CN103094697B - A kind of artificial electromagnetic material - Google Patents
A kind of artificial electromagnetic material Download PDFInfo
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- CN103094697B CN103094697B CN201110336540.3A CN201110336540A CN103094697B CN 103094697 B CN103094697 B CN 103094697B CN 201110336540 A CN201110336540 A CN 201110336540A CN 103094697 B CN103094697 B CN 103094697B
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- made microstructure
- artificial electromagnetic
- electromagnetic material
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- 239000000463 material Substances 0.000 title claims abstract description 57
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 238000010276 construction Methods 0.000 claims abstract description 14
- 241000446313 Lamella Species 0.000 claims abstract description 12
- 150000002500 ions Chemical class 0.000 claims description 3
- 238000001259 photo etching Methods 0.000 claims description 3
- 239000003302 ferromagnetic material Substances 0.000 claims description 2
- 229910000529 magnetic ferrite Inorganic materials 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- 238000005530 etching Methods 0.000 claims 1
- 230000005621 ferroelectricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000875 corresponding Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229950000845 Politef Drugs 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003292 diminished Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Abstract
The present invention relates to a kind of artificial electromagnetic material, including at least one artificial electromagnetic material lamella, each artificial electromagnetic material lamella includes two pieces of relative substrates and at least one man-made microstructure being attached between two pieces of substrates, each man-made microstructure includes the first man-made microstructure and the second man-made microstructure, first man-made microstructure includes four branch roads of common intersection point, one end of arbitrary branch road is connected with intersection point, the other end is free end, branch road includes at least one kink, arbitrary branch road turn 90 degrees with intersection point for center of rotation successively dextrorotation, overlap with other three branch roads respectively after 180 degree and 270 degree；Second man-made microstructure includes mutually orthogonal I-shape construction, and intersection point is the midpoint of I-shape construction, has also been arranged in pairs at least two about handing over point-symmetric line segment on the connecting line of I-shape construction.This material has higher dielectric constant in certain frequency range and has the dielectric constant distribution being gradually increased by zero in another frequency range, can meet the needs of specific occasion.
Description
Technical field
The present invention relates to a kind of new material, more particularly, it relates to a kind of artificial electromagnetic material.
Background technology
Artificial electromagnetic material, is commonly called as Meta Materials, is a kind of novel artificial synthetic material that electromagnetic wave can produce response, is made up of substrate and the man-made microstructure being attached on substrate.The structure with certain geometrical pattern being typically arranged into by conductive material due to man-made microstructure, therefore, it is possible to produce response to electromagnetic wave, so that artificial electromagnetic material entirety embodies the electromagnetic property being different from substrate.
Dielectric constant is with the ratio that insulant is medium and the capacitance making same sized capacitor with vacuum for medium, and it represents in unit electric field, the size of the electrostatic energy put aside in unit volume.Dielectric constant characterizes dielectric polarization and stores the ability of electric charge.If the material having high-k is put in the electric field, the intensity of electric field can have considerable decline in electrolyte.In high dielectric constant material, electromagnetic wavelength is the shortest, can be substantially reduced the size of radio frequency and microwave device.The excursion of existing material overwhelming majority dielectric constant is the least.
Existing artificial electromagnetic material generally uses I-shaped man-made microstructure, its dielectric constant of artificial electromagnetic material distribution with this structure generally only produces a resonance in the frequency band paid close attention to, Fig. 1 is the simulation result of its dielectric constant of artificial electromagnetic material with I-shaped man-made microstructure, can be seen that its change in dielectric constant scope is smaller, and be all generally to start change from a bigger value, in the case of low-loss, dielectric constant is typically larger than 10.In some application scenario, such as large scale integrated circuit and antenna manufacture, needing the dielectric constant changed of starting from scratch, common material is the most all unsatisfactory for.
Summary of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, it is provided that a kind of artificial electromagnetic material, and this material has higher dielectric constant in certain frequency range and has the dielectric constant distribution being gradually increased by zero in another frequency range.
The technical solution adopted for the present invention to solve the technical problems is: a kind of artificial electromagnetic material of structure, including at least one artificial electromagnetic material lamella, each artificial electromagnetic material lamella includes two pieces of relative substrates and at least one man-made microstructure being attached between described two pieces of substrates, each man-made microstructure includes the first man-made microstructure 1 and the second man-made microstructure 2, described first man-made microstructure 1 includes four branch roads of common intersection point, one end of arbitrary described branch road is connected with described intersection point, the other end is free end, described branch road includes at least one kink, arbitrary described branch road turn 90 degrees with described intersection point for center of rotation successively dextrorotation, overlap with other three branch roads respectively after 180 degree and 270 degree；Described second man-made microstructure 2 includes mutually orthogonal I-shape construction, intersection point is the midpoint of I-shape construction, I-shape construction includes two line segments being parallel to each other and connects the connecting line of two parallel segments, has also been arranged in pairs at least two about handing over point-symmetric line segment on the connecting line of I-shape construction；The kink of described first man-made microstructure is bent to fillet or wedge angle.
In a preferred embodiment of the invention, the kink of described first man-made microstructure is bent to right angle.
In a preferred embodiment of the invention, the kink of described first man-made microstructure is bent to fillet.
In a preferred embodiment of the invention, the kink of described first man-made microstructure is bent to wedge angle.
In a preferred embodiment of the invention, the free end of arbitrary branch road of described first man-made microstructure connects a line segment.
In a preferred embodiment of the invention, the free end of arbitrary branch road of described first man-made microstructure is connected with the midpoint of described line segment.
In a preferred embodiment of the invention, described man-made microstructure is carved be attached on described substrate by being etched, electroplate, bore quarter, photoetching, electronics quarter or ion.
In a preferred embodiment of the invention, described substrate is ceramic material.
In a preferred embodiment of the invention, described substrate is macromolecular material or politef.
In a preferred embodiment of the invention, described substrate is ferroelectric material, ferrite material or ferromagnetic material.
Implement a kind of artificial electromagnetic material of the present invention, have the advantages that this material has higher dielectric constant in certain frequency range and has the dielectric constant distribution being gradually increased by zero in another frequency range, the application of specific occasion can be met.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is that in prior art, man-made microstructure is the dielectric constant properties curve emulation schematic diagram of the artificial electromagnetic material of I-shape construction；
Fig. 2 is the fractionation structural representation of shown in embodiment an artificial electromagnetic material lamella；
Fig. 3 is the structural representation of a man-made microstructure in Fig. 2；
But Fig. 4 is to have a same shape with Fig. 3 the structural representation of various sizes of man-made microstructure；
Fig. 5 is the dielectric constant properties curve emulation schematic diagram of the artificial electromagnetic material when man-made microstructure is Fig. 3；
Fig. 6 is the dielectric constant properties curve emulation schematic diagram of the artificial electromagnetic material when man-made microstructure is Fig. 4；
Fig. 7 is the structural representation of the first man-made microstructure in man-made microstructure；
Fig. 8 is the structural representation of the second man-made microstructure in man-made microstructure；
Fig. 9 is the possible structural representation of the first man-made microstructure.
Detailed description of the invention
Embodiment one
The present embodiment provides a kind of Novel manual electromagnetic material, including an artificial electromagnetic material lamella, two or more artificial electromagnetic material lamella can certainly be included, when having multiple artificial electromagnetic material lamella, these artificial electromagnetic material lamellas are along being perpendicular to the direction superposition on its surface, and by being mechanically connected, weld or the mode such as bonding being assembled integrally.
As in figure 2 it is shown, each artificial electromagnetic material lamella includes two pieces of relative substrates and the multiple man-made microstructure being attached between described two pieces of substrates, each man-made microstructure includes the first man-made microstructure 1 and the second man-made microstructure 2.First man-made microstructure 1 includes four branch roads of common intersection point, one end of arbitrary described branch road is connected with described intersection point, the other end is free end, arbitrary branch road includes multiple quarter bend folding part, the free end of branch road connects a line segment, and free end is connected with the midpoint of line segment, arbitrary described branch road turn 90 degrees with described intersection point for center of rotation successively dextrorotation, overlap with other three branch roads respectively after 180 degree and 270 degree；Second man-made microstructure 2 includes mutually orthogonal I-shape construction, and intersection point is the midpoint of I-shape construction, has also been arranged in pairs four about handing over point-symmetric line segment on the connecting line of each I-shape construction.
The man-made microstructure of each artificial electromagnetic material lamella use live width be 0.1 mm of thickness be the surface that the copper cash of 0.018 millimeter is attached to one piece of substrate by etch, electroplate, bore the modes such as quarter, photoetching, electronics quarter or ion quarter, naturally it is also possible to use other conductive materials；Adjacent substrate is by being mechanically connected, weld or the mode such as bonding being assembled integrally.This substrate is virtually divided into multiple identical column base board unit being mutually close to, the size of design base board unit is 8 millimeters × 4 millimeters × 0.4 millimeter, in first man-made microstructure, the size of each several part such as Fig. 7 is respectively: a=3.5 millimeter, b=1.6 millimeter, c=3.1 millimeter, d=2.5 millimeter, e=2.1 millimeter, f=1 millimeter, g=1.9 millimeter, and in the line segment that wherein a, b, c, d, e and f are marked, the line-spacing between adjacent segments is 0.1 millimeter；In second man-made microstructure, the size of each several part such as Fig. 8 is respectively: A=3.5 millimeter, B=1.5 millimeter, C=1.3 millimeter, D=1.4 millimeter, in three line segments of A, B and C mark, the line-spacing between adjacent segments is 0.1 millimeter, and the first man-made microstructure 1 and the arrangement on substrate of second man-made microstructure 2 are as shown in Figure 3.
Electromagnetic wave is by dielectric constant properties analogous diagram corresponding during this artificial electromagnetic material as shown in Figure 5, from the solid line in Fig. 5, this material (1GHz～3GHz) in certain frequency range has higher dielectric constant, and its dielectric constant (5.5GHz～7.5GHz) in certain frequency range is progressively increased to 121 by zero, the imaginary part of dielectric constant is understood in above-mentioned frequency range close to zero by dotted line corresponding in figure, therefore it is lost relatively low, so this compatible materials is applied in the fields such as large scale integrated circuit and antenna manufacture.
Embodiment two
Difference with embodiment one is: the second man-made microstructure 2 size has diminished A=2.2 millimeter, B=0.8 millimeter, C=0.6 millimeter, D=1.4 millimeter, line-spacing between three line segment adjacent segments of A, B and C mark is 0.1 millimeter, and the first man-made microstructure 1 and the arrangement on substrate of second man-made microstructure 2 are as shown in Figure 4.
Electromagnetic wave is by dielectric constant properties analogous diagram corresponding during this artificial electromagnetic material as shown in Figure 6, from the solid line in Fig. 6, this material (1GHz～3.2GHz) in certain frequency range has higher dielectric constant, and its dielectric constant (5.7GHz～9.2GHz) in certain frequency range is progressively increased to 118 by zero, understood the imaginary part of dielectric constant in above-mentioned frequency range by dotted line corresponding in figure and, close to zero, be therefore lost relatively low.
When need to use in other frequency ranges dielectric constant start from scratch the characteristic of change time, can be realized by the size of the size of change base board unit or the first artificial microstructure size or the second man-made microstructure, move after reducing scale resonant peak, become large-sized resonance peak reach.
Above in conjunction with accompanying drawing, embodiments of the invention are described, but the invention is not limited in above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is only schematically, rather than it is restrictive, those of ordinary skill in the art is under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, it may also be made that many variations, the shape of the such as first man-made microstructure can be for the structure shown in Fig. 9, the kink of each branch road is not limited to right angle, can also is that fillet or wedge angle, the free end of each branch road can also be not connected to line segment with connecting line segment, within these belong to the protection of the present invention.
Claims (7)
1. an artificial electromagnetic material, including at least one artificial electromagnetic material lamella, each artificial electromagnetic
Sheet of material include two pieces of relative substrates and be attached between described two pieces of substrates at least one is artificial micro-
Structure, it is characterised in that each man-made microstructure includes the first man-made microstructure and the second man-made microstructure,
Described first man-made microstructure includes four branch roads of common intersection point, one end of arbitrary described branch road and described intersection point
Being connected, the other end is free end, and described branch road includes at least one kink, and arbitrary described branch road is with described
Intersection point be center of rotation dextrorotation successively turn 90 degrees, after 180 degree and 270 degree respectively with other three
Road overlaps；Described second man-made microstructure includes mutually orthogonal I-shape construction, and intersection point is I-shape construction
Midpoint, I-shape construction include two line segments being parallel to each other and connect two parallel segments connecting line, in work
At least two also it has been arranged in pairs about handing over point-symmetric line segment on the connecting line of character form structure；Described the first
The kink making micro structure is bent to fillet or wedge angle.
Artificial electromagnetic material the most according to claim 1, it is characterised in that described first artificial micro-
The free end of arbitrary branch road of structure connects a line segment.
Artificial electromagnetic material the most according to claim 2, it is characterised in that described first artificial micro-
The free end of arbitrary branch road of structure is connected with the midpoint of described line segment.
Artificial electromagnetic material the most according to claim 1, it is characterised in that described man-made microstructure
By etching, electroplate, bore quarter, photoetching, electronics carves or ion is carved and is attached on described substrate.
Artificial electromagnetic material the most according to claim 4, it is characterised in that described substrate is pottery
Material.
Artificial electromagnetic material the most according to claim 4, it is characterised in that described substrate is high score
Sub-material.
Artificial electromagnetic material the most according to claim 4, it is characterised in that described substrate is ferroelectricity
Material, ferrite material or ferromagnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110336540.3A CN103094697B (en) | 2011-10-31 | A kind of artificial electromagnetic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110336540.3A CN103094697B (en) | 2011-10-31 | A kind of artificial electromagnetic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103094697A CN103094697A (en) | 2013-05-08 |
| CN103094697B true CN103094697B (en) | 2016-12-14 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2796139Y (en) * | 2005-05-19 | 2006-07-12 | 上海联能科技有限公司 | High-order microwave composite functional material antenna of regular square single cell structure |
| CN1866612A (en) * | 2005-05-19 | 2006-11-22 | 上海联能科技有限公司 | Application method of high dielectric microwave composite material on antenna made |
| US7482994B2 (en) * | 2006-04-05 | 2009-01-27 | The Hong Kong University Of Science And Technology | Three-dimensional H-fractal bandgap materials and antennas |
| CN102204008A (en) * | 2008-08-22 | 2011-09-28 | 杜克大学 | Metamaterials for surfaces and waveguides |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2796139Y (en) * | 2005-05-19 | 2006-07-12 | 上海联能科技有限公司 | High-order microwave composite functional material antenna of regular square single cell structure |
| CN1866612A (en) * | 2005-05-19 | 2006-11-22 | 上海联能科技有限公司 | Application method of high dielectric microwave composite material on antenna made |
| US7482994B2 (en) * | 2006-04-05 | 2009-01-27 | The Hong Kong University Of Science And Technology | Three-dimensional H-fractal bandgap materials and antennas |
| CN102204008A (en) * | 2008-08-22 | 2011-09-28 | 杜克大学 | Metamaterials for surfaces and waveguides |
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