CN103036042B - A kind of novel super material - Google Patents
A kind of novel super material Download PDFInfo
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- CN103036042B CN103036042B CN201110239963.3A CN201110239963A CN103036042B CN 103036042 B CN103036042 B CN 103036042B CN 201110239963 A CN201110239963 A CN 201110239963A CN 103036042 B CN103036042 B CN 103036042B
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Abstract
The present invention relates to a kind of novel super material, comprise at least one sheet of material, each sheet of material comprises substrate and is attached to the artificial micro-structural on substrate, 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 comprises the first artificial micro-structural and the second artificial micro-structural that are attached on described base board unit, the first artificial micro-structural and the second artificial micro-structural are the derived structure of snowflake type structure or snowflake type structure, described snowflake type structure comprises two mutually orthogonal I-shaped structures, described I-shaped structure comprises the first metal wire and the second metal wire that are parallel to each other, and the 3rd metal wire of connection the first metal wire and the second metal wire, the 3rd metal wire of the two intersects and is mutually vertical. 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 needs of specific occasion.
Description
Technical field
The present invention relates to a kind of material, more particularly, relate to a kind of novel super material.
Background technology
Super material claims again artificial electromagnetic material, is a kind of novel artificial synthetic material, is by nonmetallic materials systemThe substrate becoming and be attached on substrate surface or be embedded in that the multiple artificial micro-structural of substrate inside forms. BasePlate can be divided into multiple base board units that rectangular array is arranged virtually, on each base board unit, is attached with peopleMake micro-structural, thereby form a super material cell, whole super material is by a lot of so super material cellComposition, just as crystal is to be made up of according to certain arranging countless lattices. In each super material cellArtificial micro-structural can be identical or incomplete same. What artificial micro-structural was made up of wire has oneFixed 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 electromagnetism spy who is different from substrate itselfProperty, the super material that therefore all super material cell form presents special response spy to Electric and magnetic fieldsProperty; By to the different concrete structure of artificial microstructure design and shape, can change the sound of whole super materialAnswer characteristic.
The dielectric constant of common material changes along with the variation of frequency, as shown in Figure 1, and in low-loss feelingsUnder condition, dielectric constant is greater than 10 conventionally, and only has a resonance peak. In some application scenario, particularly largeIn scale integrated circuit, need to use the material with low-k, this just needs the dielectric constant can be fromZero starts to change, and common material does not generally meet.
Summary of the invention
The technical problem to be solved in the present invention is: can not make the dielectric constant variation of starting from scratch for prior artAbove-mentioned defect, a kind of novel super material is provided, it is normal that this material has the high dielectric of wideband in certain frequency rangeCount and in another frequency range, there is the dielectric constant being increased gradually by zero beginning and distribute.
The technical solution adopted for the present invention to solve the technical problems is: a kind of novel super material of structure, this materialMaterial comprises that at least one sheet of material, each sheet of material comprise substrate and be attached to the artificial micro-knot on substrateStructure, substrate is divided into the base board unit of multiple array arrangements virtually, adheres to a pair of people on each base board unitMake micro-structural, the every pair of artificial micro-structural comprises and is attached to variform first artificial on described base board unitMicro-structural and the second artificial micro-structural; Described the first artificial micro-structural and the second artificial micro-structural are snowflake type knotThe derived structure of structure or snowflake type.
In the preferred embodiment of the present invention, described snowflake type structure comprises two mutually orthogonal I shapesStructure, described I-shaped structure comprises the first metal wire and the second metal wire that are parallel to each other, and connects theThe 3rd metal wire of one metal wire and the second metal wire, the 3rd metal wire of the two intersects and is mutually vertical.
In the preferred embodiment of the present invention, described two I-shaped structures are identical, and the twoThree metal wires are orthogonal to be divided equally.
In the preferred embodiment of the present invention, the derived structure of described snowflake type comprise snowflake type structure andOn the extended line of I-shaped structure the 3rd metal wire or the 3rd metal wire, connect with first, second metalThe parallel metal lines of line parallel.
In the preferred embodiment of the present invention, the derivative knot that described the first artificial micro-structural is described snowflake typeStructure, and described parallel metal lines occurs in pairs, and about the mid point pair of described I-shaped structure the 3rd metal wireClaim.
In the preferred embodiment of the present invention, the derived structure of described snowflake type comprise snowflake type structure andThe end metal wire that the first metal wire of I-shaped structure is connected with the second metal wire two ends.
In the preferred embodiment of the present invention, described end metal wire is straight line and to described the 3rd metal wireExtend.
In the preferred embodiment of the present invention, described end metal wire is camber line or folding line.
In the preferred embodiment of the present invention, the derivative knot that described the second artificial micro-structural is described snowflake typeStructure, described end metal wire extends to described the 3rd metal wire mid point.
In the preferred embodiment of the present invention, the end metal wire of adjacent two first metal wires is parallel.
Implement novel super material of the present invention, there is following beneficial effect: the dielectric constant of this material existsIn certain frequency range, increase gradually by zero, increase gradually by zero when we need to use dielectric constant in different frequency rangeConstantly, the size that only need to change artificial micro-structural can realize large characteristic; This in certain frequency rangeDielectric constant, by zero material increasing gradually, can meet the application demand 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;
Fig. 3 is the structural representation of a material cell in material shown in Fig. 2;
Fig. 4 is the structural representation of the second artificial micro-structural in embodiment;
Fig. 5 is the structural representation of the first artificial micro-structural in embodiment mono-;
Fig. 6 is the permeability characteristics figure of embodiment mono-;
Fig. 7 is that in embodiment mono-, the first artificial microstructure size becomes the structural representation that obtains greatly embodiment bis-;
Fig. 8 is the permeability characteristics figure of embodiment bis-;
Fig. 9 and Figure 10 are the possible structures of the second artificial micro-structural in embodiment.
Detailed description of the invention
The present embodiment provides a kind of novel super material, comprises at least one sheet of material, when having multiple materialsWhen lamella, these sheet of material are along being stacked to together perpendicular to its surperficial direction.
Figure is as shown in 2, and this material comprises the sheet of material 1 of 3 even uniform thickness, polylith sheet of material 1 edgeDirection (z direction of principal axis) perpendicular to base plan stacks gradually, and between every two block of material lamellas 1, passes through oneFixed packaging technology is for example welded, riveted joint, the mode such as bonding are made as a whole or can connect by fillingConnect for example liquid raw substrate of material of the two, its solidify after by bonding existing two sheet of material 1, fromAnd make polylith sheet of material 1 form an entirety.
Each sheet of material 1 comprises substrate and be attached to the artificial micro-structural on substrate, wherein, and the material of substrateMaterial is ceramic material, polytetrafluoroethylene (PTFE), ferroelectric material, ferrite material, ferromagnetic material or FR-4. WillSubstrate is divided into multiple identical column base board units that are mutually close to, these base board units virtuallyTime array arrangement taking x direction of principal axis as row, taking vertical with it y direction of principal axis as leu. On each base board unitUpper/lower positions adheres to the first artificial micro-structural 3 and the second artificial micro-structural 4, on base board unit and base board unitA material cell 2 of the common formation of artificial micro-structural; As shown in Figure 2, the material of the present embodiment can be regarded asFormed along three direction array arrangements of x, y, z by multiple material cell 2, wherein, artificial micro-structural is passableBy etching, plating, brill quarter, photoetching, electronics carve or ion quarter etc. mode be attached on described base material. TheThe material of one artificial micro-structural 3 and the second artificial micro-structural 4 is metal wire, uses copper cash here, certainly goldBelong to line and also can use other metal wires such as silver-colored line, the cross section of metal wire can be also cylindric, flatOr other shapes. As shown in Figure 3, the first artificial micro-structural 3 is snowflake type structure in the present embodimentDerived structure, snowflake type structure comprises two mutually orthogonal I-shaped structures, I-shaped structure comprises mutuallyThe first parallel metal wire and the second metal wire, and the 3rd gold medal of connection the first metal wire and the second metal wireBelong to line, the two the 3rd metal wire intersects and is mutually vertical, snowflake type derived structure comprise snowflake type structure andFirst, second metal connecting on the extended line of its I-shaped structure the 3rd metal wire or the 3rd metal wireThe parallel metal lines of line, the parallel metal lines connecting occurs in pairs, and about described I-shaped structure the 3rdThe middle point symmetry of metal wire, in practice, the parallel metal lines connecting increases according to real needsOr reduce; As shown in Figure 4, the second artificial micro-structural 4 is similarly snowflake type structure to the second artificial micro-structural 4Derived structure, comprise snowflake type structure and the first metal wire and the second metal wire two with I-shaped structureThe end metal wire that end connects, end metal wire is straight line and extends to the 3rd metal wire, all at snowflakeThe structure of adding metal wire in type structure is all snowflake type derived structure. This second artificial micro-structural can also be byVarious deformation, as shown in Figure 9 and Figure 10, its medial end portions metal wire can be arc or folding line; NeedBe noted that: for simplicity, the structure in Fig. 9 and Figure 10 all draws with fine rule, in fact,Said structure all has certain width, as shown in Figure 3.
Preferably, the present invention adopts following examples:
Embodiment mono-
When artificial micro-structural 3 as shown in Figure 5, a1=2.8 millimeter, a2=2.4 millimeter, a3=2 millimeter,A4=3 millimeter, a5=0.1 millimeter, artificial micro-structural 4 as shown in Figure 4, c1=c2=2.89 millimeter,C3=0.184 millimeter, c4=0.75 millimeter, base board unit as shown in Figure 3, d1=4 millimeter, d2=8Millimeter, utilizes analogous diagram that above-mentioned parameter obtains as shown in Figure 6, from the solid line in Fig. 6, and this materialDielectric constant characteristic have the advantages that multi resonant shakes, in frequency range is (0GHz～8GHz) dielectric constant protectHold constant and be 20, as can be seen here, this kind of material has the feature of wideband high-k, by Fig. 6 alsoCan find out, dielectric constant (11.7GHz～13.3GHz) in certain frequency range increases gradually by zero, andAnd by dotted line known in the less above-mentioned frequency range of dielectric constant the imaginary part of corresponding dielectric constant approach zero, thereforeLoss is also lower, and this kind of material is applicable to being applied in and requires dielectric constant to increase gradually by zero or require this materialThere is the occasion of broadband properties.
Embodiment bis-
The sizes that are first artificial micro-structural 3 different from embodiment mono-, the artificial micro-structural after increased in size3 as shown in Figure 7, a1=3.6 millimeter, a2=3.2 millimeter, a3=2.8 millimeter, a4=3.8 millimeter, a5=0.1Millimeter, artificial micro-structural 4 as shown in Figure 4, c1=c2=2.89 millimeter, c3=0.184 millimeter, c4=0.75Millimeter, base board unit as shown in Figure 3, d1=4 millimeter, d2=8 millimeter, utilize above-mentioned parameter to obtainAs shown in Figure 8, from the solid line in Fig. 8, the dielectric constant characteristic of this material has multi resonant and shakes analogous diagramFeature, dielectric constant dielectric constant in frequency range (1GHz～7GHz) is constant and be 20, as can be seen hereThis material has the feature of wideband high-k, and dielectric constant is in certain frequency range(11.7GHz～15GHz) increases gradually by zero, and known at the less above-mentioned frequency of dielectric constant by dotted lineIn section, the imaginary part of corresponding dielectric constant approaches zero, and therefore loss is also lower, and this kind of material is applicable to being applied in requirementDielectric constant increases gradually by zero or requires this material to have the occasion of broadband properties.
Comparative example one and embodiment bis-, be not difficult to find, in the time that the size of artificial micro-structural 3 becomes largeResonance peak has moved forward, and the size that reduces on the contrary artificial micro-structural 3 can make to move after resonance peak, so, when meNeed to realize dielectric constant at a certain frequency place and increased continuously by zero beginning time, only need to regulate artificial micro-knotThe size of structure just can realize at a certain frequency place dielectric constant and start to change by zero.
Except the second artificial micro-structural of describing in above-described embodiment, the second artificial micro-structural can also be Fig. 9With the structure shown in Figure 10. Change adds can be to the first with quantity and the length of I shape connecting line segmentMaking micro-structural 3 regulates.
By reference to the accompanying drawings embodiments of the invention are described above, above-mentioned but the present invention is not limited toDetailed description of the invention, above-mentioned detailed description of the invention is only schematically, instead of restrictive, thisThe those of ordinary skill in field, can also be to the first artificial micro-structural and second artificial under enlightenment of the present inventionThe shape of micro-structural is made some distortion, within these all belong to protection of the present invention.
Claims (7)
1. a novel super material, is characterized in that, this material comprises at least one sheet of material, eachSheet of material comprises substrate and be attached to the artificial micro-structural on substrate, and substrate is divided into multiple arrays virtuallyThe base board unit of arranging, adheres to a pair of artificial micro-structural on each base board unit, every pair of artificial micro-structural comprisesBe attached to the first artificial micro-structural and the second artificial micro-structural on described base board unit; Described first artificial micro-Structure and the second artificial micro-structural are the derived structure of snowflake type structure or snowflake type;
Described snowflake type structure comprises two mutually orthogonal I-shaped structures, and described I-shaped structure comprises phaseParallel the first metal wire and the second metal wire mutually, and connect the 3rd of the first metal wire and the second metal wireMetal wire, and the 3rd metal wire of described two I shapes is crossing and mutually vertical;
Described two I-shaped structures are identical, and the two the 3rd metal wire is orthogonal divides equally;
The derived structure of described snowflake type comprise snowflake type structure and I-shaped structure the 3rd metal wire thereof orThe parallel metal lines parallel with first, second metal wire connecting on the extended line of the 3rd metal wire.
2. novel super material according to claim 1, is characterized in that, described first artificial micro-knotStructure is the derived structure of described snowflake type, and described parallel metal lines occurs in pairs, and about described I shapeThe middle point symmetry of structure the 3rd metal wire.
3. novel super material according to claim 1, is characterized in that, described snowflake type derivativeStructure comprises snowflake type structure and connects with the first metal wire and the second metal wire two ends of I-shaped structureThe end metal wire connecing.
4. novel super material according to claim 3, is characterized in that, described end metal wire isStraight line and to described the 3rd metal wire extend.
5. novel super material according to claim 3, is characterized in that, described end metal wire isCamber line or folding line.
6. novel super material according to claim 4, is characterized in that, described second artificial micro-knotStructure is the derived structure of described snowflake type, and described end metal wire extends to described the 3rd metal wire mid point.
7. novel super material according to claim 6, is characterized in that, adjacent two first metal wiresEnd metal wire parallel.
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| CN103036042B true CN103036042B (en) | 2016-05-04 |
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| CN104916918B (en) * | 2015-04-28 | 2018-05-25 | 电子科技大学 | A kind of high-gain horn antenna based on Meta Materials loading |
| CN107611602B (en) * | 2017-08-09 | 2020-09-15 | 电子科技大学 | Polarization conversion antenna of terahertz wave band |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325274A (en) * | 2007-06-15 | 2008-12-17 | 西北工业大学 | Bridle hand material composed of dendritic structure unit |
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| CN102904057B (en) * | 2011-07-29 | 2016-01-06 | 深圳光启高等理工研究院 | A kind of Novel manual electromagnetic material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325274A (en) * | 2007-06-15 | 2008-12-17 | 西北工业大学 | Bridle hand material composed of dendritic structure unit |
Non-Patent Citations (1)
| Title |
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| MeTamaterials Theroy,Design,and Applications;Tie Jun Cui等;《Springer》;20101231;第80页，附图4.11（a） * |
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