CN103001000B - A kind of artificial electromagnetic material with broadband high refraction index and low dispersion characteristics - Google Patents
A kind of artificial electromagnetic material with broadband high refraction index and low dispersion characteristics Download PDFInfo
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- CN103001000B CN103001000B CN201110275377.4A CN201110275377A CN103001000B CN 103001000 B CN103001000 B CN 103001000B CN 201110275377 A CN201110275377 A CN 201110275377A CN 103001000 B CN103001000 B CN 103001000B
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Abstract
The present invention relates to a kind of artificial electromagnetic material with broadband high refraction index and low dispersion characteristics, comprise at least one artificial electromagnetic material lamella, each artificial electromagnetic material lamella comprises the first substrate and second substrate that are oppositely arranged, described first substrate on the surface of second substrate, be attached with at least one man-made microstructure, described each man-made microstructure comprise about at least two arrange I-shaped.The artificial electromagnetic material of this structure has higher refractive index in wider frequency band range and variations in refractive index is relatively more steady, and can meet the demand of special occasions, such as the field such as semiconductor manufacturing and antenna manufacture, has broad application prospects.
Description
Technical field
The present invention relates to a kind of artificial electromagnetic material, more particularly, relate to a kind of artificial electromagnetic material with broadband high refraction index and low dispersion characteristics.
Background technology
Artificial electromagnetic material, is commonly called as Meta Materials, is a kind of novel artificial synthetic material that can produce response to electromagnetic wave, is made up of substrate and the man-made microstructure be attached on substrate.Due to the structure with certain geometrical pattern that man-made microstructure is normally arranged into by electric conducting material, therefore, it is possible to produce response to electromagnetic wave, thus making Meta Materials entirety embody the electromagnetic property being different from substrate, such as DIELECTRIC CONSTANT ε is different with magnetic permeability μ, according to refractive index formula
known, refractive index n is also different.
Existing artificial electromagnetic material, its man-made microstructure adopts the ELC structure shown in Fig. 3 usually, comprise the relative split ring of two openings and the connecting line being connected two split rings, its refractive index characteristic as shown in Figure 4, from refractive index characteristic curve chart: its refractive index ratio is lower, between 2GHz ~ 20GHz, more namely dispersion characteristics are higher for variations in refractive index, and broadband properties is also good not.So be difficult to meet the demand of some special occasions to high index of refraction wideband and low dispersion characteristics, the such as field such as semiconductor manufacturing and antenna manufacture.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect of prior art, provides a kind of artificial electromagnetic material with broadband high refraction index and low dispersion characteristics.
The technical solution adopted for the present invention to solve the technical problems is: a kind of artificial electromagnetic material with broadband high refraction index and low dispersion characteristics, comprise at least one artificial electromagnetic material lamella, each artificial electromagnetic material lamella comprises the first substrate and second substrate that are oppositely arranged, described first substrate on the surface of second substrate, be attached with at least one man-made microstructure, described each man-made microstructure comprise about at least two arrange I-shaped.
In a preferred embodiment of the invention, by assembling or fill between adjacent substrate the material that can connect the two, both are fixed together between adjacent substrate.
In a preferred embodiment of the invention, filling liquid raw substrate between adjacent substrate, adjacent substrate is fixed together by after hardening.
In a preferred embodiment of the invention, described man-made microstructure is attached on described substrate by etching.
In a preferred embodiment of the invention, described man-made microstructure is attached on described substrate by plating, brill quarter or photoetching.
In a preferred embodiment of the invention, described man-made microstructure carved by electronics or ion carve be attached on described substrate.
In a preferred embodiment of the invention, described substrate is made up of FR-4, pottery or polytetrafluoroethylene.
In a preferred embodiment of the invention, described substrate is made up of ferroelectric material, ferrite material or ferromagnetic material.
In a preferred embodiment of the invention, described man-made microstructure is made up of electric conducting material.
In a preferred embodiment of the invention, described man-made microstructure is made up of silver, copper, ITO (indium tin oxide), graphite or carbon nano-tube.
Implement artificial electromagnetic material of the present invention, there is following beneficial effect: the artificial electromagnetic material of this structure has higher refractive index in wider frequency band range and variations in refractive index is more steady, namely there are good wideband and low dispersion characteristics, the demand of special occasions can be met, such as the field such as semiconductor manufacturing and antenna manufacture, has broad application prospects.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of a lamella of artificial electromagnetic material of the present invention;
Fig. 2 is the structural representation of the artificial electromagnetic material of the stacking formation of artificial electromagnetic material lamella as shown in Figure 1;
Fig. 3 is that in prior art, man-made microstructure is the fractionation structural representation of each artificial electromagnetic material lamella of ELC structure;
Fig. 4 is the refractive index characteristic curve synoptic diagram of the artificial electromagnetic material shown in Fig. 3;
Fig. 5 is the fractionation structural representation of the artificial electromagnetic material lamella of shown in embodiment;
Fig. 6 is an I-shaped structural representation in Fig. 5 in each man-made microstructure;
Fig. 7 is the refractive index characteristic curve synoptic diagram of the artificial electromagnetic material shown in embodiment.
Embodiment
Present embodiments provide a kind of artificial electromagnetic material with broadband high refraction index and low dispersion characteristics, comprise at least one artificial electromagnetic material lamella 1, as shown in Figure 1, each artificial electromagnetic material lamella comprises two substrates be oppositely arranged and is attached to the man-made microstructure of the array arrangement between two substrates.When artificial electromagnetic material lamella 1 has multiple, each artificial electromagnetic material lamella 1 superposes along the direction perpendicular to lamella, and is assembled into one by the mode being mechanically connected, welding or bond, as shown in Figure 2.
As shown in Figure 5, artificial electromagnetic material lamella 1 comprises the plate shape substrates of two pieces of identical even uniform thickness, is respectively first substrate 2 and second substrate 3.Two substrates superpose in opposite directions, and first substrate 2 is attached with the man-made microstructure 4 of 2 × 3 array arrangements on the surface of second substrate 3.
The surface of two substrates is divided into respectively virtually multiple identical 4 millimeters × 4 millimeters square nets, an attachment man-made microstructure 4 in each square net, it is I-shaped that each man-made microstructure comprises 9 of arranging up and down.By filling liquid raw substrate or interconnected by assembling between first substrate 2 and second substrate 3.Man-made microstructure 4 is led to overetched mode and is attached on first substrate 3, and the modes such as certain man-made microstructure 4 also can adopt plating, bores quarters, photoetching, electronics quarter or ion quarter are adhered on the first substrate 2.Substrate adopts FR-4 material, and other materials can certainly be adopted to make, and such as pottery, polytetrafluoroethylene, ferroelectric material, ferrite material or ferromagnetic material are made.Man-made microstructure 4 adopts copper cash to make, and the electric conducting materials such as silver-colored line, ITO, graphite or carbon nano-tube can certainly be adopted to make.
As shown in Figure 6, the I-shaped employing width b=0.1 millimeter in the man-made microstructure in the present embodiment, the copper cash of thickness c=0.018 millimeter is made, and each I-shaped length a=3.9 millimeter, is highly 0.3 millimeter.
Its refractive index characteristic of the artificial electromagnetic material of the present embodiment as shown in Figure 7, in wider frequency range, (0 ~ 20GHz) refractive index very steadily has good broadband properties and low dispersion characteristics, and refractive index is all greater than 8.225 and has higher refractive index, known compared with the refractive index of the artificial electromagnetic material of ELC structure in prior art, artificial electromagnetic material provided by the invention has better refractive index characteristic, the demand of special occasions can be met, such as the field such as semiconductor manufacturing and antenna manufacture, has broad application prospects.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (8)
1. one kind has the artificial electromagnetic material of broadband high refraction index and low dispersion characteristics, it is characterized in that, comprise at least one artificial electromagnetic material lamella, each artificial electromagnetic material lamella comprises the first substrate and second substrate that are oppositely arranged, described first substrate on the surface of second substrate, be attached with at least one man-made microstructure, each described man-made microstructure comprise about at least two arrange I-shaped;
Filling liquid raw substrate between adjacent substrate, adjacent substrate is fixed together by after hardening.
2. artificial electromagnetic material according to claim 1, is characterized in that, described man-made microstructure is attached on described substrate by etching.
3. artificial electromagnetic material according to claim 1, is characterized in that, described man-made microstructure is carved by plating, brill or photoetching is attached on described substrate.
4. artificial electromagnetic material according to claim 1, is characterized in that, described man-made microstructure is carved by electronics or ion is attached on described substrate quarter.
5., according to the arbitrary described artificial electromagnetic material of Claims 1-4, it is characterized in that, described substrate is made up of FR-4, pottery or polytetrafluoroethylene.
6., according to the arbitrary described artificial electromagnetic material of Claims 1-4, it is characterized in that, described substrate is made up of ferroelectric material, ferrite material or ferromagnetic material.
7., according to the arbitrary described artificial electromagnetic material of Claims 1-4, it is characterized in that, described man-made microstructure is made up of electric conducting material.
8. artificial electromagnetic material according to claim 7, is characterized in that, described man-made microstructure is made up of silver, copper, ITO, graphite or carbon nano-tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110275377.4A CN103001000B (en) | 2011-09-16 | 2011-09-16 | A kind of artificial electromagnetic material with broadband high refraction index and low dispersion characteristics |
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| CN201110275377.4A CN103001000B (en) | 2011-09-16 | 2011-09-16 | A kind of artificial electromagnetic material with broadband high refraction index and low dispersion characteristics |
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| CN103001000A CN103001000A (en) | 2013-03-27 |
| CN103001000B true CN103001000B (en) | 2015-10-21 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101389998A (en) * | 2004-07-23 | 2009-03-18 | 加利福尼亚大学董事会 | Metamaterials |
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| US9116302B2 (en) * | 2008-06-19 | 2015-08-25 | Ravenbrick Llc | Optical metapolarizer device |
| JP5516407B2 (en) * | 2008-09-11 | 2014-06-11 | 日本電気株式会社 | Structure, antenna, communication device, and electronic component |
| CN102800973B (en) * | 2011-06-17 | 2014-07-23 | 深圳光启高等理工研究院 | Broadband artificial electromagnetic material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101389998A (en) * | 2004-07-23 | 2009-03-18 | 加利福尼亚大学董事会 | Metamaterials |
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