CN104519726A - Honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial - Google Patents
Honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial Download PDFInfo
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- CN104519726A CN104519726A CN201310461885.0A CN201310461885A CN104519726A CN 104519726 A CN104519726 A CN 104519726A CN 201310461885 A CN201310461885 A CN 201310461885A CN 104519726 A CN104519726 A CN 104519726A
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Abstract
The invention discloses honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial. The honeycomb core material comprises a plurality of honeycomb periodic structure units and is characterized in that artificial metal microstructures are attached to honeycomb walls of at least part of the honeycomb periodic structural units. Both the compound wave-absorbing material and the honeycomb enhanced metamaterial comprise the honeycomb core material. Compared with the traditional pure-honeycomb structure of the prior art, the honeycomb core material has the advantages that the metal microstructures are attached to the honeycomb walls, leading to dielectric parameter and permeability greatly improved within the X wave band, besides, within the frequency band, the permeability generates magnetic resonance so as to enhance loss; In this way, remarkable advantages are imparted on production of the narrow-band wave-absorbing material and high-loss shielding material.
Description
Technical field
The present invention relates to Meta Materials field, especially relate to comb core, composite wave-suction material and Honeycomb type Meta Materials.
Background technology
Along with the development of wireless communication technique, the impact of electromagenetic wave radiation on environment increases day by day.Utilize absorbing material to administer electromagnetic pollution and improve a great problem that problem that electromagnetic compatibility produces has become material science.Absorbing material refers to and can effectively absorb people's radio magnetic wave and the class material making its attenuation loss, and incident electromagnetic wave to be changed into heat energy or other form of energy by the various different loss mechanism of material and reaches the object of inhaling ripple by it.Absorbing material has structural type and application type, and the former mainly contains wedge shape, foam shape, plate shaped etc., and the latter is composited by absorbent and base material.The many employings of existing coating-type absorbing materials have single or multiple lift dielectric or magnetic material, and the material namely formed at least has magnetic loss or dielectric loss, or both have concurrently.But it is very large that ubiquitous problem is density, and working band is also wide not.For the research aspect of structural absorbing mater ials, mainly concentrate on and thermoplasticity PEEK, PEK, PPS etc. made monofilament or multifilament and carbon fiber, ceramic fibre etc. and mix and be woven into composite material fabric and Irregular Section Carbon Fiber aspect, the also problem of ubiquity thickness and weight.
Have now yet and adopt light-weighted material to make light-duty structural absorbing mater ials, as adopted honeycomb and foamed material, but adopt the absorbing material done in this way, all there is keriotheca does not have loss, the imperfect shortcoming of wave-absorbing effect.
Summary of the invention
One of technical problem to be solved by this invention is to provide a kind of comb core with independent wave-sucking performance; Two of technical problem to be solved by this invention is to provide a kind of composite wave-suction material comprising aforementioned cellular core; Three of technical problem to be solved by this invention is to provide a kind of Honeycomb type Meta Materials comprising aforementioned cellular core.
The present invention solves aforementioned technical problem by following technological means:
A kind of comb core, comprises multiple honeycomb Periodic Building Unit, the honeycomb wall of at least part of described honeycomb Periodic Building Unit is attached with artificial metal's micro-structural.
Preferably, described artificial metal's micro-structural comprises annular micro-structural.
Preferably, described annular micro-structural comprises polygon ring micro-structural and/or circular rings micro-structural and/or vesica piscis micro-structural.
Preferably, described artificial metal's micro-structural is artificial metallic copper micro-structural.
Preferably, described honeycomb Periodic Building Unit is hexagonal structure, rectangular configuration, triangular structure or v-shaped structure.
Preferably, all honeycomb walls partial cell wall of described honeycomb Periodic Building Unit being attached with described artificial metal's micro-structural or described honeycomb Periodic Building Unit are all attached with described artificial metal's micro-structural.
A kind of composite wave-suction material, comprises the comb core described in aforementioned any one.
A kind of Honeycomb type Meta Materials, comprise multi-layer metamaterial feature board, described Meta Materials feature board is fixed with comb core between any two, described comb core comprises multiple honeycomb Periodic Building Unit, and the honeycomb wall of at least part of described honeycomb Periodic Building Unit is attached with artificial metal's micro-structural.
Preferably, described Meta Materials feature board is organic resin material or ceramic material.
The pure honeycomb traditional relative to prior art, the metal micro structure of comb core of the present invention due to its honeycomb wall adhering to, its dielectric parameter and magnetic permeability can greatly improve in X-band, because in this frequency range, magnetic permeability creates magnetic resonance, thus loss also has enhancing, therefore, comb core of the present invention has significant advantage in the preparation of arrowband absorbing material and high loss shielding material.
Accompanying drawing explanation
Fig. 1 is the structural representation of the comb core of the specific embodiment of the invention;
Fig. 2 is the schematic enlarged-scale view of the honeycomb Periodic Building Unit of the comb core of Fig. 1;
Fig. 3 is the effective electromagnetic parameter of the comb core of the specific embodiment of the invention.
Embodiment
Below contrast accompanying drawing and combine preferred embodiment the invention will be further described.
As illustrated in fig. 1 and 2, a kind of comb core 100, it comprises multiple honeycomb Periodic Building Unit 110 and forms, and wherein, the honeycomb wall 111 of at least part of honeycomb Periodic Building Unit 110 is attached with artificial metal's micro-structural 200.Artificial metal's micro-structural 200 can adopt various metal material, and honeycomb Periodic Building Unit 110 can be the structure of various shape, such as: hexagonal structure, rectangular configuration, triangular structure or v-shaped structure.Artificial metal's micro-structural is attached on the honeycomb wall 111 of honeycomb Periodic Building Unit 110 by the present invention, and honeycomb wall 111 itself has very large surface area, thus, comb core can be formed a large amount of artificial metal's micro-structurals, thus greatly improve power saving parameter and the magnetic permeability of comb core, electromagnetic wave loss can be increased simultaneously.Based on this characteristic, comb core of the present invention can be widely used in various Wave suction composite material, especially the suction ripple of arrowband and high loss shielding material, comb core of the present invention can either play the effect that physics strengthens in Wave suction composite material, has again independently wave-sucking performance or form common wave-absorbing effect with other parts of Wave suction composite material.
For obtaining electromagnetic specific effect effect, artificial metal's micro-structural 200 can have different concrete shapes, such as: the annular micro-structurals such as polygon ring micro-structural, circular rings micro-structural, vesica piscis micro-structural or their direct combinations.The all honeycomb walls partial cell wall of described honeycomb Periodic Building Unit being attached with described artificial metal's micro-structural or described honeycomb Periodic Building Unit are all attached with described artificial metal's micro-structural.
As preferred scheme, artificial metal's micro-structural 200 preferably adopts copper, because the cost approach of copper and mode aspect maturation, and cost performance is also higher.
Present embodiment also provides a kind of Honeycomb type Meta Materials, comprise multi-layer metamaterial feature board, described Meta Materials feature board is fixed with comb core between any two, described comb core comprises multiple honeycomb Periodic Building Unit, and the honeycomb wall of at least part of described honeycomb Periodic Building Unit is attached with artificial metal's micro-structural.As a kind of embody rule of aforementioned cellular core, the preferred version of aforementioned cellular core is applicable to the Honeycomb type Meta Materials described in this part too.Self-evident, the Honeycomb type Meta Materials of this part has the corresponding beneficial effect of aforementioned cellular core too.Aforementioned Meta Materials feature board can adopt existing material in prior art, preferably adopts organic resin material or ceramic material.
Embodiment 1
Figure 2 shows that the comb core of the present embodiment is the comb core of the annular micro-structural adopting rectangular metal frame-type, its metal material is copper; As shown in Figure 3, be its effective electromagnetic parameter.Wherein upper left is effective dielectric constant, and upper right is the impedance of equivalent permeability, this material of lower-left, and bottom right is the equivalent refractive index of this material.
Embodiment 2
The difference of the present embodiment and embodiment 1 is only: the metal micro structure of the comb core of the present embodiment is annular micro-structural, and through experiment, it can obtain the technique effect roughly the same with embodiment 1.
Embodiment 3
The difference of the present embodiment and embodiment 1 is only: the metal micro structure of the comb core of the present embodiment is vesica piscis micro-structural, and through experiment, it can obtain the technique effect roughly the same with embodiment 1.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, some equivalent to substitute or obvious modification can also be made, and performance or purposes identical, all should be considered as belonging to protection scope of the present invention.
Claims (9)
1. a comb core, comprises multiple honeycomb Periodic Building Unit, it is characterized in that: the honeycomb wall of at least part of described honeycomb Periodic Building Unit is attached with artificial metal's micro-structural.
2. comb core according to claim 1, is characterized in that: described artificial metal's micro-structural comprises annular micro-structural.
3. comb core according to claim 2, is characterized in that: described annular micro-structural comprises polygon ring micro-structural and/or circular rings micro-structural and/or vesica piscis micro-structural.
4. the comb core according to claim 1,2 or 3, is characterized in that: described artificial metal's micro-structural is artificial metallic copper micro-structural.
5. the comb core according to claim 1,2 or 3, is characterized in that: described honeycomb Periodic Building Unit is hexagonal structure, rectangular configuration, triangular structure or v-shaped structure.
6. comb core according to claim 5, is characterized in that: all honeycomb walls partial cell wall of described honeycomb Periodic Building Unit being attached with described artificial metal's micro-structural or described honeycomb Periodic Building Unit are all attached with described artificial metal's micro-structural.
7. a composite wave-suction material, is characterized in that: comprise the comb core described in claim 1-6 any one.
8. a Honeycomb type Meta Materials, comprise multi-layer metamaterial feature board, described Meta Materials feature board is fixed with comb core between any two, described comb core comprises multiple honeycomb Periodic Building Unit, it is characterized in that: the honeycomb wall of at least part of described honeycomb Periodic Building Unit is attached with artificial metal's micro-structural.
9. Honeycomb type Meta Materials according to claim 8, is characterized in that: described Meta Materials feature board is organic resin material or ceramic material.
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| CN201310461885.0A CN104519726A (en) | 2013-09-29 | 2013-09-29 | Honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial |
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| CN201310461885.0A CN104519726A (en) | 2013-09-29 | 2013-09-29 | Honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial |
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| CN107683078A (en) * | 2017-09-28 | 2018-02-09 | 中国人民解放军空军工程大学 | A kind of absorbing material and preparation method thereof |
| CN110012654A (en) * | 2019-03-18 | 2019-07-12 | 南京工业职业技术学院 | Novel dish shielding finger |
| CN111086301A (en) * | 2019-12-13 | 2020-05-01 | 浙江工业大学 | Superstructure honeycomb composite wave-absorbing material |
| CN112670719A (en) * | 2020-12-15 | 2021-04-16 | 华南理工大学 | Four-dimensional stealth wave-absorbing structure and preparation method thereof |
| CN117087247A (en) * | 2023-10-18 | 2023-11-21 | 西安远飞航空技术发展有限公司 | Wave-absorbing composite material, preparation method thereof and shielding case |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196622B (en) * | 2015-09-22 | 2017-06-30 | 北京新立机械有限责任公司 | A kind of cellular high temperature resistant absorbent structure material |
| CN107116849A (en) * | 2017-04-21 | 2017-09-01 | 中国航空工业集团公司基础技术研究院 | A kind of embedded suction ripple comb core, its preparation method and implantation frock |
| CN107683078A (en) * | 2017-09-28 | 2018-02-09 | 中国人民解放军空军工程大学 | A kind of absorbing material and preparation method thereof |
| CN110012654A (en) * | 2019-03-18 | 2019-07-12 | 南京工业职业技术学院 | Novel dish shielding finger |
| CN110012654B (en) * | 2019-03-18 | 2020-09-25 | 南京工业职业技术学院 | Novel dish-shaped shielding reed |
| CN111086301A (en) * | 2019-12-13 | 2020-05-01 | 浙江工业大学 | Superstructure honeycomb composite wave-absorbing material |
| CN112670719A (en) * | 2020-12-15 | 2021-04-16 | 华南理工大学 | Four-dimensional stealth wave-absorbing structure and preparation method thereof |
| CN117087247A (en) * | 2023-10-18 | 2023-11-21 | 西安远飞航空技术发展有限公司 | Wave-absorbing composite material, preparation method thereof and shielding case |
| CN117087247B (en) * | 2023-10-18 | 2024-01-12 | 西安远飞航空技术发展有限公司 | Wave-absorbing composite material, preparation method thereof and shielding case |
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Application publication date: 20150415 |