CN102904027B - Metamaterial with high dielectric constant - Google Patents
Metamaterial with high dielectric constant Download PDFInfo
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- CN102904027B CN102904027B CN201110145729.4A CN201110145729A CN102904027B CN 102904027 B CN102904027 B CN 102904027B CN 201110145729 A CN201110145729 A CN 201110145729A CN 102904027 B CN102904027 B CN 102904027B
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Abstract
The invention relates to a metamaterial with high dielectric constant. The metamaterial comprises at least one metamaterial laminated layer, each metamaterial laminated layer comprises a substrate and a plurality of artificial microstructures attached onto the substrate, each artificial microstructure comprises a first metal wire, a second metal wire, a third metal wire and at least two first metal segment groups, the first metal wire and the second metal wire are parallel to each other, the third metal wire is connected with middle points of the first metal wire and the second metal wire respectively, and is perpendicular to the first metal wire and the second metal wire, and each of the first metal segment groups is divided by the third metal wire equally and parallel to the first metal wire. The dielectric constant of the metamaterial having the artificial microstructure is increased greatly.
Description
Technical field
The present invention relates to super Material Field, more particularly, relate to a kind of super material with high-k.
Background technology
Dielectric constant be material to electric field response parameter, material can produce charge inducing and weaken electric field when extra electric field, in the extra electric field in former vacuum and final material, the ratio of electric field is dielectric constant.
Occurring in nature, any material under given conditions, has its specific dielectric constant values or dielectric constant curve.The material that dielectric constant is higher is placed in electric field, and the intensity of field can have considerable decline in dielectric substance.The material that dielectric constant is high, as dielectric insulator, is commonly used to manufacture electric capacity.And in high dielectric constant material, electromagnetic wavelength is very short, can greatly dwindle the size of radio frequency and microwave device.
Along with technology development with rapid changepl. never-ending changes and improvements, people are more and more higher to the application requirements of material, in some occasion, needed dielectric constant values is far above the dielectric constant values of the existing material of nature, the dielectric insulator that existing dielectric constant is higher can not reach requirement, and this will cause bottleneck for technology and research and development of products.Therefore, people turn to made super material, to realizing above-mentioned technical purpose.
Super material is a kind of artificial composite structure material with the not available extraordinary physical property of natural material, by the ordered arrangement to micro-structural, has changed relative dielectric constant and the magnetic permeability of in space at every.Super material can be realized dielectric constant and the magnetic permeability that common material cannot possess within the specific limits, thereby can effectively control electromagnetic wave propagation characteristic.
Super material comprise by metal wire, formed have certain pattern form artificial micro-structural and the accompanying base material of artificial micro-structural, a plurality of artificial micro-structurals array arrangement on base material, base material is played a supporting role to artificial micro-structural, can be the different material of any and artificial micro-structural.The stack meeting of this bi-material produces an effective dielectric constant and magnetic permeability in space, these two physical parameters are corresponding respectively electric field response and the magnetic responsiveness of material monolithic.Super material is that feature by artificial micro-structural is determined to the feature of electromagnetic response, and the electromagnetic response of artificial micro-structural depends on topological characteristic and the super material cell size of its metal wire to a great extent.Super material cell size depends on the electromagnetic wave that artificial micro-structural need to respond, common artificial micro-structural be of a size of required response electromagnetic wavelength 1/10th, otherwise being arranged in of being comprised of artificial micro-structural in space can not be regarded as in space continuously.
Conventionally the dielectric constant that adopts the artificial micro-structural of " I " shape as shown in Figure 1 to go to change in space in super manufacture of materials technique at present distributes.Super material can be regarded as by the base material cell array of adhering to artificial micro-structural and arranges and form, the size of single base material unit be generally electromagnetic wavelength 1/5th to 1/10th between, what in limited space, the size of the artificial micro-structural of " I " shape changed is limited in scope, and the changeable scope of dielectric constant of super material cell is also limited.Have the artificial micro-structural of " I " shape super material refractive index with the curve of frequency change as shown in Figure 2, its refractive index is generally below 5, with the curve of frequency change as shown in Figure 3, the value of dielectric constant is generally below 7 for dielectric constant.
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 super material with high-k.
The technical solution adopted for the present invention to solve the technical problems is: a kind of super material with high-k, comprise at least one super sheet of material, each super sheet of material comprises base material and is attached to a plurality of artificial micro-structural on described base material, described artificial micro-structural comprises the first metal wire and the second metal wire being parallel to each other, and the 3rd metal wire being connected with the intermediate point of described the first metal wire and the second metal wire, described the 3rd metal wire is vertical with the second metal wire with described the first metal wire, also comprise at least two first metal wire sections groups of being divided equally and paralleling with described the first metal wire by described the 3rd metal wire.
In the preferred embodiment of the present invention, the length of described the first metal wire, the second metal wire and the first metal wire sections group is increased to both sides gradually by the mid point of described the 3rd metal wire.
In the preferred embodiment of the present invention, the length of described the first metal wire, the second metal wire and the first metal wire sections group is reduced to both sides gradually by the mid point of described the 3rd metal wire.
In the preferred embodiment of the present invention, described the first metal wire, the second metal wire are identical with the length of the first metal wire sections group.
In the preferred embodiment of the present invention, described artificial micro-structural also comprises that with the 4th metal wire, the intersection point of described the 3rd metal wire quadrature be the mid point of described the 3rd metal wire and the 4th metal wire; Also comprise the 5th metal wire and the 6th metal wire that are parallel to each other and are connected with two end points of described the 4th metal wire respectively, intersection point is the mid point of described the 5th metal wire and the 6th metal wire, described the 5th metal wire is vertical with described the 4th metal wire with the 6th metal wire, also comprises at least two second metal wire sections groups of being divided equally and paralleling with described the 5th metal wire by described the 4th metal wire.
In the preferred embodiment of the present invention, the length of described the first metal wire, the second metal wire, the 5th metal wire, the 6th metal wire, the first metal wire sections group and the second metal wire sections group is increased to surrounding gradually by the intersection point of described the 3rd metal wire and the 4th metal wire.
In the preferred embodiment of the present invention, the length of described the first metal wire, the second metal wire, the 5th metal wire, the 6th metal wire, the first metal wire sections group and the second metal wire sections group is reduced to surrounding gradually by the intersection point of described the 3rd metal wire and the 4th metal wire.
In the preferred embodiment of the present invention, described the first metal wire, the second metal wire, the 5th metal wire, the 6th metal wire, the first metal wire sections group are identical with the length of the second metal wire sections group.
In the preferred embodiment of the present invention, described base material is ceramic material, macromolecular material, polytetrafluoroethylene.
In the preferred embodiment of the present invention, described base material is ferroelectric material, ferrite material or ferromagnetic material.
Implement the present invention and there is following beneficial effect: the present invention is by changing the shape of existing artificial micro-structural, increased by the first metal wire sections group, dielectric constant and the refractive index of super material have been improved, analogous diagram as shown in Figure 4 and Figure 5, as shown in Figure 4, when frequency is between 8.3GHz～18.5GHz, refractive index is all more than 4.2; As shown in Figure 5, dielectric constant can reach more than 150 in certain frequency range, and loss ratio is lower, frequency range can arrive 10GHz, therefore,, through emulation, result is presented on a band frequency of non-constant width, the super material with this artificial micro-structural is compared with the super material with the artificial micro-structural of " I " shape, and dielectric constant and refractive index have raising very significantly.The super material of this high-k can be applied in the fields such as antenna manufacture and semiconductor manufacture, and this technical scheme is owing to having broken through in prior art the limited defect of dielectric constant in unit volume, and the miniaturization of microwave device is produced and also can produce immeasurable effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the schematic diagram of the artificial micro-structural of " I " shape in prior art;
Fig. 2 has the refractive index of super material of the artificial micro-structural of " I " shape with the schematic diagram of frequency change;
Fig. 3 has the dielectric constant of super material of the artificial micro-structural of " I " shape with the schematic diagram of frequency change
Fig. 4 is that the refractive index of super material shown in the embodiment of the present invention one is with the schematic diagram of frequency change;
Fig. 5 is that the dielectric constant of super material shown in the embodiment of the present invention one is with the schematic diagram of frequency change;
Fig. 6 is the structural representation of the artificial micro-structural in the embodiment of the present invention one
Fig. 7 is the structural representation of the super material of the embodiment of the present invention one proposition;
Fig. 8 is the structural representation of the artificial micro-structural in the embodiment of the present invention two
Fig. 9 is the structural representation of the super material of the embodiment of the present invention two propositions;
Figure 10 is the structural representation of the artificial micro-structural in the embodiment of the present invention three
Figure 11 is the structural representation of the super material of the embodiment of the present invention three propositions;
Figure 12 is the structural representation of the artificial micro-structural in the embodiment of the present invention four
Figure 13 is the structural representation of the super material of the embodiment of the present invention four propositions;
Figure 14 is the structural representation of the artificial micro-structural in the embodiment of the present invention five
Figure 15 is the structural representation of the super material of the embodiment of the present invention five propositions;
Figure 16 is the structural representation of the artificial micro-structural in the embodiment of the present invention six
Figure 17 is the structural representation of the super material of the embodiment of the present invention six propositions.
Embodiment
Embodiment mono-
The invention provides a kind of novel super material, with respect to existing super material, by changing the topology of artificial micro-structural wherein, improved the dielectric constant of super material.
As shown in Figure 7, super material comprises the substrate 1 of at least one even uniform thickness, if there is 1 substrate of polylith substrate 1 to stack gradually along the direction (z direction of principal axis) perpendicular to base plan, and by assembling or fill the material liquid raw substrate for example can connect the two between every two substrates 1, it is bonding by existing two substrates 1 after solidifying, thereby makes polylith substrate 1 form an integral body.Substrate 1 can consist of high dielectric constant ceramic materials such as FR-4, F4b, CEM1, CEM3 or TP-1.
Every substrate 1 is divided into a plurality of identical cube base material unit that are mutually close to virtually, these base material unit take x direction of principal axis as row, the vertical with it y direction of principal axis of take be leu time array arrangement.The length of side of base material unit be generally incident electromagnetic wave wavelength 1/5th to 1/10th between.On each base material unit, be attached with an artificial micro-structural 2, a super material cell 3 of artificial micro-structural 2 common formations on base material unit and base material unit, as shown in Figure 7, super material of the present invention can be regarded as by a plurality of super material cell 3 and forms along three direction array arrangements of x, y, z.
Artificial micro-structural 2 be generally metal wire for example copper cash or silver-colored line form there is certain geometric plane or stereochemical structure, wherein, metal wire can be that section is the copper cash of cylindric or flat, silver-colored line etc., and the section of metal wire can be also other shapes.In the present embodiment, artificial micro-structural 2 as shown in Figure 6, comprise the first metal wire 4 and the second metal wire 5 that are parallel to each other, and the 3rd metal wire 6 being connected with the intermediate point of described the first metal wire 4 and the second metal wire 5, the 3rd metal wire 6 is vertical with the second metal wire 5 with described the first metal wire 4, also comprises at least two first metal wire sections groups 7 of being divided equally and paralleling with described the first metal wire 4 by described the 3rd metal wire 6.Wherein, the length of the first metal wire 4, the second metal wire 5 and the first metal wire sections group 7 is increased to both sides gradually by the mid point of described the 3rd metal wire 6.
Embodiment bis-
Artificial micro-structural in this embodiment and the difference of embodiment mono-are that the length of the first metal wire, the second metal wire and the first metal wire sections group is reduced to both sides gradually by the mid point of described the 3rd metal wire, as shown in Figure 8, the super material that comprises this artificial micro-structural as shown in Figure 9.
Embodiment tri-
Artificial micro-structural in this embodiment and the difference of embodiment mono-are the equal in length of the first metal wire, the second metal wire and the first metal wire sections group, and as shown in figure 10, the super material that comprises this artificial micro-structural as shown in figure 11.
Embodiment tetra-
Artificial micro-structural in this embodiment as shown in figure 12, this artificial micro-structural comprises the first metal wire 4 and the second metal wire 5 being parallel to each other, and the 3rd metal wire 6 being connected with the intermediate point of described the first metal wire 4 and the second metal wire 5, described the 3rd metal wire 6 is vertical with the second metal wire 5 with described the first metal wire 4, also comprises at least two first metal wire sections groups 7 of being divided equally and paralleling with described the first metal wire 4 by described the 3rd metal wire 6; Also comprise that with the 4th metal wire 10, the intersection point of described the 3rd metal wire 6 quadratures be the mid point of described the 3rd metal wire 6 and the 4th metal wire 10; Also comprise the 5th metal wire 8 and the 6th metal wire 9 that are parallel to each other and are connected with two end points of described the 4th metal wire 10 respectively, intersection point is the mid point of described the 5th metal wire 8 and the 6th metal wire 9, described the 5th metal wire 8 is vertical with described the 4th metal wire 10 with the 6th metal wire 9, also comprises at least two second metal wire sections groups 11 of being divided equally and paralleling with described the 5th metal wire 8 by described the 4th metal wire 10; Wherein, the length of described the first metal wire 4, the second metal wire 5, the 5th metal wire 8, the 6th metal wire 9, the first metal wire sections group 7 and the second metal wire sections group 11 is increased to surrounding gradually by the intersection point of the 3rd metal wire 6 and the 4th metal wire 10, and the super material that comprises this artificial micro-structural as shown in figure 13.
Embodiment five
As shown in figure 14, the length that is described the first metal wire 4, the second metal wire 5, the 5th metal wire 8, the 6th metal wire 9, the first metal wire sections group 7 and the second metal wire sections group 11 with the difference of embodiment tetra-is reduced to surrounding by the intersection point of described the 3rd metal wire 6 and the 4th metal wire 10 artificial micro-structural in this embodiment gradually.The super material that comprises this artificial micro-structural as shown in figure 15.
Embodiment six
Artificial micro-structural in this embodiment as shown in figure 16, with the difference of embodiment tetra-be the equal in length of described the first metal wire 4, the second metal wire 5, the 5th metal wire 8, the 6th metal wire 9, the first metal wire sections group 7 and the second metal wire sections group 11.The super material that comprises this artificial micro-structural as shown in figure 17.
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; do not departing from the scope situation that aim of the present invention and claim protect, also can make within a lot of distortion all belong to protection of the present invention.
Claims (10)
1. a super material with high-k, comprise at least one super sheet of material, each super sheet of material comprises base material and is attached to a plurality of artificial micro-structural on described base material, it is characterized in that, described artificial micro-structural comprises the first metal wire and the second metal wire being parallel to each other, and the 3rd metal wire being connected with the intermediate point of described the first metal wire and the second metal wire, described the 3rd metal wire is vertical with the second metal wire with described the first metal wire, also comprise the first metal wire sections group of being divided equally and paralleling with described the first metal wire by described the 3rd metal wire, this the first metal wire sections group comprises at least two strip metal line segments.
2. the super material with high-k according to claim 1, is characterized in that, the length of described the first metal wire, the second metal wire and the first metal wire sections group is increased to both sides gradually by the mid point of described the 3rd metal wire.
3. the super material with high-k according to claim 1, is characterized in that, the length of described the first metal wire, the second metal wire and the first metal wire sections group is reduced to both sides gradually by the mid point of described the 3rd metal wire.
4. the super material with high-k according to claim 1, is characterized in that, described the first metal wire, the second metal wire and the first metal wire sections group equal in length.
5. the super material with high-k according to claim 1, is characterized in that, described artificial micro-structural also comprises that with the 4th metal wire, the intersection point of described the 3rd metal wire quadrature be the mid point of described the 3rd metal wire and the 4th metal wire; Also comprise the 5th metal wire and the 6th metal wire that are parallel to each other and are connected with two end points of described the 4th metal wire respectively, intersection point is the mid point of described the 5th metal wire and the 6th metal wire, described the 5th metal wire is vertical with described the 4th metal wire with the 6th metal wire, also comprise the second metal wire sections group of being divided equally and paralleling with described the 5th metal wire by described the 4th metal wire, this second metal wire sections group comprises at least two strip metal line segments.
6. the super material with high-k according to claim 5, it is characterized in that, the length of described the first metal wire, the second metal wire, the 5th metal wire, the 6th metal wire, the first metal wire sections group and the second metal wire sections group is increased to surrounding gradually by the intersection point of described the 3rd metal wire and the 4th metal wire.
7. the super material with high-k according to claim 5, it is characterized in that, the length of described the first metal wire, the second metal wire, the 5th metal wire, the 6th metal wire, the first metal wire sections group and the second metal wire sections group is reduced to surrounding gradually by the intersection point of described the 3rd metal wire and the 4th metal wire.
8. the super material with high-k according to claim 5, is characterized in that, described the first metal wire, the second metal wire, the 5th metal wire, the 6th metal wire, the first metal wire sections group and the second metal wire sections group equal in length.
9. according to the arbitrary described super material with high-k of claim 1 to 8, it is characterized in that, described base material is ceramic material, macromolecular material or polytetrafluoroethylene.
10. according to the arbitrary described super material with high-k of claim 1 to 8, it is characterized in that, described base material is ferroelectric material, ferrite material or ferromagnetic material.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110145729.4A CN102904027B (en) | 2011-06-01 | 2011-06-01 | Metamaterial with high dielectric constant |
| PCT/CN2011/081374 WO2012122804A1 (en) | 2011-03-15 | 2011-10-27 | Artificial microstructure and artificial electromagnetic material using same |
| EP11859648.5A EP2544306B1 (en) | 2011-03-15 | 2011-10-27 | Artificial microstructure and artificial electromagnetic material using same |
| US13/583,908 US9041481B2 (en) | 2011-03-15 | 2011-10-27 | Artificial microstructure and artificial electromagnetic material using the same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110145729.4A CN102904027B (en) | 2011-06-01 | 2011-06-01 | Metamaterial with high dielectric constant |
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| CN102904027A CN102904027A (en) | 2013-01-30 |
| CN102904027B true CN102904027B (en) | 2014-11-26 |
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| CN201110145729.4A Active CN102904027B (en) | 2011-03-15 | 2011-06-01 | Metamaterial with high dielectric constant |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335379A (en) * | 2007-06-25 | 2008-12-31 | 财团法人工业技术研究院 | Antenna apparatus and antenna radome and design method thereof |
| CN101587990A (en) * | 2009-07-01 | 2009-11-25 | 东南大学 | Broad band cylindrical lens antenna based on artificial electromagnetic materials |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7071889B2 (en) * | 2001-08-06 | 2006-07-04 | Actiontec Electronics, Inc. | Low frequency enhanced frequency selective surface technology and applications |
| KR100723531B1 (en) * | 2006-06-13 | 2007-05-30 | 삼성전자주식회사 | Substrates for semiconductor package |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335379A (en) * | 2007-06-25 | 2008-12-31 | 财团法人工业技术研究院 | Antenna apparatus and antenna radome and design method thereof |
| 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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