagnetism affecting metamaterial structure
Characteristic.In addition, it is contemplated that the electric current of corner edges is more weak, four clipped corners on floor the most both can be protected
Demonstrate,prove the radiance of antenna, enhance again the wave beam concordance at azimuth plane.
The length of artificial magnetic conductor unit 5 and a width of 0.03 λ, 0.26 λ, the width in narrow gap 9 is
0.001 λ, 0.015 λ, length and width t of small shearing 8 are 0.001 λ, 0.015 λ;Upper layer medium substrate 2 and lower floor are situated between
The DIELECTRIC CONSTANT ε of matter substrate 7rBeing 2.2,10.2, thickness H are 0.01 λ, 0.1 λ, and wherein λ is free space
Wavelength;Paster antenna 1 is cross, is printed on upper layer medium substrate 2 upper surface center, and its long b is
0.1λg,0.75λg, wide a is 0.1 λg,0.5λg, wherein λgMedium effective wavelength for upper layer medium substrate 2.
In experiment, the long a taking cross paster antenna 1 is 4mm, and wide b is 12.7mm;Rectangular metal is pasted
The long l of sheet 6mWith wide lnIn the range of 4 to 10mm, the width G in narrow gap 9 is 0.4mm;Upper strata
The material of medium substrate 2 and layer dielectric substrate 7 is Rogers RT/Duroid 5880, DIELECTRIC CONSTANT εr
Being 2.2, dielectric loss angle is 0.0009, and thickness H is 1mm, about 0.025 λ0(wherein λ0For 7.7GHz
The free space wavelength at place).
In conjunction with Fig. 4, when plane wave impinges perpendicularly on artificial magnetic conductor reflecting plate 4 aperiodic, echo anti-
Penetrating phase place to change and consecutive variations along with frequency, phase place excursion is 180 °~-180 °, and this is with common
The reflected phase characteristic of artificial magnetic conductor is consistent;Length l along with rectangular metal paster 6nIncrease from 7mm
Being added to 9mm, 1 reflected phase point gradually moves to low frequency.
In conjunction with Fig. 5, dual polarization high-gain mimo antenna based on artificial magnetic conductor structure aperiodic can obtain
Arriving, the reflection coefficient working band less than-10dB is 6.9GHz~8.1GHz, and relative bandwidth is 15.7%,
Maximum gain can reach 13.7dBi;And by isolation and aperture efficiency figure it is found that isolation may be up to
55dB, and in its working band, radiation efficiency may be up to 105%.
In conjunction with Fig. 6, by the maximum of dual polarization high-gain mimo antenna based on artificial magnetic conductor structure aperiodic
Antenna pattern at gain point is it is found that dual polarization high-gain based on artificial magnetic conductor structure aperiodic
The cross polarization inhibition of mimo antenna is preferable, can reach about 35dB.
From the foregoing, it will be observed that dual polarization high-gain MIMO days based on artificial magnetic conductor structure aperiodic of the present invention
Line can realize dual polarization, high-gain, high calibre efficiency and preferably isolate.
Table 1 is that present invention dual polarization based on artificial magnetic conductor structure aperiodic high-gain mimo antenna is at square
The distribution of lengths of shape metal patch is l1=9mm, l2=8.8mm, l3With rectangular metal paster during=4.5mm
Distribution of lengths is L1=6mm, l2Performance during=7mm.
In conjunction with table 1, should dual polarization high-gain mimo antenna based on artificial magnetic conductor structure aperiodic keep
In the case of impedance bandwidth, gain are the highest, it is achieved that dual polarization characteristic, aperture efficiency is improved extremely simultaneously
105%.On the other hand, isolation is also preferable, may be up to 60dB.
Table 1
Embodiment two
In conjunction with Fig. 7, described artificial magnetic conductor reflecting plate 4 is divided into 16 independent artificial magnetic conductor unit 5,
It is symmetrical arranged centered by the artificial magnetic conductor reflecting plate 4 of described matrix arrangement, say, that described matrix form
Arrangement 16 independent artificial magnetic conductor unit 5 in two dimensions the most symmetrically, i.e. about horizontal axis
All it is symmetrical arranged with vertical axis.For horizontal polarization, often row along the y-axis direction is each for artificial magnetic conductor unit 5
Element length is consistent, but the length of different row is different, is designated as ln, the most often arranging length from center is l successively1、
l2, the structure of each row is respectively symmetrically up and down.For vertical polarization, each column along the x-axis direction
Each unit length is consistent, but the length of different lines is different, and from center, outside each column length is l the most successively1、l2。
Therefore, the length and width of the artificial magnetic conductor unit 5 on diagonal are all consistent, are square structures.Need exist for
Bright, work as l1、l2Gap bigger time, it may appear that the phenomenon that adjacent on diagonal two unit overlap,
So it is avoided by small shearing 8, simultaneously substantially without the electromagnetic property affecting metamaterial structure.
The length of artificial magnetic conductor unit 5 and a width of 0.03 λ, 0.26 λ, the width in narrow gap 9 is
0.001 λ, 0.015 λ, length and width t of small shearing 8 are 0.001 λ, 0.015 λ;Upper layer medium substrate 2 and lower floor are situated between
The DIELECTRIC CONSTANT ε of matter substrate 7rBeing 2.2,10.2, thickness H are 0.01 λ, 0.1 λ, and wherein λ is free space
Wavelength;Paster antenna 1 is cross, is printed on upper layer medium substrate 2 upper surface center, and its long b is
0.1λg,0.75λg, wide a is 0.1 λg,0.5λg, wherein λgMedium effective wavelength for upper layer medium substrate 2.
In experiment, the long a taking cross paster antenna 1 is 3.5mm, and wide b is 13mm;Rectangular metal is pasted
The long l of sheet 6mWith wide lnIn the range of 6 to 10mm, the width G in narrow gap 9 is 0.4mm;Upper strata
The material of medium substrate 2 and layer dielectric substrate 7 is Rogers RT/Duroid 5880, DIELECTRIC CONSTANT εr
Being 2.2, dielectric loss angle is 0.0009, and thickness H is 1mm, about 0.025 λ0(wherein λ0For 7.7GHz
The free space wavelength at place).
In conjunction with Fig. 4, when plane wave impinges perpendicularly on miniaturization artificial magnetic conductor aperiodic reflecting plate 4, reflection
The reflected phase of ripple can along with frequency change and consecutive variations, phase place excursion is 180 °~-180 °, this with
The reflected phase characteristic of common artificial magnetic conductor is consistent;Length l along with rectangular metal paster 6nFrom
7mm increases to 9mm, and 1 reflected phase point gradually moves to low frequency.
In conjunction with Fig. 8, by the reflection of dual polarization high-gain mimo antenna based on artificial magnetic conductor structure aperiodic
Coefficient and gain curve figure can obtain, reflection coefficient less than the working band of-10dB be 7.5GHz~
8.8GHz, relative bandwidth is 16.4%;Radiation gain maximum is 12.8dBi;By isolation and aperture efficiency
Figure is it is found that in its working band, isolation may be up to 60dB, and radiation efficiency may be up to 104%.
In conjunction with Fig. 9, by the maximum of dual polarization high-gain mimo antenna based on artificial magnetic conductor structure aperiodic
Antenna pattern at gain point is it is found that this cross polarization inhibition is preferable, and cross polarization suppresses level
Can reach 50dB.Additionally, due to aerial radiation aperture area is less, in this aerial band, all frequencies all do not go out
Existing secondary lobe.
From the foregoing, it will be observed that dual polarization high-gain MIMO days based on artificial magnetic conductor structure aperiodic of the present invention
Line can realize that dual polarization, broadband, bore be little really, high isolation, broadband high-efficiency characteristic and can improve friendship
Fork polarization characteristic, solution secondary lobe problem.
In conjunction with table 1, should dual polarization high-gain mimo antenna based on artificial magnetic conductor structure aperiodic realize
While dual polarization characteristic, not only bandwidth, gain are preferable, also improve aperture efficiency to 104%.With this
Meanwhile, cross polarization suppression level can reach 50dB.On the other hand, isolation is also preferable, may be up to 60dB.
Claims (10)
1. a dual polarization high-gain mimo antenna based on artificial magnetic conductor structure aperiodic, uses bilayer to stack
Medium substrate composition, including:
It is printed on the paster antenna [1] of upper layer medium substrate [2] upper surface,
It is printed on the metal floor [6] of layer dielectric substrate [7] lower surface,
It is printed on the artificial magnetic conductor reflecting plate [4] of layer dielectric substrate [7] upper surface, and
Artificial magnetic conductor reflecting plate [4] and the four of upper layer medium substrate [2] is inserted from layer dielectric substrate [7] lower surface
Root coaxial feed probe [3], described four coaxial feed probe [3] are connected with cross paster antenna [1];
It is characterized in that,
Described paster antenna [1] is cross-shaped configuration,
Described artificial magnetic conductor reflecting plate [4] is divided into several not of uniform size and people arranged that is centrosymmetric
Work magnetic conductor unit [5], each artificial magnetic conductor unit [5] is rectangular metal paster.
Antenna the most according to claim 1, it is characterised in that described two adjacent artificial magnetic conductor unit [5]
Between be provided with narrow gap [9].
Antenna the most according to claim 2, it is characterised in that replace with the rectangular metal paster of small shearing
Artificial magnetic conductor unit [5].
Antenna the most according to claim 1, it is characterised in that four coaxial feed probe [3] are divided into two groups,
Difference coaxial feed mode is used to be respectively cross paster antenna [1] power supply, wherein two on horizontal axis
It is differential signal between coaxial probe, is differential signal between two coaxial probes on vertical axis.
Antenna the most according to claim 1, it is characterised in that upper layer medium substrate [2] and layer dielectric substrate
[7] DIELECTRIC CONSTANT εrBeing [2.2,10.2], thickness H is [0.01 λ, 0.1 λ], and wherein λ is free space wavelength.
6. according to the antenna described in claim 1 or 3, it is characterised in that the length of artificial magnetic conductor unit [5] and width
For [0.03 λ, 0.26 λ], the width of narrow gap [9] is [0.001 λ, 0.015 λ], the length of small shearing [8] and a width of
[0.001λ,0.015λ]。
Antenna the most according to claim 1, it is characterised in that cross paster antenna [1] is a length of
[0.1λg,0.75λg], a width of [0.1 λg,0.5λg], wherein λgMedium effective wavelength for upper layer medium substrate [2].
8. according to the antenna described in claim 1 or 3, it is characterised in that described artificial magnetic conductor reflecting plate [4] quilt
It is divided into 16 or 32 independent artificial magnetic conductor unit [5], described independent artificial magnetic conductor unit [5] edge
Horizontal axis and vertical axis the most symmetrically structure,
For horizontal polarization, artificial magnetic conductor unit [5] often row each unit length along the y-axis direction is consistent, but not
Length with row is different,
For vertical polarization, artificial magnetic conductor unit [5] each column each unit length along the x-axis direction is consistent, but not
The length of same column is different,
The length and width of the artificial magnetic conductor unit [5] on diagonal are all consistent, are square structures.
Antenna the most according to claim 8, it is characterised in that metal floor [6] corner is cut.
Antenna the most according to claim 8 or claim 9, it is characterised in that
The length of artificial magnetic conductor unit [5] and a width of [0.03 λ, 0.26 λ], the width of narrow gap [9] is
[0.001 λ, 0.015 λ], the length of small shearing [8] and a width of [0.001 λ, 0.015 λ];
Upper layer medium substrate [2] and the DIELECTRIC CONSTANT ε of layer dielectric substrate [7]rBeing [2.2,10.2], thickness H is equal
For [0.01 λ, 0.1 λ], wherein λ is free space wavelength;
Paster antenna [1] is cross-shaped configuration, is printed on upper layer medium substrate [2] upper surface center, and it is a length of
[0.1λg,0.75λg], a width of [0.1 λg,0.5λg], wherein λgMedium effective wavelength for upper layer medium substrate [2].
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