CN109586040A - Planar structure two-band class butterfly left-handed material unit - Google Patents
Planar structure two-band class butterfly left-handed material unit Download PDFInfo
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- CN109586040A CN109586040A CN201910011852.3A CN201910011852A CN109586040A CN 109586040 A CN109586040 A CN 109586040A CN 201910011852 A CN201910011852 A CN 201910011852A CN 109586040 A CN109586040 A CN 109586040A
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- patch
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- butterfly
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- 239000000463 material Substances 0.000 title claims abstract description 47
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 16
- 239000010432 diamond Substances 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
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Abstract
The invention discloses planar structure two-band class butterfly left-handed material units, are related to wireless communication field.The metamaterial structure unit includes dielectric-slab (4) and the class butterfly patch (5) being printed on dielectric-slab (4)；Class butterfly patch (5) is made of two trapezoidal patches of hollow out (3,3 ') among the patch (1,1 ') of class butterfly both wings, intermediate hollow out diamond shape patch (2) and both wings patch (1,1 ')；The patch (1,1 ') of class butterfly both wings is symmetrical arranged along intermediate diamond shape patch (2), and towards outer openings (6,6 ');Hollow out diamond shape patch (2) each side length is equal;Two intermediate trapezoidal patches of hollow out (3,3 ') of both wings patch (1,1 ') are symmetrical arranged along intermediate diamond shape patch (2), and inside side opening (7,7 '), opening direction is with the opening direction of both wings patch on the contrary, opening size is identical.The metamaterial modular construction is simple, it is easy to accomplish, it is at low cost.
Description
Technical field
The invention belongs to wireless communication fields, are related to a kind of left-handed material unit of planar structure two-band.
Background technique
Left-handed material is a kind of Meta Materials the most classical, is defined as in certain frequency ranges while having negative permittivity
And negative magnetoconductivity.It is made of the artificial cellular construction that periodic size is far smaller than operation wavelength, this kind of material can be presented naturally
Extraordinary physical property not available for material.
Early in nineteen sixty-eight, the theoretical physicist Veselago of the Soviet Union passes through the careful research hair to maxwell equation group
It is existing, when propagation of the electromagnetic wave in the material that magnetic conductivity and dielectric constant are negative value, the phase velocity and group velocity of Electromagnetic Wave Propagation
Direction show the state of reverse phase so that electric field E, magnetic field H and tri- vector of direction of propagation K are in left hand relationship, present
The left hand helix rule relative to right-hand rule is gone out, therefore this material is defined as LHM.
1996, professor Pendry of Britain's Imperial College of Science and Technology constructed low frequency using filament in an experiment
When plasma material, it was found that possess negative permittivity in the fine wire of periodic arrangement.1999, professor Pendry etc.
Further provide split ring resonator (Split Ring Resonator, SRR) structure.
Hereafter, a series of sub-wavelength structure left-handed material unit of classics is put forward one after another, such as: with negative index
The Ω type left-handed material of property provides negative magnetoconductivity by opening resonance loop structure, I-shape construction provides the group of negative permittivity
Mould assembly metamaterial structure, the Meta Materials etc. being made of two various sizes of S-shaped resonant rings.
The common trait of above-mentioned Meta Materials is that the wave vector direction of incidence wave must be in same water with the plane of metamaterial unit
Plane constrains the scope of application of such Meta Materials significantly, it is difficult to be applied to practical.And then there have scholar to propose a kind of plane to be super
Material structure, which may make up with time-limited metal wire, in the case where electromagnetic wave vertical incidence, in same frequency range
Negative magnetoconductivity can not only be generated, moreover it is possible to generate negative permittivity.Compared to metamaterial structure before, plane metamaterial structure
Size on cell propagation direction can be suitable with irradiation electromagnetic wavelength, thus has and be more widely applied range.Obviously,
The Meta Materials of plane possess more values for being worth research compared with this kind of Meta Materials being made of metal wire and split ring resonator.
Planar structure two-band class butterfly left-handed material unit of the present invention, has the advantages of simple structure and easy realization, at low cost.
The content of present invention has no open report same as the present invention by literature search.
Summary of the invention
The object of the present invention is to provide planar structure two-band class butterfly left-handed material units.It has the advantages of simple structure and easy realization,
It is at low cost, it is formed simultaneously the left hand frequency band of two-band.
Planar structure two-band class butterfly left-handed material unit, it is characterised in that: the metamaterial structure unit includes medium
Plate (4) and the class butterfly patch (5) being printed on dielectric-slab (4)；Class butterfly patch (5) by class butterfly both wings patch (1,
1 '), two trapezoidal patches of hollow out (3,3 ') among intermediate hollow out diamond shape patch (2) and both wings patch are constituted；Class butterfly two
The patch (1,1 ') of the wing is symmetrical arranged along intermediate diamond shape patch (2), and towards outer openings (6,6 ');Hollow out diamond shape patch (2)
Each side length is equal;Two intermediate trapezoidal patches of hollow out (3,3 ') of both wings patch (1,1 ') are along intermediate diamond shape patch (2)
It is symmetrical arranged, inside side opening (7,7 '), opening direction is with the opening direction of both wings patch on the contrary, opening size is identical.
The planar structure two-band class butterfly left-handed material unit, it is characterised in that: both wings patch (1,1 ') and in
Between two trapezoidal patches of hollow out (3,3 ') each two at gap (6,6 ', 7,7 ') generate magnetic resonance, adjustment gap it is adjustable
The equivalent capacity of the structure.
The planar structure two-band class butterfly left-handed material unit, it is characterised in that: it is humorous that class butterfly patch (5) generates electricity
Vibration adjusts the whole equivalent inductance of size adjustable of class butterfly patch (5).
The planar structure two-band class butterfly left-handed material unit, can be realized stronger resonance, reduction unit size.
The configuration of the present invention is simple, it is easy to accomplish, it is at low cost, it is formed simultaneously the left hand frequency band of two-band.
Detailed description of the invention
The structural schematic diagram of Fig. 1 class butterfly left-handed material unit
The amplitude of the S parameter of Fig. 2 class butterfly left-handed material unit
The phase of the S parameter of Fig. 3 class butterfly left-handed material unit
The dielectric constant of Fig. 4 class butterfly left-handed material unit
The Effective permeability of Fig. 5 class butterfly left-handed material unit
The refractive index of Fig. 6 class butterfly left-handed material unit.
Specific embodiment
The explanation of specific embodiment is carried out to the present invention with reference to the accompanying drawing.
As shown in Figure 1, planar structure two-band class butterfly left-handed material unit includes dielectric-slab (4) and is printed on dielectric-slab
(4) the class butterfly patch (5) on；Patch (1,1 '), intermediate hollow out diamond shape patch of the class butterfly patch (5) by class butterfly both wings
(2) two trapezoidal patches of hollow out (3,3 ') and among both wings patch are constituted；The patch (1,1 ') of class butterfly both wings is along centre
Diamond shape patch (2) is symmetrical arranged, and towards outer openings (6,6 ');Hollow out diamond shape patch (2) each side length is equal;Both wings patch
Two intermediate trapezoidal patches of hollow out (3,3 ') of piece (1,1 ') are symmetrical arranged along intermediate diamond shape patch (2), inside side opening (7,
7 '), opening direction is with the opening direction of both wings patch on the contrary, opening size is identical.
The planar structure two-band class butterfly left-handed material unit, wherein both wings patch (1,1 ') and centre two
Gap (6,6 ', 7,7 ') generate magnetic resonance at each the two of the trapezoidal patch of hollow out (3,3 '), the adjustment adjustable structure in gap
Equivalent capacity.
The planar structure two-band class butterfly left-handed material unit, class butterfly patch (5) generate electric resonance, adjust class
The whole equivalent inductance of size adjustable of butterfly patch (5).
The planar structure two-band class butterfly left-handed material unit, using the Rogress RO4003 with a thickness of 0.8mm
Dielectric-slab, having a size of 5mmX5mm.
The scattering parameter that emulation obtains left-handed material unit of the invention is as shown in Figures 2 and 3, and wherein Fig. 2 describes S ginseng
Several amplitudes, Fig. 3 describe the phase of S parameter.From in Fig. 2 it is observed that distinguishing near 6.6GHz and 16GHz
There is the trough of S11 and the wave crest of S21, while it is seen in figure 3 that near 6.6GHz and 16GHz
Significantly changing occurs in the phase of S11 and S21, and thus deducibility class butterfly left-hand unit structure is in the two frequencies
Rate point is formed about left hand frequency band.
Parameter is effectively extracted using equivalent parameters extracting method, obtains having for such butterfly left-handed material unit
Effect parameter is as shown in Figure 4 and Figure 5, and wherein Fig. 4 is the effective dielectric constant of material cell, and Fig. 5 is effective magnetic conductance of material cell
Rate.Fig. 4 is shown, in the entire frequency range of 0-18GHz, the real part of effective dielectric constant in Fig. 50 hereinafter, provide
Effective permeability real part other than having at 6GHz and being positive at upward impulse wave and 11GHz-16GHz, remaining
Frequency range is below 0.The refraction of such butterfly left-handed material unit is obtained according to the realization mechanism of left-handed material negative index
Rate shows that the frequency range that the material cell refractive index is negative is 0GHz-11.5GHz and 15.3GHz- as shown in Fig. 6, in figure
17.5GHz, as the left hand frequency range of the material cell.Since two rings of this structural unit are because the difference resonance of size is in difference
Frequency point, to form the left hand frequency band of multiband.
Better embodiment of the invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be without departing from the purpose of the present invention
It makes a variety of changes.
Claims (4)
1. planar structure two-band class butterfly left-handed material unit, it is characterised in that: the metamaterial structure unit includes dielectric-slab
(4) and the class butterfly patch (5) that is printed on dielectric-slab (4)；Class butterfly patch (5) by class butterfly both wings patch (1,1 '),
Two intermediate trapezoidal patches of hollow out (3,3 ') of intermediate hollow out diamond shape patch (2) and both wings patch (1,1 ') are constituted；Class butterfly
The patch (1,1 ') of both wings is symmetrical arranged along intermediate diamond shape patch (2), and towards outer openings (6,6 ');Hollow out diamond shape patch
(2) each side length is equal;Two intermediate trapezoidal patches of hollow out (3,3 ') of both wings patch (1,1 ') are along intermediate diamond shape patch
(2) it is symmetrical arranged, inside side opening (7,7 '), opening direction is with the opening direction of both wings patch on the contrary, opening size is identical.
2. planar structure two-band class butterfly left-handed material unit according to claim 1, it is characterised in that: both wings patch
Gap (6,6 ', 7,7 ') generates magnetic resonance, adjustment at each the two of two trapezoidal patches of hollow out (3,3 ') of (1,1 ') and centre
The equivalent capacity of the adjustable structure in gap.
3. planar structure two-band class butterfly left-handed material unit according to claim 1, it is characterised in that: class butterfly patch
(5) electric resonance is generated, the whole equivalent inductance of size adjustable of class butterfly patch (5) is adjusted.
4. planar structure two-band class butterfly left-handed material unit according to claim 1, it is characterised in that: using with a thickness of
The Rogress RO4003 dielectric-slab of 0.8mm, having a size of 5mmX5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910011852.3A CN109586040A (en) | 2019-01-07 | 2019-01-07 | Planar structure two-band class butterfly left-handed material unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910011852.3A CN109586040A (en) | 2019-01-07 | 2019-01-07 | Planar structure two-band class butterfly left-handed material unit |
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| CN109586040A true CN109586040A (en) | 2019-04-05 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354815A (en) * | 2011-09-22 | 2012-02-15 | 中国人民解放军空军工程大学 | Broadband low-consumption left-handed material based on inclined triangular opening paired loops |
| WO2014019514A1 (en) * | 2012-07-31 | 2014-02-06 | 深圳光启创新技术有限公司 | Wide-frequency wave-absorbing metamaterial, electronic device and method for obtaining wide-frequency wave-absorbing metamaterial |
| CN105896094A (en) * | 2014-11-17 | 2016-08-24 | 中国矿业大学(北京) | Derived two-dimensional left-handed material structure |
| CN206059669U (en) * | 2016-07-13 | 2017-03-29 | 云南大学 | Antenna for base station based on LHM |
| CN107221753A (en) * | 2017-05-22 | 2017-09-29 | 西安电子科技大学 | Multiband LHM structure |
| CN210111042U (en) * | 2019-01-07 | 2020-02-21 | 云南大学 | Novel dual-band planar butterfly left-handed material |
-
2019
- 2019-01-07 CN CN201910011852.3A patent/CN109586040A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354815A (en) * | 2011-09-22 | 2012-02-15 | 中国人民解放军空军工程大学 | Broadband low-consumption left-handed material based on inclined triangular opening paired loops |
| WO2014019514A1 (en) * | 2012-07-31 | 2014-02-06 | 深圳光启创新技术有限公司 | Wide-frequency wave-absorbing metamaterial, electronic device and method for obtaining wide-frequency wave-absorbing metamaterial |
| CN105896094A (en) * | 2014-11-17 | 2016-08-24 | 中国矿业大学(北京) | Derived two-dimensional left-handed material structure |
| CN206059669U (en) * | 2016-07-13 | 2017-03-29 | 云南大学 | Antenna for base station based on LHM |
| CN107221753A (en) * | 2017-05-22 | 2017-09-29 | 西安电子科技大学 | Multiband LHM structure |
| CN210111042U (en) * | 2019-01-07 | 2020-02-21 | 云南大学 | Novel dual-band planar butterfly left-handed material |
Non-Patent Citations (1)
| Title |
|---|
| JING XIANG 等: "A broadband SIW antenna array at ku band with a low mutual coupling", 《2018 IEEE MTT-S INTERNATIONAL WIRELESS SYMPOSIUM (IWS)》 * |
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