CN102480009B - Metamaterial with high dielectric constant - Google Patents
Metamaterial with high dielectric constant Download PDFInfo
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- CN102480009B CN102480009B CN 201110108661 CN201110108661A CN102480009B CN 102480009 B CN102480009 B CN 102480009B CN 201110108661 CN201110108661 CN 201110108661 CN 201110108661 A CN201110108661 A CN 201110108661A CN 102480009 B CN102480009 B CN 102480009B
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Abstract
The invention relates to a metamaterial with a high dielectric constant, which comprises a substrate and an artificial micro structure attached on the substrate, wherein the artificial micro structure comprises a first metal wire and a second metal wire which are mutually parallel, and also comprises a third metal wire one end of which is a free end and the other end of which is connected with the first metal wire, and a fourth metal wire one end of which is a free end and the other end of which is connected with the second metal wire, and the third metal wire and the fourth metal wire are wound around in parallel in the same direction to form two independent helical wires which are not intersected. The dielectric constant of the metamaterial with the artificial micro structure is greatly increased, thus the metamaterial with the high dielectric constant can be widely applied to fields such as antenna manufacture, semiconductor manufacture, and the like; meanwhile, the technical scheme breaks through the defect of limited dielectric constant in unit volume in the prior art, and generates an immeasurable function to miniaturization of a microwave device.
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 a parameter of electric field response, material can produce charge inducing and weaken electric field when extra electric field, the ratio of electric field is dielectric constant in the extra electric field in the former vacuum and the final material.
Occurring in nature, any material have its specific dielectric constant values or dielectric constant curve under given conditions.The material that dielectric constant is higher is placed in the electric field, and the intensity of field can have considerable decline in dielectric substance.The material that dielectric constant is high such as dielectric insulator, is commonly used to make 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.In fact, the material that naturally exists is difficult to all realize this requirement that therefore, people turn to made super material, in the hope of 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 magnetic permeability in the space at every.Super material can be realized dielectric constant and the magnetic permeability that common material can't possess within the specific limits, thereby can effectively control the electromagnetic wave propagation characteristic.
Super material comprises artificial micro-structural and the accompanying base material of artificial micro-structural that is made of the metal wire with certain pattern form.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 the 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 super material cell size that the pattern of its metal wire has to a great extent.Super material cell size depends on the wave frequency that artificial micro-structural need to respond, common artificial micro-structural be of a size of required response electromagnetic wavelength 1/10th, otherwise can not be regarded as in the space continuously by being arranged in of forming of artificial micro-structural in the space.
Usually the dielectric constant that adopts the artificial micro-structural of " I " shape as shown in Figure 1 to go to change in the space in the super manufacture of materials technique at present distributes.In the artificial micro-structural of " I " shape to changing the active sheet metal vertical in the middle of being of dielectric constant, according to super properties of materials as can be known super material can regard as to be arranged by the base material cell array of adhering to artificial micro-structural and form, the size of single base material unit be generally electromagnetic wavelength 1/5th to 1/10th between.What therefore the size of the vertical metal wire in centre of the artificial micro-structural of " I " shape changed in limited space is limited in scope, so the changeable scope of dielectric constant also is limited.
Summary of the invention
The technical problem to be solved in the present invention is, for the defective 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 base material and the artificial micro-structural that is attached on the base material, described artificial micro-structural comprises the first metal wire and the second metal wire that is parallel to each other, comprise that also an end is the 3rd metal wire that the free end other end links to each other with described the first metal wire, and one end be the 4th metal wire that the free end other end links to each other with described the second metal wire, the 3rd metal wire and the 4th metal wire form two disjoint independently helixes with parallel the curling up of equidirectional.
In preferred implementation of the present invention, described helix from the outer ring to the inner ring dextrorotation around.
In preferred implementation of the present invention, described helix curls up from the outer ring to the inner ring counterclockwise.
In preferred implementation of the present invention, the number of turns of described helix is greater than 2.
In preferred implementation of the present invention, described base material is divided into a plurality of identical cube base material lists
Unit is attached with an artificial micro-structural on each base material unit.
In preferred implementation of the present invention, the helix that described the 3rd metal wire and the 4th metal wire form is square spiral.
In preferred implementation of the present invention, the helix that described the 3rd metal wire and the 4th metal wire form is circular helical-line.
In preferred implementation of the present invention, the helix that described the 3rd metal wire and the 4th metal wire form is the triangle helix.
In preferred implementation of the present invention, described artificial micro-structural by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved and is attached on the described base material.
In preferred implementation of the present invention, described base material is the ceramic material with high-k.
Implement the present invention and have following beneficial effect: the present invention arranges by the intermetallic metal line in the existing artificial micro-structural of " I " shape of change, by constructing two independently helical structures, increased by two wires over against area, because electric capacity and metal wire is proportional over against area, dielectric constant and electric capacity are proportional simultaneously, through emulation, the result shows, on a band frequency of non-constant width, the dielectric constant of super material with this artificial micro-structural is very steady, and compare with the super material with the artificial micro-structural of " I " shape, dielectric constant and refractive index have very significantly raising.The super material of this high-k can be applied in the fields such as antenna manufacturing and semiconductor manufacturing, and this technical scheme has been owing to broken through in the prior art the limited defective of dielectric constant in the unit volume, the miniaturization of microwave device produced also can produce immeasurable effect.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the schematic diagram of the artificial micro-structural of " I " shape in the prior art;
Fig. 2 is the structural representation of the artificial micro-structural of the first that proposes of the present invention;
Fig. 3 is the structural representation that comprises the super material of the artificial micro-structural of the first;
Fig. 4 is the structural representation of the artificial micro-structural of the second that proposes of the present invention;
Fig. 5 is the structural representation that comprises the super material of the artificial micro-structural of the second;
Fig. 6 is the structural representation of the third artificial micro-structural of proposing of the present invention;
Fig. 7 is the structural representation that comprises the super material of the third artificial micro-structural;
Fig. 8 is the structural representation of the 4th kind of artificial micro-structural proposing of the present invention;
Fig. 9 is the structural representation that comprises the super material of the 4th kind of artificial micro-structural;
Figure 10 is the structural representation of the 5th kind of artificial micro-structural proposing of the present invention;
Figure 11 is the structural representation that comprises the super material of the 5th kind of artificial micro-structural;
Figure 12 is the structural representation of the 6th kind of artificial micro-structural proposing of the present invention;
Figure 13 is the structural representation that comprises the super material of the 6th kind of artificial micro-structural.
Embodiment
The invention provides a kind of novel super material, with respect to existing super material, improved the dielectric constant of super material by changing the topology of artificial micro-structural wherein.
As shown in Figure 3, 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 between per two substrates 1, fill the material liquid raw substrate for example to connect the two, it is bonding with existing two substrates 1 after curing, thereby makes polylith substrate 1 consist of an integral body.Substrate 1 can be made 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 mutually are close to virtually, and these base material unit are time array arrangement take the x direction of principal axis as row, take vertical with it y direction of principal axis as leu.The length of side of base material unit be generally the incident electromagnetic wave wavelength 1/5th to 1/10th between.Be attached with an artificial micro-structural 2 on each base material unit, super material cell 3 of artificial micro-structural 2 common formations on base material unit and the base material unit, as shown in Figure 3, super material of the present invention can be regarded as by a plurality of super material cell 3 and forms along x, y, three direction array arrangements of z.
Artificial micro-structural 2 be generally metal wire for example copper cash or silver-colored line form have certain geometric plane or a 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 also can be other shapes.As shown in Figure 2, in the present embodiment, artificial micro-structural comprises the first metal wire 21 and the second metal wire 22 that is parallel to each other, comprise that also an end is the 3rd metal wire 23 that the free end other end links to each other with described the first metal wire 21, and one end be the 4th metal wire 24 that the free end other end links to each other with described the second metal 22, described the 3rd metal wire 23 and the 4th metal wire 24 are all counterclockwise to form two disjoint separate square spiral from the outer ring to parallel the curling up of inner ring.
Artificial micro-structural can also be as shown in Figure 4, be that with the difference of artificial micro-structural shown in Figure 2 described the 3rd metal wire and the 4th metal wire all become two square helixes from the outer ring to the inner ring helically wound in a clockwise direction, adopt the super material of artificial micro-structural shown in Figure 4 as shown in Figure 5.
Artificial micro-structural can also be as shown in Figure 6, with the difference of artificial micro-structural shown in Figure 2 be described the 3rd metal wire and the 4th metal wire all with counterclockwise from the outer ring to the conglobate helix of inner ring helically wound.Adopt the super material of artificial micro-structural shown in Figure 6 as shown in Figure 7.
Artificial micro-structural can also be as shown in Figure 8, is that with the difference of artificial micro-structural shown in Figure 6 described the 3rd metal wire and the 4th metal wire all become the helix of two circles in a clockwise direction to the inner ring helically wound from the outer ring.Adopt the super material of artificial micro-structural shown in Figure 8 as shown in Figure 9.
Artificial micro-structural can also be as shown in figure 10, is that with the difference of artificial micro-structural shown in Figure 2 described the 3rd metal wire and the 4th metal wire are all counterclockwise to become two leg-of-mutton helixes from the outer ring to the inner ring helically wound.Adopt the super material of artificial micro-structural shown in Figure 10 as shown in figure 11.
Artificial micro-structural can also be as shown in figure 12, is that with the difference of artificial micro-structural shown in Figure 10 described the 3rd metal wire all becomes two leg-of-mutton helixes from the outer ring to the inner ring helically wound in a clockwise direction with the 4th metal wire.Adopt the super material of artificial micro-structural shown in Figure 12 as shown in figure 13.
Therefore; the above is described embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not breaking away from the scope situation that aim of the present invention and claim protect; also can make a lot of forms; can curl up ovalisation or irregular shape such as helix, base material also can be macromolecular material, ferroelectric material, ferrite material or ferromagnetic material etc.These all belong within the protection of the present invention.
Claims (10)
1. super material with high-k, it is characterized in that, comprise base material and the artificial micro-structural that is attached on the described base material, described artificial micro-structural comprises the first metal wire and the second metal wire that is parallel to each other, comprise that also an end is the 3rd metal wire that the free end other end links to each other with described the first metal wire, and one end be the 4th metal wire that the free end other end links to each other with described the second metal wire, described the 3rd metal wire and the 4th metal wire form two disjoint independently helixes with parallel the curling up of equidirectional; Described the 3rd metal wire comprises first vertical line vertical with described the first metal wire, and described the 4th metal wire comprises second vertical line vertical with described the second metal wire; The free end of the free end of described the 3rd metal wire and described the 4th metal wire is non-intersect.
2. the super material with high-k according to claim 1 is characterized in that described helix curls up counterclockwise from the outer ring to the inner ring.
3. the super material with high-k according to claim 1 is characterized in that, described helix from the outer ring to the inner ring dextrorotation around.
4. according to claim 2 or 3 described super materials with high-k, it is characterized in that the number of turns of described helix is greater than 2.
5. the super material with high-k according to claim 4 is characterized in that, described base material is divided into a plurality of identical cube base material unit, is attached with a described artificial micro-structural on each base material unit.
6. the super material with high-k according to claim 5 is characterized in that, the parallel helix that curls up formation of described the 3rd metal wire and the 4th metal wire is square spiral.
7. the super material with high-k according to claim 5 is characterized in that, the parallel helix that curls up formation of described the 3rd metal wire and the 4th metal wire is circular helical-line
8. the super material with high-k according to claim 5 is characterized in that, the parallel helix that curls up formation of described the 3rd metal wire and the 4th metal wire is the triangle helix.
9. the super material with high-k according to claim 5 is characterized in that, described artificial micro-structural by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved and is attached on the described base material.
10. the super material with high-k according to claim 5 is characterized in that, described base material is the ceramic material with high-k.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110108661 CN102480009B (en) | 2011-04-28 | 2011-04-28 | Metamaterial with high dielectric constant |
| US13/583,908 US9041481B2 (en) | 2011-03-15 | 2011-10-27 | Artificial microstructure and artificial electromagnetic material using the same |
| EP11859648.5A EP2544306B1 (en) | 2011-03-15 | 2011-10-27 | Artificial microstructure and artificial electromagnetic material using same |
| PCT/CN2011/081374 WO2012122804A1 (en) | 2011-03-15 | 2011-10-27 | Artificial microstructure and artificial electromagnetic material using same |
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| CN 201110108661 CN102480009B (en) | 2011-04-28 | 2011-04-28 | Metamaterial with high dielectric constant |
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| CN102480009A CN102480009A (en) | 2012-05-30 |
| CN102480009B true CN102480009B (en) | 2013-03-13 |
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| CN102769198B (en) * | 2012-06-29 | 2014-08-13 | 深圳光启创新技术有限公司 | Artificial electromagnetic material, radome and antenna system |
| CN102820548A (en) * | 2012-08-03 | 2012-12-12 | 深圳光启创新技术有限公司 | Low pass wave-transmitting material and antenna housing and antenna system of low pass wave-transmitting material |
| CN103682655B (en) * | 2012-08-31 | 2017-07-28 | 深圳光启创新技术有限公司 | Micro-structural, metamaterial board and antenna system |
| CN102938500A (en) * | 2012-11-26 | 2013-02-20 | 江苏大学 | Combined spiral-wire rectangular-frame patch antenna based on left-handed material effect |
| CN108601317B (en) * | 2018-05-25 | 2020-11-10 | 浙江师范大学 | Preparation and application of broadband light metamaterial wave-absorbing structure |
| CN112542685B (en) * | 2020-12-18 | 2021-11-02 | 北京大学 | Microwave and terahertz wave all-metal hyperbolic metamaterial antenna and implementation method thereof |
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| 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 |
| CN101162797B (en) * | 2006-10-10 | 2011-12-14 | 西北工业大学 | Negative magnetic-inductive capacity material mobile phone antenna electromagnetic shielding device |
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