CN207098066U - Lens antenna based on Novel meta-material cellular construction - Google Patents
Lens antenna based on Novel meta-material cellular construction Download PDFInfo
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- CN207098066U CN207098066U CN201721103759.8U CN201721103759U CN207098066U CN 207098066 U CN207098066 U CN 207098066U CN 201721103759 U CN201721103759 U CN 201721103759U CN 207098066 U CN207098066 U CN 207098066U
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Abstract
The utility model discloses a kind of lens antenna based on Novel meta-material cellular construction, wherein metamaterial modular construction includes medium substrate and the man-made microstructure being arranged on medium substrate.And constitute metamaterial sheet lens with some size identical metamaterial units.The man-made microstructure cross section of metamaterial unit is the combination of counterpart resonant ring and short metal wire, by changing the size of resonant ring and the length of short metal wire, to adjust the resonant frequency of Meta Materials and negative refractive power.The utility model when on electromagnetic wave incident to metamaterial unit, obtains required EMR electromagnetic resonance so that Meta Materials obtain equivalent negative refractive index near working frequency by the man-made microstructure of the attachment given shape on FR4 epoxy glass fabric substrates.The utility model is used as lens by the way that metamaterial sheet is placed on above paster antenna, the gain of antenna is significantly improved, and the impedance bandwidth of dielectric lens antenna also substantially increases with gain bandwidth, realizes broadband character.
Description
Technical field
It the utility model is related to a kind of lens antenna based on Novel meta-material cellular construction, more particularly to a kind of negative refraction
The lens antenna that rate Meta Materials are formed, belongs to electrician and electromagnetism new material technology field.
Background technology
Certain relation, i.e. n be present with the magnetic conductivity of the material and dielectric constant in the refractive index of material2=ε(ω)μ(ω), show
So, when magnetic conductivity and dielectric constant are simultaneously negative value, refractive index n<0.Based on the idea, Russian scientist Victor
A kind of material with negative index is referred to as Meta Materials by Veselago, also known as super medium.According to the difference of application field, super material
Material can be divided into dielectric constant again and magnetic conductivity be double negative Meta Materials of negative value, magnetic conductivity for negative value the negative Meta Materials of magnetic list with
And dielectric constant bears Meta Materials for the electricity of negative value.Due to the presence of man-made microstructure, each metamaterial unit, which has, is different from base
The electromagnetic property of plate in itself, therefore the Meta Materials that all metamaterial units are formed show special response to electric field and magnetic field
Characteristic.By designing different concrete structures and shape to man-made microstructure, thus it is possible to vary the response characteristic of whole Meta Materials.
With left hands such as symmetrical ring structure, Ω types structure, double S types structures, symmetrical mirror frame-type, I-shaped structure, double Z shaped structures
Material cell is representative, by inside construction unit produce electric resonance, magnetic resonance, make total formed electro-plasma and
Magnetopasma, so as to produce negative permittivity and negative magnetoconductivity.Although various new structures are updated, super material is realized
Expect that the principle of characteristic does not change, the plasma effect or electric resonance effect being had in itself by structure realize that negative permittivity is imitated
Should, negative magnetoconductivity is realized by magnetic resonance effect, new structure still needs to the bilateral etch structures unit in medium substrate, is not easy to
Higher frequency range application.
For general micro-strip paster antenna, be characterized in efficiency high, small volume but impedance band is narrower, directionality compared with
Weak, power can not be gathered in main radiation direction.In higher frequency band, the inferior position of paster antenna is then more prominent, is unfavorable for reality
Apply on border.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of lens day based on Novel meta-material cellular construction
Line, it is a kind of double negative metamaterial units of unilateral etching, and the lens antenna of lamella is formed according to it, solves high band paster
The directionality difference technical problem of antenna.
The utility model uses following technical scheme to solve above-mentioned technical problem：
The utility model provides a kind of lens antenna based on Novel meta-material cellular construction, including the super material being placed in parallel
Tablet layer and square patch antenna, the metamaterial sheet are located at the top of square patch antenna, and metamaterial sheet and square
The air gap between paster antenna be present, the metal backing face of the two is relative；
The metamaterial sheet is made up of several metamaterial modular constructions of array arrangement, each metamaterial unit
Structure includes artificial metal's micro-structural of medium substrate and medium substrate surface, and artificial metal's micro-structural includes counterpart resonance
Ring and two metal lines, the counterpart resonant ring are made up of two identical open rectangle rings, and two open rectangle rings
Opening is relative；In each open rectangle ring a metal line is connected with the side relative with opening；Adjacent metamaterial modular construction
Substrate, metal wire be connected, form antenna lens；
The square patch antenna includes medium substrate, and the upper surface of medium substrate is provided with two square patch and company
The metal band of two square patch is connect, lower surface whole coating metal layer forms paster antenna as earth plate.
As further prioritization scheme of the present utility model, the opening of the open rectangle ring is 0.6mm.
As further prioritization scheme of the present utility model, the length of the metal wire is 0.6mm, width 0.1mm.
As further prioritization scheme of the present utility model, the medium substrate is epoxy resin medium substrate.
As further prioritization scheme of the present utility model, the metal wire is copper cash.
As further prioritization scheme of the present utility model, Meta Materials lens and square patch antenna are led to by four nylon
Post holes is fixedly connected.
As further prioritization scheme of the present utility model, the lens antenna includes at least one metamaterial sheet,
Each metamaterial sheet is placed in parallel.
, can be further by being placed in parallel multiple metamaterial sheets as further prioritization scheme of the present utility model
The radiances such as the directionality of lens antenna are improved, but return loss can also greatly increase, visual concrete condition determines to place
Metamaterial sheet number.
The utility model compared with prior art, has following technique effect using above technical scheme：The utility model
In metamaterial modular construction the two-sided combination of classical resonant ring and metal wire is incorporated into the same face of medium substrate, simplify
Processing；Cellular construction cross section is the combination of counterpart resonant ring and short metal wire, passes through the size for changing resonant ring and short gold
Belong to the length of line, to adjust the resonant frequency of Meta Materials and negative refractive power；The present invention is by FR4 epoxy glass fabric substrates
Adhere to the cellular construction of given shape, when on electromagnetic wave incident to metamaterial unit, obtain required EMR electromagnetic resonance so that be super
Material obtains equivalent negative refractive index near working frequency；The present invention is by the way that metamaterial sheet is placed on reference to paster day
Lens are used as above line, the gain of antenna is significantly improved, and the impedance bandwidth and gain bandwidth of dielectric lens antenna
Also substantially increase, realize broadband character.
Brief description of the drawings
Fig. 1 is the tomograph of the present invention.
Fig. 2 is Meta Materials lens periodic unit structural representation.
Fig. 3 is Meta Materials lens top view.
Fig. 4 is the tomograph of square patch antenna.
Fig. 5 is square patch antenna top view.
Fig. 6 is S parameter emulation and the measured drawing of lens antenna.
Fig. 7 is the gain of lens antenna with frequency emulation and measured drawing.
Fig. 8 is that lens antenna emulates directional diagram and measured drawing in 16.4GHz E faces.
Embodiment
The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings：
The present invention provides a kind of negative-index metamaterial lens, and material object is a metamaterial sheet, and lamella is in including multiple
The metamaterial unit of array arrangement.Each metamaterial unit includes unilateral artificial metal's micro-structural and medium substrate, further
Cellular construction integration is realized, simplifies processing.
Pass through the design of Novel meta-material cellular construction, reflection phase of the Meta Materials lens in square patch antenna working frequency range
Position is in positive slope with frequency, meets lens antenna condition of resonance, improves the gain bandwidth of antenna.
When on electromagnetic wave incident to double negative Meta Materials lens, counterpart resonant ring and short metal wire in each metamaterial unit
Produce electromagnetic response so that the reflection and transmission of electromagnetic wave have certain rule, externally macroscopically show in lens antenna
There is equivalent negative refraction in working frequency, so as to gather paster antenna spheric wave front, significantly improve antenna gain
With directionality.
Further, metal wire is copper cash, can process the Meta Materials using pcb board printing technology from copper cash, favorably
In by Meta Materials industrialization.
Further, medium substrate is epoxy resin（FR4）Medium substrate, epoxy resin medium substrate are easy to shaping, matter
Amount is light, intensity is high, modulus is big, good corrosion resistance, excellent electrical property, can reduce the cost of manufacture of Meta Materials.
As shown in figure 1, the structural representation of double negative Meta Materials lens antennas provided by the invention, this pair of negative Meta Materials lens
Arranged by metamaterial unit 9 × 9, each unit contains the epoxy resin medium substrate that thickness is 1.575mm, dielectric constant
4.3, and unilateral man-made microstructure.The man-made microstructure is made up of counterpart resonant ring and short metal wire, wherein counterpart resonant ring
Internal diameter wide 2.2mm, high 0.4mm, be open 0.6mm, and the length of short metal wire is 0.6mm, and the metal line-width of man-made microstructure
It is 0.1mm.The size of Meta Materials lens periodic structure determines that antenna can improve the working frequency range of gain.Metal level is every
Can the selection of dimension and shape be also related to the requirement that meet all channel antenna for phase.
Counterpart resonance ring structure has magnetic resonance characteristic, and short metal wire has electric resonance characteristic, and two kinds of structures are combined
To metamaterial unit periodic unit structure chart as shown in Figure 2.When incidence wave is plane wave, and magnetic field polarised direction is perpendicular to counterpart
Resonant ring, then it can produce ring current.Resonant ring opening can be equivalent to electric capacity, to can then be equivalent to mutual electrification between opening
Road, caused resonance effect make counterpart resonant ring generate equivalent negative magnetoconductivity effect.When the unit periodic arrangement, counterpart
Short metal wire structure above and below resonant ring can be similar to metal bar array, so as to realize that dielectric constant is by electric plasma effect
It is negative.By the size, openings of sizes, extended distance, metal line-width and short wire lengths, the spacing that control counterpart resonant ring
Etc. parameter, when realizing that double negativity matter produce in 16.3GHz-17GHz frequency ranges simultaneously, Meta Materials embody DNG feature,
Including negative index effect, retonation wave, reversed Doppler effect etc..Negative-index metamaterial can be reached by negative refraction
Gather the effect of electromagnetic wave, significantly the spheric wave front of paster antenna can be improved as close to plane wave front, so as to improve antenna
Directionality and gain.
The embodiment of double negative Meta Materials lens provided by the invention, the metal wire in man-made microstructure is copper cash,
Medium substrate is FR4 epoxy resin medium substrates, and copper cash one side is applied on the surface of medium substrate.Man-made microstructure as shown in Figure 2
Copper cash thickness is 0.07mm, and the dielectric constant of copper line width 0.1mm, FR4 medium substrate is 4.3, and the tangent value of loss angle is
0.025, FR4 dielectric substrate thickness is 0.4mm, and the length of side of metamaterial unit is 2.5mm.Meta Materials lens sizes as shown in Figure 3
For 22.5mm × 22.5mm, and the metamaterial unit at corner is little due to being influenceed on overall lenses, is changed to fix Meta Materials saturating
The nylon through post hole of mirror, nylon column opposite side are adhesively fixed with glue and antenna substrate.Square patch antenna as shown in Figure 4 by
Rogers RT5880 medium substrates form with surface metal coating.The dielectric constant of Rogers RT5880 medium substrates is 2.2,
The tangent value of loss angle is that the thickness of 0.0009, Rogers RT5880 medium substrates is 1.575mm, long 24.12mm, wide
20.3mm.Underlying dielectric substrate surface whole coating metal layer, as earth plate.As shown in figure 5, square patch metal is grown
7.21mm, wide 5.03mm, side feeder line long 3.417mm, wide 1.885mm, feeder line long 6.128mm, wide 4.852mm are same by what is welded
Axis sub-miniature A connector is fed.
The antenna is emulated using 3 D electromagnetic simulation software（Working frequency 16.3-17GHz）, as shown in Figure 6.Antenna returns
Ripple loss has reached below -10dB in working frequency range, and relative bandwidth is greatly improved.Antenna is in working frequency range 3dB
Gain bandwidth by the design as shown in fig. 7, be significantly improved.Illustrate that this design has good broadband performance.From
As can be seen that E face half-power radiation witdth of the lens antenna in 16.4GHz is much smaller than simple square paster antenna, antenna in Fig. 8
Directionality be significantly improved.
Double negative Meta Materials technologies are combined by the utility model with lens antenna technology, artificial using Novel meta-material unit
The bandwidth of antenna has been widened in the design of micro-structural, improves directionality and gain.Wherein metamaterial modular construction includes medium base
Plate and the man-made microstructure being arranged on medium substrate.And constitute metamaterial sheet with some size identical metamaterial units
Lens.The man-made microstructure cross section of metamaterial unit is the combination of counterpart resonant ring and short metal wire, by changing resonant ring
Size and short metal wire length, to adjust the resonant frequency of Meta Materials and negative refractive power.The present invention is by FR4 rings
Adhere to the man-made microstructure of given shape on oxygen glass cloth substrate, when on electromagnetic wave incident to metamaterial unit, obtain required
EMR electromagnetic resonance so that Meta Materials obtain equivalent negative refractive index near working frequency.The present invention is by by Meta Materials piece
Layer is placed on is used as lens above paster antenna, the gain of antenna is significantly improved, and dielectric lens antenna
Impedance bandwidth also substantially increases with gain bandwidth, realizes broadband character.The present invention is antenna overall structure and uncomplicated,
Realization easy to process, there is certain application prospect.
It is described above, the embodiment only in the utility model, but the scope of protection of the utility model not office
It is limited to this, any people for being familiar with the technology is in the technical scope disclosed by the utility model, it will be appreciated that the conversion expected is replaced
Change, should all cover within scope of the present utility model, therefore, the scope of protection of the utility model should be with claim
The protection domain of book is defined.
Claims (7)
1. the lens antenna based on Novel meta-material cellular construction, it is characterised in that including the metamaterial sheet that is placed in parallel and
Square patch antenna, the metamaterial sheet are located at the top of square patch antenna, and metamaterial sheet and square patch antenna
Between the air gap be present, the metal backing face of the two is relative；
The metamaterial sheet is made up of several metamaterial modular constructions of array arrangement, each metamaterial modular construction
Artificial metal's micro-structural including medium substrate and medium substrate surface, artificial metal's micro-structural include counterpart resonant ring with
And two metal lines, the counterpart resonant ring is made up of two identical open rectangle rings, and the opening of two open rectangle rings
Relatively；In each open rectangle ring a metal line is connected with the side relative with opening；The base of adjacent metamaterial modular construction
Plate, metal wire are connected, and form antenna lens；
The square patch antenna includes medium substrate, and the upper surface of medium substrate is provided with two square patch and connection two
The metal band of individual square patch, lower surface whole coating metal layer form paster antenna as earth plate.
2. the lens antenna according to claim 1 based on Novel meta-material cellular construction, it is characterised in that the opening
The opening of straight-flanked ring is 0.6mm.
3. the lens antenna according to claim 1 based on Novel meta-material cellular construction, it is characterised in that the metal
The length of line is 0.6mm, width 0.1mm.
4. the lens antenna according to claim 1 based on Novel meta-material cellular construction, it is characterised in that the medium
Substrate is epoxy resin medium substrate.
5. the lens antenna according to claim 1 based on Novel meta-material cellular construction, it is characterised in that the metal
Line is copper cash.
6. the lens antenna according to claim 1 based on Novel meta-material cellular construction, it is characterised in that Meta Materials are saturating
Mirror is fixedly connected with square patch antenna by four nylon through post holes.
7. the lens antenna according to claim 1 based on Novel meta-material cellular construction, it is characterised in that the lens day
Line includes at least one metamaterial sheet, and each metamaterial sheet is placed in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721103759.8U CN207098066U (en) | 2017-08-31 | 2017-08-31 | Lens antenna based on Novel meta-material cellular construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721103759.8U CN207098066U (en) | 2017-08-31 | 2017-08-31 | Lens antenna based on Novel meta-material cellular construction |
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| CN207098066U true CN207098066U (en) | 2018-03-13 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638466A (en) * | 2018-12-27 | 2019-04-16 | 黑龙江工程学院 | A kind of Meta Materials frequency selection surface texture for improving ultra-wideband antenna gain |
| CN110112552A (en) * | 2019-05-09 | 2019-08-09 | 长安大学 | A kind of X-band negative magnetic-inductive capacity material wideband microstrip antenna and preparation method thereof |
| CN110739549A (en) * | 2019-10-29 | 2020-01-31 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
| CN110943303A (en) * | 2019-10-29 | 2020-03-31 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
| CN112259970A (en) * | 2020-09-28 | 2021-01-22 | 东莞同济大学研究院 | Broadband wave-transmitting absorption-transmission integrated electromagnetic superstructure |
| CN112952393A (en) * | 2021-01-29 | 2021-06-11 | 佛山蓝谱达科技有限公司 | Super surface unit, lens and lens antenna using super surface unit and lens |
| CN113839213A (en) * | 2021-09-08 | 2021-12-24 | 广东盛路通信科技股份有限公司 | Metamaterial structure and antenna |
-
2017
- 2017-08-31 CN CN201721103759.8U patent/CN207098066U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638466A (en) * | 2018-12-27 | 2019-04-16 | 黑龙江工程学院 | A kind of Meta Materials frequency selection surface texture for improving ultra-wideband antenna gain |
| CN110112552A (en) * | 2019-05-09 | 2019-08-09 | 长安大学 | A kind of X-band negative magnetic-inductive capacity material wideband microstrip antenna and preparation method thereof |
| CN110739549A (en) * | 2019-10-29 | 2020-01-31 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
| CN110943303A (en) * | 2019-10-29 | 2020-03-31 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
| CN110739549B (en) * | 2019-10-29 | 2021-05-11 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
| CN110943303B (en) * | 2019-10-29 | 2021-11-09 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
| CN112259970A (en) * | 2020-09-28 | 2021-01-22 | 东莞同济大学研究院 | Broadband wave-transmitting absorption-transmission integrated electromagnetic superstructure |
| CN112259970B (en) * | 2020-09-28 | 2022-08-09 | 东莞同济大学研究院 | Broadband wave-transmitting absorption-transmission integrated electromagnetic superstructure |
| CN112952393A (en) * | 2021-01-29 | 2021-06-11 | 佛山蓝谱达科技有限公司 | Super surface unit, lens and lens antenna using super surface unit and lens |
| CN112952393B (en) * | 2021-01-29 | 2024-04-19 | 佛山蓝谱达科技有限公司 | Super-surface unit, lens and lens antenna using same |
| CN113839213A (en) * | 2021-09-08 | 2021-12-24 | 广东盛路通信科技股份有限公司 | Metamaterial structure and antenna |
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