CN102800979B - Broadband artificial electromagnetic material - Google Patents
Broadband artificial electromagnetic material Download PDFInfo
- Publication number
- CN102800979B CN102800979B CN201110179708.4A CN201110179708A CN102800979B CN 102800979 B CN102800979 B CN 102800979B CN 201110179708 A CN201110179708 A CN 201110179708A CN 102800979 B CN102800979 B CN 102800979B
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- artificial electromagnetic
- electromagnetic material
- artificial
- wideband
- annular structure
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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
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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
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
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- Aerials With Secondary Devices (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to a broadband artificial electromagnetic material, which comprises at least one base material and artificial micro structures attached to the base materials, wherein each artificial micro structure comprises an opening annular structure and an I-shaped structure partially embedded into the opening annular structure. By the artificial electromagnetic material with the structure, the refractive index is relatively large in a relatively wide frequency band range and is changed steadily; furthermore, the dielectric constant is gradually increased from zero within a certain frequency band; a requirement of a special occasion can be met, in particular the fields of semiconductor manufacturing, antenna manufacturing and the like; and the broadband artificial electromagnetic material has a wide application prospect.
Description
Technical field
The present invention relates to a kind of artificial electromagnetic material, more particularly, relate to a kind of wideband artificial electromagnetic material.
Background technology
Artificial electromagnetic material, is commonly called as super material, is a kind of novel artificial synthetic material that can respond electromagnetic wave generation, substrate and the artificial micro-structural being attached on substrate, consists of.The plane with certain geometrical pattern or stereochemical structure that artificial micro-structural is comprised of metal wire, such as forming annular, I-shaped metal wire etc.Artificial electromagnetic material can produce response to electromagnetic wave, thereby makes artificial electromagnetic material integral body embody the electromagnetic property that is different from substrate, and for example 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, the artificial electromagnetic material that its artificial micro-structural is generally I-shaped, has this structure, can only realize smaller refractive index.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, thereby design new artificial micro-structural, realizes a kind of wideband artificial electromagnetic material, and this artificial electromagnetic material can be realized high index and change more steady in wider frequency band.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of wideband artificial electromagnetic material, comprise base material and be attached to the artificial micro-structural on described base material, described artificial micro-structural comprises that an open annular structure and a part are nested in the I-shape construction of open annular structure inside.
In the preferred embodiment of the present invention, described artificial micro-structural also comprises at least one line segment being connected with the middle connecting line of described I-shape construction.
In the preferred embodiment of the present invention, described line segment is divided equally by described I-shaped middle connecting line.
In the preferred embodiment of the present invention, described line segment is parallel to each other.
In the preferred embodiment of the present invention, in described line segment, have at least a line segment to be positioned at the outside of open annular structure.
In the preferred embodiment of the present invention, described open annular structure is polygon.
In the preferred embodiment of the present invention, the kink of described open annular structure is arc.
In the preferred embodiment of the present invention, described open annular structure is circular or oval.
In the preferred embodiment of the present invention, described artificial micro-structural is made by copper cash or silver-colored line.
In the preferred embodiment of the present invention, described substrate is ceramic material, polytetrafluoroethylene, ferroelectric material, ferrite material, ferromagnetic material or FR-4.
Implement wideband artificial electromagnetic material of the present invention, there is following beneficial effect: refractive index is large and change more steady in wider frequency band range, and dielectric constant increases gradually by zero in certain frequency range, can meet the demand of special occasions, such as fields such as semiconductor manufacture and antenna manufactures.
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 wideband artificial electromagnetic material of the present invention;
Fig. 2 to Fig. 7 is the possible structural representation of artificial micro-structural;
Fig. 8 is the refractive index characteristic curve chart of the artificial electromagnetic material of wideband shown in Fig. 1;
Fig. 9 is the dielectric constant performance diagram of the artificial electromagnetic material of wideband shown in Fig. 1.
Embodiment
The present embodiment provides a kind of wideband artificial electromagnetic material, and its structure as shown in Figure 1, comprises at least one sheet of material, and when having a plurality of sheet of material, these sheet of material are along being stacked to together perpendicular to its surperficial direction.
Figure is as shown in 1, this material comprises the sheet of material 1 of 3 even uniform thickness, polylith sheet of material 1 stacks gradually along the direction (z direction of principal axis) perpendicular to base plan, between every two block of material lamellas 1, by certain packaging technology such as welding, riveted joint, the mode such as bonding, become as a whole or by filling the material liquid raw substrate for example that can connect the two, it is bonding by existing two sheet of material 1 after solidifying, thereby makes polylith sheet of material 1 form an integral body.
Each sheet of material 1 comprises substrate and is attached to the artificial micro-structural on substrate, substrate is divided into a plurality of identical column base board units that are mutually close to virtually, these base board units take x direction of principal axis as row, the vertical with it y direction of principal axis of take be leu time array arrangement.A material cell 2 of the common formation of artificial micro-structural on base board unit and base board unit; As shown in Figure 1, the material of the present embodiment can be regarded as by a plurality of material cell 2 and forms along three direction array arrangements of x, y, z, wherein, artificial micro-structural can by etching, plating, brill quarter, photoetching, electronics is carved or ion quarter etc. mode be attached on described base material.The material of artificial micro-structural is metal wire, uses the copper cash that cross section is rectangle here, and certainly metal wire also can be used other metal wires such as silver-colored line, and the cross section of metal wire can be also cylindric, flat or other shapes.The first artificial micro-structural 3 comprises that an opening rectangular configuration and a part are nested in the I-shape construction of open annular structure inside in the present embodiment, also comprise many line segments of being divided equally by the middle connecting line of I-shape construction, described line segment is positioned at the inside of opening rectangular configuration.A part for certain described line segment also can be positioned at the outside of opening rectangular configuration, as shown in Figure 7, the length of described line segment can equate also can be as shown in Figure 5 unequal, the kink of described open annular structure can for arc as shown in Figure 6, open annular structure can for circular, ellipse or polygon as shown in Figure 3 and Figure 4.Fig. 8 is the refractive index characteristic curve of electromagnetic wave while passing through this wideband artificial electromagnetic material, Fig. 9 is dielectric constant characteristic curve, refractive index (1GHz～6GHz) in wider frequency range is more stable and be all greater than 6 as shown in Figure 8, by corresponding dotted line, can know at this frequency range internal loss very low; The wideband artificial electromagnetic material of this structure (7.6GHz～9.5GHz) dielectric constant in certain band limits increases gradually by zero as shown in Figure 9.
When we need to use broadband properties or low-k characteristic in different frequency range, can realize by changing the size of artificial micro-structural.
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; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, also can make a lot of distortion to artificial micro-structural, within these all belong to protection of the present invention.
Claims (10)
1. a wideband artificial electromagnetic material, comprises base material and is attached to the artificial micro-structural on described base material, it is characterized in that, described artificial micro-structural comprises that an open annular structure and a part are nested in the I-shape construction of open annular structure inside.
2. wideband artificial electromagnetic material according to claim 1, is characterized in that, described artificial micro-structural also comprises at least one line segment being connected with the middle connecting line of described I-shape construction.
3. wideband artificial electromagnetic material according to claim 2, is characterized in that, described line segment is divided equally by described I-shaped middle connecting line.
4. wideband artificial electromagnetic material according to claim 2, is characterized in that, described line segment is parallel to each other.
5. wideband artificial electromagnetic material according to claim 2, is characterized in that, has at least a line segment to be positioned at the outside of open annular structure in described line segment.
6. according to the arbitrary described wideband artificial electromagnetic material of claim 1 to 5, it is characterized in that, described open annular structure is polygon.
7. according to the arbitrary described wideband artificial electromagnetic material of claim 1 to 5, it is characterized in that, the kink of described open annular structure is arc.
8. according to the arbitrary described wideband artificial electromagnetic material of claim 1 to 5, it is characterized in that, described open annular structure is circular or oval.
9. according to the arbitrary described wideband artificial electromagnetic material of claim 1 to 5, it is characterized in that, described artificial micro-structural is made by copper cash or silver-colored line.
10. according to the arbitrary described wideband artificial electromagnetic material of claim 1 to 5, it is characterized in that, described substrate is ceramic material, polytetrafluoroethylene, ferroelectric material, ferrite material, ferromagnetic material or FR-4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110179708.4A CN102800979B (en) | 2011-06-29 | 2011-06-29 | Broadband artificial electromagnetic material |
| PCT/CN2011/081391 WO2013000222A1 (en) | 2011-06-29 | 2011-10-27 | Artificial microstructure and artificial electromagnetic material applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110179708.4A CN102800979B (en) | 2011-06-29 | 2011-06-29 | Broadband artificial electromagnetic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102800979A CN102800979A (en) | 2012-11-28 |
| CN102800979B true CN102800979B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110179708.4A Active CN102800979B (en) | 2011-06-29 | 2011-06-29 | Broadband artificial electromagnetic material |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102800979B (en) |
| WO (1) | WO2013000222A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296446B (en) * | 2012-02-29 | 2017-06-30 | 深圳光启创新技术有限公司 | A kind of Meta Materials and MRI image enhancement devices |
| CN105789877B (en) * | 2016-05-11 | 2018-06-08 | 中国人民解放军空军工程大学 | Four wave beam micro-strips transmission array antenna and its design method based on super surface |
Citations (4)
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| CN101389998A (en) * | 2004-07-23 | 2009-03-18 | 加利福尼亚大学董事会 | Metamaterials |
| WO2010026906A1 (en) * | 2008-09-03 | 2010-03-11 | 株式会社村田製作所 | Metamaterial |
| CN101702067A (en) * | 2009-10-29 | 2010-05-05 | 电子科技大学 | Terahertz plane adsorbing material |
| CN101919109A (en) * | 2007-02-07 | 2010-12-15 | 台湾积体电路制造股份有限公司 | Design method for transmission lines using meta-materials |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454658C (en) * | 2005-05-31 | 2009-01-21 | 西北工业大学 | Antenna of handset of containing material in negative magnetic permeability |
| US7525711B1 (en) * | 2005-08-31 | 2009-04-28 | The United States Of America As Represented By The Secretary Of The Navy | Actively tunable electromagnetic metamaterial |
| KR100928027B1 (en) * | 2007-12-14 | 2009-11-24 | 한국전자통신연구원 | Metamaterial structures with negative permittivity, permeability and refractive index |
| CN102005637A (en) * | 2010-12-14 | 2011-04-06 | 哈尔滨工程大学 | Small microstrip antenna based on metamaterials |
-
2011
- 2011-06-29 CN CN201110179708.4A patent/CN102800979B/en active Active
- 2011-10-27 WO PCT/CN2011/081391 patent/WO2013000222A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101389998A (en) * | 2004-07-23 | 2009-03-18 | 加利福尼亚大学董事会 | Metamaterials |
| CN101919109A (en) * | 2007-02-07 | 2010-12-15 | 台湾积体电路制造股份有限公司 | Design method for transmission lines using meta-materials |
| WO2010026906A1 (en) * | 2008-09-03 | 2010-03-11 | 株式会社村田製作所 | Metamaterial |
| CN101702067A (en) * | 2009-10-29 | 2010-05-05 | 电子科技大学 | Terahertz plane adsorbing material |
Non-Patent Citations (2)
| Title |
|---|
| A. Vallecchi等.Metamaterial in Planar Technology Exhibiting Negative Refractive Index for Arbitrary Incident Plane Wave Polarization.《IEEE》.2008, |
| Metamaterial in Planar Technology Exhibiting Negative Refractive Index for Arbitrary Incident Plane Wave Polarization;A. Vallecchi等;《IEEE》;20081231;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102800979A (en) | 2012-11-28 |
| WO2013000222A1 (en) | 2013-01-03 |
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