CN103582401A - Broadband wave absorbing material, electronic equipment and method for obtaining broadband wave absorbing material - Google Patents
Broadband wave absorbing material, electronic equipment and method for obtaining broadband wave absorbing material Download PDFInfo
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Abstract
The invention discloses a broadband wave absorbing material which comprises at least two basic unit layers. Each basic unit layer comprises a base material and multiple microstructures distributed on the base material in a periodical mode. Each basic unit layer corresponds to one preset frequency point or one preset frequency band for absorbing electromagnetic waves. Topologies of the microstructures on each basic unit layer are equal in shape and size, and the topologies of the microstructures on different basic unit layers are not equal in shape and/or size. The invention further discloses electronic equipment and a method for obtaining the broadband wave absorbing material. By means of the method, the broadband wave absorbing material, the electronic equipment and the method for obtaining the broadband wave absorbing material can obviously increase the wave absorbing bandwidth on the basis that the wave absorbing material has the good effect of absorbing electromagnetic waves.
Description
Technical field
The present invention relates to super material technology field, particularly relate to a kind of wideband and inhale the super material of ripple, electronic equipment and obtain the method that wideband is inhaled the super material of ripple.
Background technology
Along with making rapid progress of scientific technological advance, the technology that the electromagnetic wave of take is medium, various product get more and more, and electromagenetic wave radiation also increases day by day on the impact of environment.Such as, radio wave may cause interference to airport environment, causes airplane flight normally to take off; Mobile phone may disturb the work of various precise electronic medicine equipments; Even common computer, electromagnetic wave that also can radiation carry information, it is may be beyond several kilometers received and reappear, and cause the leakage of the aspect information such as national defence, politics, economy, science and technology.Therefore, administer electromagnetic pollution, find a kind of material---the absorbing material that can keep out and weaken electromagenetic wave radiation, become a large problem of material science.
Absorbing material is a class material that can absorb the electromagnetic wave energy that projects its surface, and it is comprising that military affairs and other side are also widely used, such as stealthy machine, contact clothing etc.The primary condition of material electromagnetic wave absorption is: when (1) electromagnetic wave incides on material, it can enter material internal to greatest extent, requires material to have matching properties; (2) the electromagnetism wave energy that enters material internal promptly almost all attenuates, i.e. attenuation characteristic.One of method that realizes first condition is to adopt special boundary condition, as led at high electricity, the surface coating electricity of high magnetic conductance absorbing material leads, magnetic conductance approaches that air electricity is led, the medium of magnetic conductance, makes electromagnetic wave incident to greatest extent; Realize second conditional request material and there is high electromagnetic consumable.
The super material of existing suction ripple has had larger progress to the electromagnetic assimilation effect of characteristic frequency, but the electromagnetic frequency range conventionally absorbing is very narrow.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of wideband and inhales the super material of ripple, electronic equipment and obtain the method that wideband is inhaled the super material of ripple, and can make to inhale the super material of ripple is having on the basis of good assimilation effect electromagnetic wave, significantly improves the bandwidth of inhaling ripple.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of wideband to inhale the super material of ripple, comprise at least two-layer elementary cell layer, every layer of described elementary cell layer comprises that base material and cycle are arranged in a plurality of micro-structurals on described base material, every layer of described elementary cell layer be predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, wherein, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical.
Wherein, the shape of the micro-structural of described elementary cell layer is annular.
Wherein, described at least two-layer super material elementary cell layer is to carry out from skin to internal layer direction stacked arrangement according to the size of the size of the micro-structural of elementary cell layer every layer described.
Wherein, described at least two-layer super material elementary cell layer is to carry out from skin to internal layer direction stacked arrangement according to the size of the size of the micro-structural of elementary cell layer every layer described is ascending.
Wherein, described super material comprises four layers of elementary cell layer, and ground floor elementary cell layer comprises that the first base material and cycle be arranged in a plurality of the first micro-structurals on the first base material, and described the first micro-structural is circular micro-structural; Second layer elementary cell layer comprises that the second base material and cycle be arranged in a plurality of the second micro-structurals on the second base material, described the second micro-structural comprise the first circular micro-structural and radius be greater than the first circular micro-structural radius and with the second circular micro-structural of the concentric setting of the first circular micro-structural; The 3rd layer of elementary cell layer comprises that the 3rd base material and cycle are arranged in a plurality of the 3rd micro-structurals on the 3rd base material, described the 3rd micro-structural comprises the 3rd circular micro-structural, the 4th circular micro-structural, the 5th circular micro-structural, described the 3rd circular micro-structural, the 4th circular micro-structural, the 5th circular micro-structural radius increase successively and with one heart, spaced set; The 4th layer of elementary cell layer comprises that the 4th base material and cycle are arranged in a plurality of the 4th micro-structurals on the 4th base material, described the 4th micro-structural comprises the 6th circular micro-structural, the 7th circular micro-structural, the 8th circular micro-structural and the 9th circular micro-structural, described the 6th circular micro-structural, the 7th circular micro-structural, the 8th circular micro-structural, the 9th circular micro-structural radius increase successively and with one heart, spaced set
Wherein, on described second layer elementary cell layer, the spacing of the second circular micro-structural and the first circular micro-structural is the first spacing; The 3rd circular micro-structural and the 4th circular micro-structural on described the 3rd layer of elementary cell layer, the spacing between the 4th circular micro-structural and the 5th circular micro-structural is the first spacing; The 6th circular micro-structural and the 7th circular micro-structural on described the 4th layer of elementary cell layer, the spacing between the 7th circular micro-structural and the 8th circular micro-structural and the 8th circular micro-structural and the 9th circular micro-structural is the first spacing.
Wherein, the described first to the 9th circular micro-structural is metal micro structure.
Wherein, described the first base material, the second base material, the 3rd base material are identical with the 4th base material material, are FR-4 material, F4B material, polystyrene PS material, ferroelectric material, ferrite material or ferromagnetic material.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of electronic equipment is provided, comprise shell, on described shell, be provided with wideband and inhale the super material of ripple, described super material comprises at least two-layer elementary cell layer, every layer of described elementary cell layer comprises that base material and cycle are arranged in a plurality of micro-structurals on described base material, every layer of described elementary cell layer be predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, wherein, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical.
For solving the problems of the technologies described above, another technical scheme that the present invention adopts is: a kind of method that wideband is inhaled the super material of ripple that obtains is provided, comprise: provide at least two-layer elementary cell layer by layer, every layer of described elementary cell layer comprises that base material and cycle are arranged in a plurality of micro-structurals on described base material, every layer of described elementary cell layer be predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, wherein, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical, described at least two-layer elementary cell layer is carried out stacked and form super material.。
The invention has the beneficial effects as follows: the situation that is different from prior art, the at least two-layer elementary cell layer of the present invention is predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical.The super material of suction ripple that this multiplelayer microstructure layer forms, can have on the basis of good assimilation effect electromagnetic wave, significantly improves the bandwidth of inhaling ripple.
Accompanying drawing explanation
Fig. 1 forms the perspective view of the elementary cell of super material in the present invention;
Fig. 2 be a kind of wideband of the present invention inhale in an embodiment of the super material of ripple, form the super material elementary cell of wideband suction ripple structural representation;
Fig. 3 be a kind of wideband of the present invention inhale in another embodiment of the super material of ripple, form the super material elementary cell of wideband suction ripple structural representation;
Fig. 4 be a kind of wideband of the present invention inhale in the another embodiment of the super material of ripple, form the super material elementary cell of wideband suction ripple structural representation;
Fig. 5 be a kind of wideband of the present invention inhale in the another embodiment of the super material of ripple, form the super material elementary cell of wideband suction ripple structural representation;
Fig. 6 is the structural representation that a kind of wideband of the present invention is inhaled the micro-structural of ground floor in the another embodiment of the super material of ripple;
Fig. 7 is the structural representation that a kind of wideband of the present invention is inhaled the micro-structural of the second layer in the another embodiment of the super material of ripple;
Fig. 8 is the structural representation that a kind of wideband of the present invention is inhaled in the another embodiment of the super material of ripple the micro-structural of the 3rd layer;
Fig. 9 is the structural representation that a kind of wideband of the present invention is inhaled in the another embodiment of the super material of ripple the micro-structural of the 4th layer;
Figure 10 is the emulation testing schematic diagram that a kind of wideband of the present invention is inhaled super material in the another embodiment of the super material of ripple;
Figure 11 is the structural representation of an embodiment of a kind of electronic equipment of the present invention;
To be that the present invention is a kind of obtain the flow chart of an embodiment that wideband is inhaled the method for the super material of ripple to Figure 12.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Light, as electromagnetic a kind of, it is when passing glass, because the wavelength of light is much larger than the size of atom, therefore we can use the univers parameter of glass, and the details parameter of the atom of for example refractive index, rather than composition glass is described the response of glass to light.Accordingly, when research material is to other electromagnetic responses, in material, any yardstick also can be used the univers parameter of material much smaller than the structure of electromagnetic wavelength to electromagnetic response, and for example DIELECTRIC CONSTANT ε and magnetic permeability μ describe.Structure by every of designing material makes the dielectric constant of material each point all identical or different with magnetic permeability, thereby making the dielectric constant of material monolithic and magnetic permeability be certain rule arranges, the magnetic permeability that rule is arranged and dielectric constant can make material have the response in macroscopic view to electromagnetic wave, such as converging electromagnetic wave, divergent electromagnetic ripple, electromagnetic wave absorption etc.Such has magnetic permeability that rule arranges and the material of dielectric constant is referred to as super material.
As shown in Figure 1, Fig. 1 is for forming the perspective view of the elementary cell of super material.The elementary cell of super material comprises the base material 2 that artificial micro-structural 1 and this artificial micro-structural are adhered to.In the present invention, artificial micro-structural is artificial metal micro structure, it has plane or three-dimensional topological structure to incident electromagnetic wave electric field and/or magnetic field generation response, change pattern and/or the size of the artificial metal's micro-structural in each super material elementary cell, can change each super material elementary cell response to incident electromagnetic wave.A plurality of super material elementary cells are arranged according to certain rules, can make super material have macroscopical response to electromagnetic wave.Because super material monolithic need have macroscopical electromagnetic response to incident electromagnetic wave, therefore each super material elementary cell need form continuous response to the response of incident electromagnetic wave, this requires the size of each super material elementary cell to be less than incident electromagnetic wave 1/5th wavelength, is preferably incident electromagnetic wave 1/10th wavelength.During this section is described, to surpass material monolithic, to be divided into a plurality of super material elementary cells are a kind of man-made division methods, but should know that this kind of division methods only for convenience of description, should not regard super material as by a plurality of super material elementary cell splicings or assemble, in practical application, super material is that artificial metal's micro-structural cycle is arranged on base material and can be formed, and technique is simple and with low cost.Cycle arranges and refers to that the artificial metal's micro-structural in each super material elementary cell of above-mentioned artificial division can produce continuous electromagnetic response to incident electromagnetic wave.
Fig. 2 is that a kind of wideband of the present invention is inhaled the structural representation that forms the super material elementary cell of wideband suction ripple in an embodiment of the super material of ripple, Fig. 3 is that a kind of wideband of the present invention is inhaled the structural representation that forms the super material elementary cell of wideband suction ripple in another embodiment of the super material of ripple, according to actual conditions, that described super material elementary cell layer has is two-layer, three layers ... or N layer, at least comprise two-layer, as shown in Figure 2, described super material elementary cell layer has two- layer 201 and 202, as shown in Figure 3, described super material elementary cell layer have 4 layer 301,302,303 and 304.Every layer of super material includes base material and the cycle is arranged in a plurality of micro-structurals on base material.The topology of the micro-structural on every layer of super material and measure-alike, the topology of the micro-structural on different layers and/or size are different.The base material material of each layer of super material can be chosen FR-4 material, F4B material, PS material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, the base material choice of material of each layer of super material is inhaled the wave-absorbing effect of the super material of ripple to the larger material of electromagnetic wave loss to strengthen the present invention.The micro-structural of the super material of different elementary cell layers is different, and every layer of super material elementary cell layer be predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively.
The micro-structural of different elementary cell layers is different, thereby the micro-structural role of every one deck is also different, and micro-structural between layers can produce and influences each other, thereby comprehensively the effect of each layer reaches the effect that wideband is inhaled ripple.
Fig. 4 be a kind of wideband of the present invention inhale in the another embodiment of the super material of ripple, form the super material elementary cell of wideband suction ripple structural representation, as shown in Figure 4, super material elementary cell layer comprises 401, 402, 403 and 404, corresponding micro-structural is respectively 41, 42, 43 and 44, the shape of described micro-structural can be cross, I-shaped, plane snowflake shape, circular, annular, the shape of annular or other three-dimensional topological structure, the cross of take in Fig. 4 describes as example, the size of super material microstructure 41 is less than the size of super material microstructure 42, the size of super material microstructure 42 is less than the size of super material microstructure 43, the size of super material microstructure 43 is less than the size of super material microstructure 44.When surpassing the arrangement of material elementary cell layer, according to ecto-entad, stack gradually the elementary cell layer that comprises micro-structural 41, micro-structural 42, micro-structural 43 and micro-structural 44; Or as shown in Figure 5, when surpassing the arrangement of material elementary cell layer, also can stack gradually outside to inside the elementary cell layer that comprises micro-structural 54, micro-structural 53, micro-structural 52 and micro-structural 51 according to having.
As previously mentioned, in one embodiment of the present invention, when surpassing the arrangement of material elementary cell layer, be to carry out from skin to internal layer direction stacked arrangement, as shown in Figure 4 according to the size of the size of the micro-structural of elementary cell layer every layer described is ascending.
In the present embodiment, only enumerate four layers of elementary cell layer, in actual conditions, be not limited to four layers; According to the size ecto-entad of the micro-structural of elementary cell layer, stacking gradually in addition can be descending, ascending, or first descending ascending again, as long as the suction ripple requirement that can satisfy the demand, can combine according to the size of micro-structural, at this, do not repeat one by one.
In one embodiment of the present invention, the shape of the micro-structural of described elementary cell layer is circular, in the present invention, the super material of a kind of wideband suction ripple has adopted 4 layers of elementary cell layer that comprises different micro-structural, the micro-structural of every one deck is respectively as shown in Fig. 6, Fig. 7, Fig. 8, Fig. 9, first consult Fig. 6, a plurality of the first micro-structurals 802 that the first elementary cell layer was arranged on the first base material 801 by the first base material 801 and cycle form, and described micro-structural 802 is circular micro-structural, and radius is the first radius r
0, and circular micro-structural 802 has the first live width.Consult Fig. 7, the second elementary cell layer consists of the second base material 901 and the second micro-structural 902, and wherein, described the second micro-structural 902 comprises that radius is r
1the first circular micro-structural and with the concentric radius of the first circular micro-structural be r
2the second circular micro-structural, r
2>r
1>r
0, the live width of the second circular micro-structural equals the first circular micro-structural live width, and the second circular micro-structural and the first circular micro-structural have the first spacing.Consult Fig. 8, the 3rd elementary cell layer consists of the 3rd base material 1001 and the 3rd micro-structural 1002, and wherein, described the 3rd micro-structural 1002 comprises that radius is r
3the 3rd circular micro-structural, radius be r
4the 4th circular micro-structural and radius be r
5the 5th circular micro-structural, with one heart and spaced set, spacing is the first spacing, and r for the 3rd circular micro-structural, the 4th circular micro-structural and the 5th circular micro-structural
5>r
4>r
3>r
2>r
1>r
0.Consult Fig. 9, the 4th elementary cell layer consists of the 4th base material 1101 and the 4th micro-structural 1102, and wherein, described the 4th micro-structural 1102 comprises that radius is r
6the 6th circular micro-structural, radius be r
7the 7th circular micro-structural, radius be r
8the 8th circular micro-structural and radius be r
9the 9th circular micro-structural, with one heart and spaced set, spacing is the first spacing, and r for the 6th circular micro-structural, the 7th circular micro-structural, the 8th circular micro-structural and the 9th circular micro-structural
9>r
8>r
7>r
6>r
5>r
4>r
3>r
2>r
1>r
0.By these 4 layers of super materials of the stacked composition of elementary cell layer ecto-entad, this super material is carried out to emulation testing.As shown in figure 10, abscissa represents electromagnetic frequency, and ordinate represents s
11parameter d B value has absorbing property within the scope of high frequency 5-15GHz, within the scope of 6.71-13.21GHz, and s
11parameter d B value is-5dB, and test result shows, compares with individual layer elementary cell layer, and the super material of this multilayer elementary cell layer can significantly improve that to inhale wavestrip wide.
Be different from the situation of prior art, the at least two-layer elementary cell layer of the present invention is predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical.The super material of suction ripple that this multiplelayer microstructure layer forms, can have on the basis of good assimilation effect electromagnetic wave, significantly improves the bandwidth of inhaling ripple.
Figure 11 is the structural representation of an embodiment of a kind of electronic equipment of the present invention, as shown in figure 11, comprise shell, on the shell of electronic equipment 1301, be provided with wideband and inhale the super material 1302 of ripple, described super material 1302 comprises at least two-layer elementary cell layer, every layer of described elementary cell layer comprises that base material and cycle are arranged in a plurality of micro-structurals on described base material, every layer of described elementary cell layer be predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, wherein, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical.
According to actual conditions, that the super material elementary cell layer of described electronic equipment has is two-layer, three layers ... or N layer, at least comprise two-layer, the micro-structural of the super material elementary cell layer of every layer is different, and every layer of super material elementary cell layer be predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively.
The micro-structural of different elementary cell layers is different, thereby the micro-structural role of every one deck is also different, and micro-structural between layers can produce and influences each other, thereby comprehensively the effect of each layer reaches the effect that wideband is inhaled ripple.
Wherein, the shape of the micro-structural of described elementary cell layer is annular.
Wherein, described at least two-layer super material elementary cell layer is to carry out from skin to internal layer direction stacked arrangement according to the size of the size of the micro-structural of elementary cell layer every layer described.
Wherein, described at least two-layer super material elementary cell layer is to carry out from skin to internal layer direction stacked arrangement according to the size of the size of the micro-structural of elementary cell layer every layer described is ascending.
Wherein, described at least two-layer elementary cell layer is to carry out from skin to internal layer direction stacked arrangement according to the periodic size that the micro-structural cycle of elementary cell layer every layer described is arranged on described base material.
Wherein, described at least two-layer elementary cell layer is to be arranged in ascending the carrying out from skin to internal layer direction stacked arrangement of periodic size on described base material according to the micro-structural cycle of elementary cell layer every layer described.
Be different from the situation of prior art, the at least two-layer elementary cell layer of the present invention is predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical.The super material of suction ripple that this multiplelayer microstructure layer forms, can have on the basis of good assimilation effect electromagnetic wave, significantly improves the bandwidth of inhaling ripple.
To be that the present invention is a kind of obtain the flow chart of an embodiment that wideband is inhaled the method for the super material of ripple to Figure 12, as shown in figure 12, comprising:
Step S101: provide at least two-layer elementary cell layer by layer, every layer of described elementary cell layer comprises that base material and cycle are arranged in a plurality of micro-structurals on described base material, every layer of described elementary cell layer be predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, wherein, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical;
Step S102: described at least two-layer elementary cell layer is carried out stacked and form super material.
The micro-structural of different layers is different, thereby the micro-structural role of every one deck is also different, and micro-structural between layers can produce and influences each other, thereby comprehensively the effect of each layer reaches the effect that wideband is inhaled ripple.
Be different from the situation of prior art, the at least two-layer elementary cell layer of the present invention is predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical.The super material of suction ripple that this multiplelayer microstructure layer forms, can have on the basis of good assimilation effect electromagnetic wave, significantly improves the bandwidth of inhaling ripple.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a wideband is inhaled the super material of ripple, it is characterized in that: described super material comprises at least two-layer elementary cell layer, every layer of described elementary cell layer comprises that base material and cycle are arranged in a plurality of micro-structurals on described base material, every layer of described elementary cell layer be predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, wherein, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical.
2. the super material of suction ripple according to claim 1, is characterized in that: the shape of the micro-structural of described elementary cell layer is annular.
3. the super material of suction ripple according to claim 1, is characterized in that: described at least two-layer super material elementary cell layer is to carry out from skin to internal layer direction stacked arrangement according to the size of the size of the micro-structural of elementary cell layer every layer described.
4. the super material of suction ripple according to claim 3, is characterized in that: described at least two-layer super material elementary cell layer is to carry out from skin to internal layer direction stacked arrangement according to the size of the size of the micro-structural of elementary cell layer every layer described is ascending.
5. the super material of suction ripple according to claim 1, it is characterized in that: described super material comprises four layers of elementary cell layer, ground floor elementary cell layer comprises that the first base material and cycle be arranged in a plurality of the first micro-structurals on the first base material, and described the first micro-structural is circular micro-structural; Second layer elementary cell layer comprises that the second base material and cycle be arranged in a plurality of the second micro-structurals on the second base material, described the second micro-structural comprise the first circular micro-structural and radius be greater than the first circular micro-structural radius and with the second circular micro-structural of the concentric setting of the first circular micro-structural; The 3rd layer of elementary cell layer comprises that the 3rd base material and cycle are arranged in a plurality of the 3rd micro-structurals on the 3rd base material, described the 3rd micro-structural comprises the 3rd circular micro-structural, the 4th circular micro-structural, the 5th circular micro-structural, described the 3rd circular micro-structural, the 4th circular micro-structural, the 5th circular micro-structural radius increase successively and with one heart, spaced set; The 4th layer of elementary cell layer comprises that the 4th base material and cycle are arranged in a plurality of the 4th micro-structurals on the 4th base material, described the 4th micro-structural comprises the 6th circular micro-structural, the 7th circular micro-structural, the 8th circular micro-structural and the 9th circular micro-structural, described the 6th circular micro-structural, the 7th circular micro-structural, the 8th circular micro-structural, the 9th circular micro-structural radius increase successively and with one heart, spaced set.
6. the super material of suction ripple according to claim 5, is characterized in that: on described second layer elementary cell layer, the spacing of the second circular micro-structural and the first circular micro-structural is the first spacing; The 3rd circular micro-structural and the 4th circular micro-structural on described the 3rd layer of elementary cell layer, the spacing between the 4th circular micro-structural and the 5th circular micro-structural is the first spacing; The 6th circular micro-structural and the 7th circular micro-structural on described the 4th layer of elementary cell layer, the spacing between the 7th circular micro-structural and the 8th circular micro-structural and the 8th circular micro-structural and the 9th circular micro-structural is the first spacing.
7. the super material of suction ripple according to claim 6, is characterized in that: the described first to the 9th circular micro-structural is metal micro structure.
8. the super material of suction ripple according to claim 6, it is characterized in that: described the first base material, the second base material, the 3rd base material are identical with the 4th base material material, are FR-4 material, F4B material, polystyrene PS material, ferroelectric material, ferrite material or ferromagnetic material.
9. an electronic equipment, comprise shell, it is characterized in that: on described shell, be provided with wideband and inhale the super material of ripple, described super material comprises at least two-layer elementary cell layer, every layer of described elementary cell layer comprises that base material and cycle are arranged in a plurality of micro-structurals on described base material, every layer of described elementary cell layer be predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, wherein, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical.
10. obtain wideband and inhale a method for the super material of ripple, it is characterized in that: described method comprises:
Provide at least two-layer elementary cell layer by layer, every layer of described elementary cell layer comprises that base material and cycle are arranged in a plurality of micro-structurals on described base material, every layer of described elementary cell layer be predetermined frequency or the predetermined band of corresponding electromagnetic wave absorption respectively, wherein, the topology of the described a plurality of micro-structurals on described every layer of elementary cell layer and measure-alike, topology and/or the size of the micro-structural on different elementary cell layers are not identical;
Described at least two-layer elementary cell layer is carried out stacked and form super material.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210275382.XA CN103582401B (en) | 2012-08-03 | 2012-08-03 | Broadband absorbing Meta Materials |
| EP13824829.9A EP2882037B1 (en) | 2012-07-31 | 2013-07-31 | Wide-frequency wave-absorbing metamaterial, electronic device and method for obtaining wide-frequency wave-absorbing metamaterial |
| PCT/CN2013/080523 WO2014019514A1 (en) | 2012-07-31 | 2013-07-31 | Wide-frequency wave-absorbing metamaterial, electronic device and method for obtaining wide-frequency wave-absorbing metamaterial |
| US14/602,206 US9837725B2 (en) | 2012-07-31 | 2015-01-21 | Wide-frequency wave-absorbing metamaterial, electronic device and method for obtaining wide-frequency wave-absorbing metamaterial |
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| CN201210275382.XA CN103582401B (en) | 2012-08-03 | 2012-08-03 | Broadband absorbing Meta Materials |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943968A (en) * | 2014-04-28 | 2014-07-23 | 浙江大学 | Perfect matching wave absorbing layer composed of sub-wavelength resonance units and active circuits |
| CN108493622A (en) * | 2018-03-27 | 2018-09-04 | 电子科技大学 | A kind of dual dielectric layer absorbing material |
| CN111525277A (en) * | 2020-04-24 | 2020-08-11 | 太原理工大学 | Broadband adjustable wave absorber with vanadium dioxide metamaterial loaded on dielectric layer |
| CN111600134A (en) * | 2020-06-11 | 2020-08-28 | 中国电子科技集团公司第三十三研究所 | Graphene wave-absorbing metamaterial for encrypting computer display |
| CN112020294A (en) * | 2020-08-05 | 2020-12-01 | 深圳市佳晨科技有限公司 | Ultra-wide spectrum wave-absorbing material and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103943968A (en) * | 2014-04-28 | 2014-07-23 | 浙江大学 | Perfect matching wave absorbing layer composed of sub-wavelength resonance units and active circuits |
| CN103943968B (en) * | 2014-04-28 | 2016-08-24 | 浙江大学 | The perfect matching utilizing time wavelength resonant element and active circuit to constitute inhales ripple layer |
| CN108493622A (en) * | 2018-03-27 | 2018-09-04 | 电子科技大学 | A kind of dual dielectric layer absorbing material |
| CN111525277A (en) * | 2020-04-24 | 2020-08-11 | 太原理工大学 | Broadband adjustable wave absorber with vanadium dioxide metamaterial loaded on dielectric layer |
| CN111600134A (en) * | 2020-06-11 | 2020-08-28 | 中国电子科技集团公司第三十三研究所 | Graphene wave-absorbing metamaterial for encrypting computer display |
| CN112020294A (en) * | 2020-08-05 | 2020-12-01 | 深圳市佳晨科技有限公司 | Ultra-wide spectrum wave-absorbing material and preparation method thereof |
| CN114054112A (en) * | 2021-12-02 | 2022-02-18 | 北京大学 | Micro-fluidic technology-based medium-adjustable wave-absorbing metamaterial and performance regulation and control device thereof |
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