WO2013040839A1 - Méta-matériau et procédé pour sa préparation - Google Patents

Méta-matériau et procédé pour sa préparation Download PDF

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Publication number
WO2013040839A1
WO2013040839A1 PCT/CN2011/084501 CN2011084501W WO2013040839A1 WO 2013040839 A1 WO2013040839 A1 WO 2013040839A1 CN 2011084501 W CN2011084501 W CN 2011084501W WO 2013040839 A1 WO2013040839 A1 WO 2013040839A1
Authority
WO
WIPO (PCT)
Prior art keywords
metamaterial
dielectric substrate
base material
units
organic resin
Prior art date
Application number
PCT/CN2011/084501
Other languages
English (en)
Chinese (zh)
Inventor
刘若鹏
赵治亚
盖佐•法布里齐亚
Original Assignee
深圳光启高等理工研究院
深圳光启创新技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳光启高等理工研究院, 深圳光启创新技术有限公司 filed Critical 深圳光启高等理工研究院
Publication of WO2013040839A1 publication Critical patent/WO2013040839A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/002—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of materials engineered to provide properties not available in nature, e.g. metamaterials

Definitions

  • the invention relates to the field of metamaterials.
  • the metamaterial is generally formed by laminating a plurality of metamaterial functional panels or by other regular arrays.
  • the metamaterial functional panel comprises a dielectric substrate and a plurality of artificial microstructures arrayed on the dielectric substrate, and the existing metamaterial dielectric substrate is a uniform material.
  • Organic or inorganic substrates such as FR4, TP1 and the like.
  • the plurality of artificial microstructures of the array on the dielectric substrate have specific electromagnetic characteristics and can generate electromagnetic response to an electric field or a magnetic field.
  • the metamaterials can be presented in various kinds. Electromagnetic properties not found in general materials, such as convergence, divergence, and deflection of electromagnetic waves.
  • the existing metamaterial functional panels are generally planar thin plates, and the artificial microstructures are arrayed on the surface of the dielectric substrate.
  • the arrangement of the artificial microstructures is limited to a two-dimensional plane, and a three-dimensional three-dimensional arrangement cannot be formed.
  • the technical problem to be solved by the present invention is to provide a super material having an artificial microstructure in a three-dimensional space on the one hand, and a preparation method of the super material on the other hand.
  • the technical solution adopted by the present invention for achieving the object of the invention is a metamaterial, the super material
  • the material includes a base material and a plurality of metamaterial units randomly dispersed in the matrix material, the metamaterial unit including a dielectric substrate and a single or a plurality of artificial microstructures fixed on the dielectric substrate.
  • the base material is an organic resin material.
  • the dielectric substrate is an organic resin substrate, a ceramic substrate or a ferroelectric material substrate.
  • the material of the artificial microstructure is a metal material or a ceramic material.
  • the artificial microstructure is an I-shaped or a I-shaped shape.
  • the artificial microstructure is an open circular or split ring derived shape.
  • the present invention also provides a method for preparing a metamaterial, comprising the steps of: arranging and fixing a plurality of artificial microstructures on a dielectric substrate to obtain a metamaterial functional panel; and cutting the metamaterial functional panel into a plurality of metamaterial units.
  • the metamaterial unit includes a dielectric substrate and a single or a plurality of artificial microstructures fixed on the dielectric substrate;
  • the base material is cured and molded to obtain a metamaterial.
  • the step of solidifying the base material comprises placing the base material in a mold for forming a predetermined shape of the metamaterial, and then curing by cooling or high temperature sintering. Molding, obtaining metamaterials.
  • the method for preparing the metamaterial comprises the following steps:
  • the base material is a molten organic resin, and the plurality of metamaterial units are uniformly mixed with the organic resin base material;
  • the base material is cured and molded to obtain a metamaterial.
  • the method for preparing the metamaterial comprises the following steps:
  • the metamaterial unit comprising a ceramic dielectric substrate and a single artificial microstructure fixed on the ceramic dielectric substrate;
  • the base material being a ceramic powder, and uniformly mixing the plurality of metamaterial units with the ceramic powder;
  • the ceramic powder is sintered at a high temperature and solidified to obtain a metamaterial.
  • the metamaterial prepared by the preparation method of the invention has a random electromagnetic distribution in the three-dimensional space, so that the super-material can generate a specific electromagnetic response for electromagnetic waves incident in any direction, compared with the existing metamaterial function. For the board, it has a wider range of applications.
  • FIG. 1 Schematic diagram of the structure inside the metamaterial.
  • Fig. 2 is a schematic view showing the structure inside the super material of the embodiment 2.
  • Figure 4 is a diagram showing the structure of the split ring.
  • Fig. 5 is a structural diagram of a derivative-shaped shape and a split ring derived structure.
  • a metamaterial a structural schematic diagram of the interior of the metamaterial, referring to FIG. 1, comprising a base material 1 and a plurality of metamaterial units 2 randomly dispersed in the base material 1, the metamaterial unit 2 being supported by the dielectric substrate and fixed on the dielectric substrate
  • a single artificial microstructure is composed.
  • the dielectric substrate is an organic resin substrate
  • the artificial microstructure is an I-shaped metal microstructure.
  • the preparation method of the metamaterial is as follows:
  • the metamaterial functional board is composed of an epoxy dielectric substrate and a metal microstructure arrayed on the epoxy dielectric substrate.
  • a dielectric substrate stir and mix dimethylformamide and ethylene glycol methyl ether in a reactor, prepare a mixed solvent, add dicyandiamide as a curing agent, stir and dissolve, add epoxy resin, stir and mix to obtain a ring.
  • Oxygen resin glue the obtained epoxy resin glue is matured and added to the glue tank.
  • glass fiber cloth is used as the reinforcing material, and the glass fiber cloth roll can be continuously passed through the winding ring through the winding roller and the guide roller.
  • the glue bath of the oxygen resin glue immerses the epoxy fiber glue on the glass fiber cloth to obtain a wet substrate, and then solidifies the wet substrate to obtain a dielectric substrate.
  • a copper foil is plated on the prepared dielectric substrate by means of copper plating, and finally the pattern of the metal microstructure is transferred to the copper foil through an exposure and etching step, thereby obtaining 2.
  • Adding a plurality of the super-material units obtained by cutting into the organic resin base material, and continuously stirring to uniformly mix the meta-material unit and the organic resin base material, and the organic resin base material in the step may be an epoxy having a curing agent. Resin glue.
  • the organic resin matrix material is solidified and molded to obtain a metamaterial in which a plurality of metamaterial units are randomly dispersed in the matrix material.
  • the base material may be selected according to different application requirements such as mechanical properties, dielectric constant or magnetic permeability.
  • the organic resin base material may be an epoxy resin glue having a curing agent, or may have
  • the other organic resin glue mainly composed of an epoxy phenol resin or a brominated epoxy resin as a curing agent may be another organic resin in a molten state.
  • the metamaterial prepared by the invention has a random electromagnetic distribution in the three-dimensional space, so that the super-material can generate a specific electromagnetic response for electromagnetic waves incident in any direction, compared with the existing metamaterial functional board. , its application is broader. On the other hand, because of the distribution of artificial microstructures in a three-dimensional space, it also provides a way to design a more unique metamaterial with electromagnetic properties.
  • Example 2
  • a metamaterial a schematic diagram of the structure inside the metamaterial, see Fig. 2, including a base material And a plurality of metamaterial units 2 randomly dispersed in the base material 1.
  • the metamaterial unit 2 is composed of a dielectric substrate and a single artificial microstructure fixed on the dielectric substrate.
  • the dielectric substrate is an organic resin substrate.
  • the artificial microstructure is an open annular metal microstructure.
  • the preparation method of the metamaterial is as follows:
  • the metamaterial functional board is composed of an epoxy dielectric substrate and a metal microstructure arrayed on the epoxy dielectric substrate.
  • a dielectric substrate stir and mix dimethylformamide and ethylene glycol methyl ether in a reactor, prepare a mixed solvent, add dicyandiamide as a curing agent, stir and dissolve, add epoxy resin, stir and mix to obtain a ring.
  • Oxygen resin glue the obtained epoxy resin glue is matured and added to the glue tank.
  • glass fiber cloth is used as the reinforcing material, and the glass fiber cloth roll can be continuously passed through the winding ring through the winding roller and the guide roller.
  • the glue bath of the oxygen resin glue immerses the epoxy fiber glue on the glass fiber cloth to obtain a wet substrate, and then solidifies the wet substrate to obtain a dielectric substrate.
  • a copper foil is plated on the prepared dielectric substrate by means of copper plating, and finally the pattern of the metal microstructure is transferred to the copper foil through an exposure and etching step to obtain a metamaterial function having a copper microstructure array. board.
  • the ceramic powder base material in the mold is sintered at a high temperature and solidified to obtain a super material in which a plurality of metamaterial units are randomly dispersed in the matrix material.
  • the metamaterial prepared by the invention has a random electromagnetic distribution in the three-dimensional space, so that the super-material can generate a specific electromagnetic response for electromagnetic waves incident in any direction, compared with the existing metamaterial functional board. , its application is broader.
  • the ceramic material since the ceramic material has a high dielectric constant, the entire metamaterial also has a high dielectric constant, and since the ceramic material has a large material selectivity, it is relatively easy to select a suitable dielectric. Constant ceramic material.
  • the shape of the artificial microstructure may also be a trade-in shape or a split ring-derived shape or a combination of the two, and the structural drawings thereof are shown in Fig. 3, Fig. 4 and Fig. 5.

Abstract

La présente invention concerne un méta-matériau comprenant un matériau de substrat et des unités multiples de méta-matériau dispersées aléatoirement au sein du matériau de substrat. Les unités de méta-matériau comprennent chacune un substrat diélectrique et une ou plusieurs microstructures artificielles fixées sur le substrat diélectrique. La présente invention concerne également un procédé de préparation du méta-matériau. Comme les microstructures artificielles sont réparties aléatoirement au sein d'un espace tridimensionnel, le méta-matériau est donc capable de générer des réponses électromagnétiques spécifiques à des ondes électromagnétiques incidentes provenant de directions aléatoires et, comparé à des panneaux fonctionnels en méta-matériau selon la technique antérieure, offre une gamme élargie d'applications.
PCT/CN2011/084501 2011-09-20 2011-12-23 Méta-matériau et procédé pour sa préparation WO2013040839A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110179700.8 2011-09-20
CN2011101797008A CN102480020A (zh) 2011-09-20 2011-09-20 一种超材料及其制备方法

Publications (1)

Publication Number Publication Date
WO2013040839A1 true WO2013040839A1 (fr) 2013-03-28

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CN (1) CN102480020A (fr)
WO (1) WO2013040839A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103259097B (zh) * 2013-04-19 2016-01-20 电子科技大学 一种太赫兹超材料单元结构及其制备与调控方法
CN105552566A (zh) * 2016-02-04 2016-05-04 武汉理工大学 一种立式透明超材料吸波体
CN106252898A (zh) * 2016-08-31 2016-12-21 哈尔滨工程大学 一种基于随机的同心金属双圆环的超材料双带吸收器
CN107057332B (zh) * 2017-06-12 2020-01-24 深圳永昌和科技有限公司 一种可控性好的3d打印超材料及其制备方法
CN107919531A (zh) * 2017-10-27 2018-04-17 天津理工大学 一种用于无线功率传输系统的可调谐超材料天线
CN108767492B (zh) * 2018-04-25 2020-12-04 北京邮电大学 可调太赫兹宽带吸波器
CN110011060B (zh) * 2019-04-12 2021-01-19 西安交通大学 一种电磁伪装超材料及其应用
CN110112569A (zh) * 2019-05-13 2019-08-09 佛山市粤海信通讯有限公司 一种电磁复合材料的制造方法

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US7492329B2 (en) * 2006-10-12 2009-02-17 Hewlett-Packard Development Company, L.P. Composite material with chirped resonant cells
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CN101459270B (zh) * 2008-12-12 2012-07-25 清华大学 可调谐全介质多频段各向同性零折射平板透镜及其制备方法

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CN1601673A (zh) * 2004-08-31 2005-03-30 梁颖光 单层电容器元件的制备方法及其产品
US7940228B1 (en) * 2008-08-28 2011-05-10 Rockwell Collins, Inc. Metamaterial for use in low profile stripline fed radiating elements
US20100203454A1 (en) * 2009-02-10 2010-08-12 Mark Brongersma Enhanced transparent conductive oxides
US20100271692A1 (en) * 2009-04-08 2010-10-28 New Jersey Institute Of Technology Metamaterials with terahertz response and methods of making same

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