CN102810760B - Novel metamaterial - Google Patents
Novel metamaterial Download PDFInfo
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- CN102810760B CN102810760B CN201110179890.3A CN201110179890A CN102810760B CN 102810760 B CN102810760 B CN 102810760B CN 201110179890 A CN201110179890 A CN 201110179890A CN 102810760 B CN102810760 B CN 102810760B
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Abstract
The invention relates to a novel metamaterial which comprises at least one material sheet layer; wherein each material sheet layer comprises a substrate and artificial micro structures attached to the substrate; each substrate is virtually divided into a plurality of substrate units arranged in an array mode, a pair of artificial micro structures are attached to each of the substrate units; and each pair of the artificial micro structures consist of a first artificial micro structure and a second artificial micro structure which are arranged on the substrate in parallel. The metamaterial has a high broadband dielectric constant in a certain frequency range, and the dielectric constant of the metamaterial is gradually increased from zero in another frequency range, so that requirements of specific occasions can be met.
Description
Technical field
The present invention relates to a kind of material, more particularly, relate to a kind of novel super material.
Background technology
Artificial electromagnetic material, is commonly called as super material, is a kind of novel artificial synthetic material, is the substrate be made up of nonmetallic materials and is attached on substrate surface or the multiple artificial micro-structural that is embedded in substrate inside forms.Substrate can be divided into multiple base board units that rectangular array is arranged virtually, on each base board unit, be attached with artificial micro-structural, thereby form a super material cell, whole super material is made up of a lot of so super material cell, just as crystal is to be made up of according to certain arranging countless lattices.Artificial micro-structural in each super material cell can be identical or incomplete same.What artificial micro-structural was made up of wire has certain geometric plane or stereochemical structure, for example, form annular, I-shaped wire etc.
Due to the existence of artificial micro-structural, each super material cell has the electromagnetic property that is different from substrate itself, and the super material that therefore all super material cell form presents special response characteristic to Electric and magnetic fields; By to the different concrete structure of artificial microstructure design and shape, can change the response characteristic of whole super material.
The dielectric constant of common material changes along with the variation of frequency, in the frequency range of paying close attention to, conventionally only has a resonance peak, and as shown in Figure 1, in low-loss situation, dielectric constant is greater than 10 conventionally.In some application scenario, particularly large scale integrated circuit, need to use dielectric constant start from scratch change material, common material generally meet.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of novel super material, and this material has wideband high-k and in another frequency range, has the dielectric constant being increased gradually by zero beginning and distributes in certain frequency range.
The technical solution adopted for the present invention to solve the technical problems is: a kind of novel super material of structure, this material comprises at least one sheet of material, each sheet of material comprises substrate and is attached to the artificial micro-structural on substrate, each substrate is divided into the base board unit of multiple array arrangements virtually, on each base board unit, adhere to a pair of artificial micro-structural, every pair of artificial micro-structural is included in parallel the first artificial micro-structural and the second artificial micro-structural of arranging on described base board unit, this material in certain frequency range, there is wideband high-k and in another frequency range dielectric constant by zero gradually increase.
In the preferred embodiment of the present invention, described the first artificial micro-structural and the second artificial micro-structural are of similar shape, and comprise I-shape construction and two open annular structure that opening relative crossing with the middle connecting line of I-shape construction.
In the preferred embodiment of the present invention, described the first artificial micro-structural and the second artificial micro-structural measure-alike.
In the preferred embodiment of the present invention, described the first artificial micro-structural is different with the size of the second artificial micro-structural.
In the preferred embodiment of the present invention, the size of described artificial micro-structural is all not more than 1/10th of incident electromagnetic wave wavelength.
In the preferred embodiment of the present invention, described artificial micro-structural is made up of copper cash or silver-colored line.
In the preferred embodiment of the present invention, described substrate is ceramic material.
In the preferred embodiment of the present invention, described substrate is polytetrafluoroethylene.
In the preferred embodiment of the present invention, described substrate is ferroelectric material, ferrite material or ferromagnetic material.
In the preferred embodiment of the present invention, described substrate is FR-4.
Implement a kind of novel super material of the present invention, there is following beneficial effect: this material has wideband high-k and in another frequency range, has the dielectric constant being increased gradually by zero beginning and distributes in certain frequency range, can meet the application of specific occasion.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is common material dielectric constant characteristic curve;
Fig. 2 is the structural representation of the novel super material in embodiment mono-;
Fig. 3 is the structural representation of a material cell in material shown in Fig. 2;
Fig. 4 is the structural representation of the first artificial micro-structural in embodiment mono-;
Fig. 5 is the dielectric constant performance plot of the novel super material in embodiment mono-;
Fig. 6 is the structural representation of the first artificial micro-structural in embodiment bis-;
Fig. 7 is the dielectric constant performance plot of novel super material in embodiment bis-.
Fig. 8 is the structural representation of a material cell in embodiment tri-;
Fig. 9 is the dielectric constant performance plot of the novel super material in embodiment tri-.
Embodiment
Embodiment mono-
The present embodiment provides a kind of novel super material, comprises at least one sheet of material, and in the time having multiple sheet of material, these sheet of material are along being stacked to together perpendicular to its surperficial direction.
Figure is as shown in 2, this material comprises the sheet of material 1 of 3 even uniform thickness, polylith sheet of material 1 is along stacking gradually perpendicular to the direction (z direction of principal axis) of base plan, between every two block of material lamellas 1 by certain packaging technology for example weld, riveted joint, the mode such as bonding make as a whole or by filling for example liquid raw substrate of material that can connect the two, its solidify after by bonding existing two sheet of material 1, thereby make polylith sheet of material 1 form an entirety.
Each sheet of material 1 comprises substrate and is attached to the artificial micro-structural on substrate, substrate is divided into multiple identical column base board units that are mutually close to virtually, and these base board units are time array arrangement taking x direction of principal axis as row, taking vertical with it y direction of principal axis as leu.Design base board unit is of a size of 4 millimeters × 2 millimeters × 0.818 millimeter, contrast Fig. 3, i.e. a
1=4 millimeters, a
2=2 millimeters, a
3=0.818 millimeter, parallel the first artificial micro-structural 3 and the second artificial micro-structural 4 of adhering to of each base board unit, a material cell 2 of the common formation of artificial micro-structural on base board unit and base board unit, as shown in Figure 2, the material of the present embodiment can be regarded as by multiple 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 carve or ion quarter etc. mode be attached on described base material.
The first artificial micro-structural 3 and the second artificial micro-structural 4 are metal wire, here use copper cash, the cross section of copper cash is rectangle, cross section is of a size of 0.1 millimeter × 0.018 millimeter, wherein the live width of copper cash is 0.1 millimeter, the thickness of copper cash is 0.018 millimeter, and certainly metal wire also can use other metal wires such as silver-colored line, and the cross section of metal wire can be also cylindric, flat or other shapes.The shape and size of the first artificial micro-structural and the second artificial micro-structural are all identical in the present embodiment.The first artificial micro-structural 3 comprises I-shape construction and two open annular structure that opening relative crossing with the middle connecting line of I-shape construction as shown in Figure 4, the distance on the border of the top edge of this artificial micro-structural and the left and right edges base board unit accompanying with it is 0.1 millimeter, contrast Fig. 4, the size of the each several part of the first artificial micro-structural respectively: b1=1.8 millimeter, b2=0.75 millimeter, b3=0.5 millimeter, b4=0.15 millimeter; C1=1.9 millimeter, c2=0.2 millimeter, c3=0.3 millimeter, c4=0.3 millimeter; Corresponding dielectric constant characteristic Simulation figure is as shown in Figure 5 when this material for electromagnetic wave, from the solid line in Fig. 5, the dielectric constant characteristic of this material has double resonance, and in certain frequency range, (0GHz～10GHz) dielectric constant is higher, and has good broadband properties; Corresponding to second resonance, dielectric constant (18GHz～22GHz) in certain frequency range increases gradually by zero, and by dotted line known in the less frequency range of dielectric constant the imaginary part of corresponding dielectric constant approach zero, therefore loss is also lower, so this material can also be applied in the occasion that needs dielectric constant less.
In the time needing to use broadband properties and dielectric constant start from scratch the characteristic changing in other frequency range, can realize by changing the size of material cell or the size of the first artificial microstructure size or the second artificial micro-structural, reduce to move after size resonance peak, size becomes large resonance peak reach.
Embodiment bis-
With the difference of embodiment mono-be: the width of the first artificial micro-structural 3 and the second artificial micro-structural 4 has diminished; The size of the each several part of the first artificial micro-structural as Fig. 6 respectively: b1=1.2 millimeter, b2=0.45 millimeter, b3=0.2 millimeter, b4=0.15 millimeter; C1=1.9 millimeter, c2=0.2 millimeter, c3=0.3 millimeter, c4=0.3 millimeter; The shape and size of the second artificial micro-structural are identical with the first artificial micro-structural.Corresponding dielectric constant characteristic Simulation figure is as shown in Figure 7 when this material for electromagnetic wave, from the solid line in Fig. 7, the dielectric constant characteristic of this material has double resonance, and in certain frequency range, (0GHz～12GH) dielectric constant is higher, and has good broadband properties; And corresponding to second resonance, dielectric constant (27GHz～32GHz) in certain frequency range increases gradually by zero, and by dotted line known in the less frequency range of dielectric constant the imaginary part of corresponding dielectric constant approach zero, therefore loss is also lower, so this material can be applied in the occasion that needs broadband properties, be also suitable for use in and need dielectric constant by zero occasion increasing gradually.Comparative example one is known, after minification, after resonance peak, moves.In like manner, increased in size resonance peak reach.In above-described embodiment, the first artificial micro-structural and the second artificial micro-structural is measure-alike, it should be noted that: in the time that both sizes are different, also have identical characteristic, while changing the size of artificial micro-structural, increased in size, moves after resonance peak; Minification, resonance peak reach.
Embodiment tri-
Each material cell as shown in Figure 8, with the difference of embodiment mono-be: the size decreases of the first artificial micro-structural 3, the second artificial size constancy of micro-4, the size of the each several part of the first artificial micro-structural respectively: b1=1.2 millimeter, b2=0.45 millimeter, b3=0.2 millimeter, b4=0.15 millimeter; C1=1.9 millimeter, c2=0.2 millimeter, c3=0.3 millimeter, c4=0.3 millimeter; Corresponding dielectric constant characteristic Simulation figure is as shown in Figure 9 when this material for electromagnetic wave, from the solid line in Fig. 9, the dielectric constant characteristic of this material has multi resonant and shakes, dielectric constant (15GHz～18GHz) dielectric constant in certain frequency range is higher, and has good broadband properties; In addition, dielectric constant in certain frequency range (24GHz～30GHz) by zero gradually increase, and by dotted line known in the less frequency range of dielectric constant the imaginary part of corresponding dielectric constant approach zero, therefore loss is also lower.Comparative example one is known, after minification, after resonance peak, moves.In like manner, increased in size resonance peak reach.Therefore in the time that we need to use broadband properties and dielectric constant and increase characteristic gradually by zero in different frequency range, the size that only need to change artificial micro-structural can realize.
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 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 forms, within these all belong to protection of the present invention.
Claims (10)
1. a super material, it is characterized in that, this material comprises at least one sheet of material, each sheet of material comprises substrate and is attached to the artificial micro-structural on substrate, each substrate is divided into the base board unit of multiple array arrangements virtually, on each base board unit, adhere to a pair of artificial micro-structural, the every pair of artificial micro-structural is included in parallel the first artificial micro-structural and the second artificial micro-structural of arranging on described base board unit, and this material has wideband high-k and in another frequency range, has the dielectric constant being increased gradually by zero beginning and distributes in certain frequency range.
2. super material according to claim 1, it is characterized in that, described the first artificial micro-structural and the second artificial micro-structural are of similar shape, and comprise I-shape construction and two open annular structure that opening relative crossing with the middle connecting line of I-shape construction.
3. super material according to claim 2, is characterized in that, described the first artificial micro-structural and the second artificial micro-structural measure-alike.
4. super material according to claim 2, is characterized in that, described the first artificial micro-structural is different with the size of the second artificial micro-structural.
5. super material according to claim 2, is characterized in that, the size of described artificial micro-structural is all not more than 1/10th of incident electromagnetic wave wavelength.
6. according to the arbitrary described super material of claim 1 to 5, it is characterized in that: described artificial micro-structural is made up of copper cash or silver-colored line.
7. super material according to claim 6, is characterized in that, described substrate is ceramic material.
8. super material according to claim 6, is characterized in that, described substrate is polytetrafluoroethylene.
9. super material according to claim 6, is characterized in that, described substrate is ferroelectric material, ferrite material or ferromagnetic material.
10. super material according to claim 6, is characterized in that, described substrate is FR-4.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110179890.3A CN102810760B (en) | 2011-06-29 | 2011-06-29 | Novel metamaterial |
| PCT/CN2011/081441 WO2012171295A1 (en) | 2011-06-17 | 2011-10-27 | Artificial microstructure and artificial electromagnetic material using same |
| US13/634,826 US8974893B2 (en) | 2011-06-17 | 2011-10-27 | Artificial microstructure and artificial electromagnetic material using the same |
| EP11860703.5A EP2560235B1 (en) | 2011-06-17 | 2011-10-27 | Artificial microstructure and artificial electromagnetic material using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110179890.3A CN102810760B (en) | 2011-06-29 | 2011-06-29 | Novel metamaterial |
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| Publication Number | Publication Date |
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| CN102810760A CN102810760A (en) | 2012-12-05 |
| CN102810760B true CN102810760B (en) | 2014-07-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102956986B (en) * | 2011-08-19 | 2015-04-22 | 深圳光启高等理工研究院 | Broadband high-refractive-index artificial electromagnetic material |
| CN103715516B (en) * | 2014-01-22 | 2016-07-06 | 中国科学院电子学研究所 | Frequency scanning reflector antenna and diffracted wave Enhancement Method based on plane diadactic structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587990A (en) * | 2009-07-01 | 2009-11-25 | 东南大学 | Broad band cylindrical lens antenna based on artificial electromagnetic materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587990A (en) * | 2009-07-01 | 2009-11-25 | 东南大学 | Broad band cylindrical lens antenna based on artificial electromagnetic materials |
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