WO2013040839A1 - Metamaterial and preparation method therefor - Google Patents

Metamaterial and preparation method therefor 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
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Prior art keywords
metamaterial
dielectric substrate
base material
units
organic resin
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PCT/CN2011/084501
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French (fr)
Chinese (zh)
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刘若鹏
赵治亚
盖佐•法布里齐亚
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深圳光启高等理工研究院
深圳光启创新技术有限公司
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Publication of WO2013040839A1 publication Critical patent/WO2013040839A1/en

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    • 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

Provided in the present invention is a metamaterial. The metamaterial comprises a substrate material and multiple metamaterial units randomly scattered within the substrate material. The metamaterial units each comprise a dielectric substrate and one or multiple artificial microstructures fixed on the dielectric substrate. Also provided in the present invention is a preparation method for the metamaterial. Because the artificial microstructures are randomly distributed within a three-dimensional space, thus the metamaterial is capable of generating specific electromagnetic responses for incident electromagnetic waves from random directions, and, compared with the prior metamaterial functional board, provides an extended range of applications

Description

说 明 书  Description
一种超材料及其制备方法  Metamaterial and preparation method thereof
【技术领域】  [Technical Field]
本发明涉及超材料领域。  The invention relates to the field of metamaterials.
【背景技术】 【Background technique】
超材料一般由多个超材料功能板层叠或按其他规律阵列组合而 成，超材料功能板包括介质基板以及阵列在介质基板上的多个人造微 结构，现有超材料的介质基板为均一材质的有机或无机基板，如 FR4、 TP1等等。阵列在介质基板上的多个人造微结构具有特定的电磁特性， 能对电场或磁场产生电磁响应，通过对人造微结构的结构和排列规律 进行精确设计和控制，可以使超材料呈现出各种一般材料所不具有的 电磁特性， 如能汇聚、 发散和偏折电磁波等。  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. By accurately designing and controlling the structure and arrangement of the artificial microstructures, the metamaterials can be presented in various kinds. Electromagnetic properties not found in general materials, such as convergence, divergence, and deflection of electromagnetic waves.
现有的超材料功能板一般为平面状的薄板，人造微结构均阵列在 介质基板的表面， 人造微结构的排布仅限于二维平面内， 不能形成三 维的立体排布。  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.
【发明内容】 [Summary of the Invention]
本发明所要解决的技术问题：一方面提供一种在三维立体空间内 具有人造微结构的超材料， 另一方面， 提供该超材料的制备方法。  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.
本发明实现发明目的采用的技术方案是， 一种超材料， 所述超材 料包括基体材料和随机分散在所述基体材料中的多个超材料单元，所 述超材料单元包括介质基板和固定在介质基板上的单个或多个人造 微结构。 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.
更好地， 所述基体材料为有机树脂材料。  More preferably, the base material is an organic resin material.
更好地， 所述介质基板为有机树脂基板、 陶瓷基板或铁电材料基 板。  More preferably, the dielectric substrate is an organic resin substrate, a ceramic substrate or a ferroelectric material substrate.
更好地， 所述人造微结构的材料为金属材料或陶瓷材料。  More preferably, the material of the artificial microstructure is a metal material or a ceramic material.
更好地， 所述人造微结构为工字形或工字衍生形。  More preferably, the artificial microstructure is an I-shaped or a I-shaped shape.
更好地， 所述人造微结构为开口环形或开口环衍生形。  More preferably, the artificial microstructure is an open circular or split ring derived shape.
本发明还提供一种超材料的制备方法， 包括以下步骤： 在介质基板上阵列并固定多个人造微结构， 制得超材料功能板； 将超材料功能板裁剪为多个超材料单元，所述超材料单元包括介 质基板和固定在介质基板上的单个或多个人造微结构；  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;
将所述多个超材料单元加入到具有液体或粉末状属性的基体材 料中， 将所述多个超材料单元与所述基体材料混合均匀；  Adding the plurality of metamaterial units to a base material having a liquid or powdery property, and uniformly mixing the plurality of metamaterial units with the base material;
将所述基体材料固化成型， 得到超材料。  The base material is cured and molded to obtain a metamaterial.
更好地，所述将所述基体材料固化成型的步骤包括将所述基体材 料置于模具中， 所述模具用以形成所述超材料预定的形状， 然后通过 冷却或高温烧结的方法进行固化成型， 得到超材料。  More preferably, 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.
更好地， 所述的超材料的制备方法， 包括以下步骤：  More preferably, the method for preparing the metamaterial comprises the following steps:
在有机树脂介质基板上阵列并固定多个金属微结构，制得超材料 功能板； 将超材料功能板裁剪为多个超材料单元，所述超材料单元包括有 机树脂介质基板和固定在有机树脂介质基板上的单个金属微结构； 将所述多个超材料单元加入到基体材料中，所述基体材料为熔融 的有机树脂，将所述多个超材料单元与所述有机树脂基体材料混合均 匀； Forming and fixing a plurality of metal microstructures on the organic resin dielectric substrate to obtain a metamaterial functional board; Cutting the metamaterial functional panel into a plurality of metamaterial units, the metamaterial unit comprising an organic resin dielectric substrate and a single metal microstructure fixed on the organic resin dielectric substrate; adding the plurality of metamaterial units to the matrix material The base material is a molten organic resin, and the plurality of metamaterial units are uniformly mixed with the organic resin base material;
将所述基体材料固化成型， 得到超材料。  The base material is cured and molded to obtain a metamaterial.
更好地， 所述的超材料的制备方法， 包括以下步骤：  More preferably, the method for preparing the metamaterial comprises the following steps:
在陶瓷介质基板上阵列并固定多个人造微结构，制得超材料功能 板；  Forming and fixing a plurality of artificial microstructures on the ceramic dielectric substrate to obtain a metamaterial functional board;
将超材料功能板裁剪为多个超材料单元，所述超材料单元包括陶 瓷介质基板和固定在陶瓷介质基板上的单个人造微结构；  Cutting the metamaterial functional panel into a plurality of metamaterial units, the metamaterial unit comprising a ceramic dielectric substrate and a single artificial microstructure fixed on the ceramic dielectric substrate;
将所述多个超材料单元加入到基体材料中，所述基体材料为陶瓷 粉末， 将所述多个超材料单元与所述陶瓷粉末中混合均匀；  Adding the plurality of metamaterial units to a base material, the base material being a ceramic powder, and uniformly mixing the plurality of metamaterial units with the ceramic powder;
将所述陶瓷粉末在高温下烧结， 固化成型， 得到超材料。  The ceramic powder is sintered at a high temperature and solidified to obtain a metamaterial.
通过本发明制备方法制得的超材料，由于人造微结构在三维空间 内呈随机分布， 所以， 对于任意方向入射的电磁波， 超材料均能产生 特定的电磁响应， 相比于现有超材料功能板而言， 其应用范围更广。  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.
【附图说明】 [Description of the Drawings]
图 1， 实施例 1超材料内部的结构示意图。  Figure 1. Example 1 Schematic diagram of the structure inside the metamaterial.
图 2， 实施例 2超材料内部的结构示意图。  Fig. 2 is a schematic view showing the structure inside the super material of the embodiment 2.
图 3， 工字衍生形结构图。  Figure 3, the structure of the derivative structure.
图 4， 开口环衍生形结构图。 图 5， 工字衍生形与开口环衍生形结构图。 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.
【具体实施方式】 【detailed description】
下面结合附图和实施例对本发明进行详细说明。  The invention will now be described in detail in conjunction with the drawings and embodiments.
实施例 1 Example 1
一种超材料， 超材料内部的结构示意图参看附图 1， 包括基体材 料 1和随机分散在基体材料 1中的多个超材料单元 2， 超材料单元 2 由介质基板以及固定在介质基板上的单个人造微结构组成，本实施例 中， 介质基板为有机树脂基板， 人造微结构为工字形金属微结构。  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. In this embodiment, the dielectric substrate is an organic resin substrate, and the artificial microstructure is an I-shaped metal microstructure.
本实施例中， 超材料的制备方法如下：  In this embodiment, the preparation method of the metamaterial is as follows:
1、 超材料功能板的制备， 超材料功能板由环氧树脂介质基板以 及阵列在环氧树脂介质基板上的金属微结构组成，  1. Preparation of a metamaterial functional board, the metamaterial functional board is composed of an epoxy dielectric substrate and a metal microstructure arrayed on the epoxy dielectric substrate.
首先制备介质基板，在反应器中将二甲基甲酰胺和乙二醇甲醚搅 拌混合， 配成混合溶剂， 加入双氰胺作为固化剂， 搅拌溶解， 加入环 氧树脂， 搅拌混合即得到环氧树脂胶液； 将制得的环氧树脂胶液熟化 后加入到胶液槽中， 本实施例采用玻璃纤维布作为增强材料， 玻璃纤 维布卷可通过卷辊和导向辊连续通过装有环氧树脂胶液的胶液槽，使 玻璃纤维布上浸渍环氧树脂胶液， 得到湿基材， 然后将湿基材固化成 型， 得到介质基板。  First, prepare 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. In this embodiment, 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.
然后通过沉铜电镀的方法在制得的介质基板上镀上一层铜箔，最 后通过曝光、刻蚀步骤将金属微结构的图形转移到铜箔上， 得到具有 2、 通过机械裁剪的方法对制得的超材料功能板进行裁剪， 以一 个铜微结构为单元将超材料功能板上的铜微结构阵列裁剪为多个超 材料单元，该超材料单元包括环氧树脂介质基板和固定在环氧树脂介 质基板上的单个铜微结构。 Then, 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. Cutting the prepared metamaterial function board by mechanical cutting, and cutting the copper microstructure array on the metamaterial function board into a plurality of metamaterial units by using a copper microstructure as a unit, the metamaterial unit including the ring An oxy-resin dielectric substrate and a single copper microstructure affixed to the epoxy dielectric substrate.
3、 将裁剪得到的多个超材料单元加入到有机树脂基体材料中， 不断搅拌， 使超材料单元与有机树脂基体材料混合均匀， 该步骤中的 有机树脂基体材料可以是具有固化剂的环氧树脂胶液。  3. 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.
4、 将有机树脂基体材料固化成型， 得到在基体材料内随机分散 有多个超材料单元的超材料。  4. 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.
本实施例中， 基体材料可根据不同的应用要求如机械性能、介电 常数或磁导率等进行选择， 同时， 有机树脂基体材料可以是具有固化 剂的环氧树脂胶液，也可以是具有固化剂的以环氧酚醛树脂或溴化环 氧树脂为主的其他有机树脂胶液， 还可以是熔融状态的其他有机树 脂。  In this embodiment, the base material may be selected according to different application requirements such as mechanical properties, dielectric constant or magnetic permeability. Meanwhile, 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.
本发明制得的超材料， 由于人造微结构在三维空间内呈随机分 布， 所以， 对于任意方向入射的电磁波， 超材料均能产生特定的电磁 响应， 相比于现有超材料功能板而言， 其应用范围更广。 另一方面， 由于是在三维的空间内进行人造微结构的分布，也为设计出电磁特性 更为独特的超材料提供了途径。 实施例 2  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
一种超材料， 超材料内部的结构示意图参看附图 2， 包括基体材 料 1和随机分散在基体材料 1中的多个超材料单元 2， 超材料单元 2 由介质基板以及固定在介质基板上的单个人造微结构组成，本实施例 中， 介质基板为有机树脂基板， 人造微结构为开口环形金属微结构。 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. In this embodiment, the dielectric substrate is an organic resin substrate. The artificial microstructure is an open annular metal microstructure.
本实施例中， 超材料的制备方法如下：  In this embodiment, the preparation method of the metamaterial is as follows:
1、 超材料功能板的制备， 超材料功能板由环氧树脂介质基板以 及阵列在环氧树脂介质基板上的金属微结构组成，  1. Preparation of a metamaterial functional board, the metamaterial functional board is composed of an epoxy dielectric substrate and a metal microstructure arrayed on the epoxy dielectric substrate.
首先制备介质基板，在反应器中将二甲基甲酰胺和乙二醇甲醚搅 拌混合， 配成混合溶剂， 加入双氰胺作为固化剂， 搅拌溶解， 加入环 氧树脂， 搅拌混合即得到环氧树脂胶液； 将制得的环氧树脂胶液熟化 后加入到胶液槽中， 本实施例采用玻璃纤维布作为增强材料， 玻璃纤 维布卷可通过卷辊和导向辊连续通过装有环氧树脂胶液的胶液槽，使 玻璃纤维布上浸渍环氧树脂胶液， 得到湿基材， 然后将湿基材固化成 型， 得到介质基板。  First, prepare 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. In this embodiment, 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.
然后通过沉铜电镀的方法在制得的介质基板上镀上一层铜箔，最 后通过曝光、刻蚀步骤将金属微结构的图形转移到铜箔上， 得到具有 铜微结构阵列的超材料功能板。  Then, 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.
2、 通过机械裁剪的方法对制得的超材料功能板进行裁剪， 以一 个铜微结构为单元将超材料功能板上的铜微结构阵列裁剪为多个超 材料单元，该超材料单元包括环氧树脂介质基板和固定在环氧树脂介 质基板上的单个铜微结构。  2. Cutting the prepared metamaterial function board by mechanical cutting, and cutting the copper microstructure array on the metamaterial function board into a plurality of metamaterial units by using a copper microstructure as a unit, the metamaterial unit including the ring An oxy-resin dielectric substrate and a single copper microstructure affixed to the epoxy dielectric substrate.
3、 将裁剪得到的多个超材料单元加入到陶瓷粉末基体材料中， 不断搅拌， 使超材料单元与陶瓷粉末基体材料混合均匀， 再将混有超 材料单元的基体材料置于以模具内，该模具可根据超材料拟加工的形 状进行设计。 3. Adding a plurality of super-material units obtained by cutting into the ceramic powder base material, and continuously stirring, so that the super-material unit and the ceramic powder base material are uniformly mixed, and then mixed with super The base material of the material unit is placed in a mold that can be designed according to the shape of the metamaterial to be machined.
4、 将模具内的陶瓷粉末基体材料在高温下烧结， 固化成型， 得 到在基体材料内随机分散有多个超材料单元的超材料。  4. 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.
本发明制得的超材料， 由于人造微结构在三维空间内呈随机分 布， 所以， 对于任意方向入射的电磁波， 超材料均能产生特定的电磁 响应， 相比于现有超材料功能板而言， 其应用范围更广。 同时， 由于 陶瓷材料具有较高的介电常数，所以整个超材料也具有较高的介电常 数， 并且， 由于陶瓷材料具有很大的材料选择性， 所以能比较容易地 选择出具有合适介电常数的陶瓷材料。  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. At the same time, 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.
作为具体的实施方式， 本发明中， 人造微结构的形状还可以是工 字衍生形或开口环衍生形或二者的结合， 其结构图参看附图 3、 附图 4和附图 5。  As a specific embodiment, in the present invention, 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.
在上述实施例中， 仅对本发明进行了示范性描述， 但是本领域技 术人员在阅读本专利申请后可以在不脱离本发明的精神和范围的情 况下对本发明进行各种修改。  In the above-described embodiments, the present invention has been exemplarily described, and various modifications of the present invention can be made by those skilled in the art without departing from the scope of the invention.

Claims

权 利 要 求 书 Claim
1、 一种超材料， 其特征在于： 所述超材料包括基体材料和随机 分散在所述基体材料中的多个超材料单元，所述超材料单元包括介质 基板和固定在介质基板上的单个或多个人造微结构。 What is claimed is: 1. A metamaterial comprising: a base material and a plurality of metamaterial units randomly dispersed in the matrix material, the metamaterial unit comprising a dielectric substrate and a single fixed on the dielectric substrate Or multiple artificial microstructures.
2、 根据权利要求 1所述的超材料， 其特征在于： 所述基体材料 为有机树脂材料。  The metamaterial according to claim 1, wherein the base material is an organic resin material.
3、 根据权利要求 1所述的超材料， 其特征在于： 所述介质基板 为有机树脂基板、 陶瓷基板或铁电材料基板。  The metamaterial according to claim 1, wherein the dielectric substrate is an organic resin substrate, a ceramic substrate or a ferroelectric material substrate.
4、 根据权利要求 1所述的超材料， 其特征在于： 所述人造微结 构的材料为金属材料或陶瓷材料。  The metamaterial according to claim 1, wherein the material of the artificial microstructure is a metal material or a ceramic material.
5、 根据权利要求 1所述的超材料， 其特征在于： 所述人造微结 构为工字形或工字衍生形。  The metamaterial according to claim 1, wherein the artificial microstructure is an I-shaped or a I-shaped shape.
6、 根据权利要求 1所述的超材料， 其特征在于： 所述人造微结 构为开口环形或开口环衍生形。  6. The metamaterial according to claim 1, wherein: the artificial microstructure is an open ring or a split ring-derived shape.
7、 一种超材料的制备方法， 其特征在于， 包括以下步骤： 在介质基板上阵列并固定多个人造微结构， 制得超材料功能板； 将超材料功能板裁剪为多个超材料单元，所述超材料单元包括介 质基板和固定在介质基板上的单个或多个人造微结构；  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;
将所述多个超材料单元加入到具有液体或粉末状属性的基体材 料中， 将所述多个超材料单元与所述基体材料混合均匀；  Adding the plurality of metamaterial units to a base material having a liquid or powdery property, and uniformly mixing the plurality of metamaterial units with the base material;
将所述基体材料固化成型， 得到超材料。 The base material is cured and molded to obtain a metamaterial.
8、 根据权利要求 Ί所述的超材料的制备方法， 其特征在于， 所 述将所述基体材料固化成型的步骤包括将所述基体材料置于模具中， 所述模具用以形成所述超材料预定的形状，然后通过冷却或高温烧结 的方法进行固化成型， 得到超材料。 8. The method of preparing a metamaterial according to claim ???, wherein said step of solidifying said base material comprises placing said base material in a mold, said mold being used to form said super The predetermined shape of the material is then solidified by cooling or high temperature sintering to obtain a metamaterial.
9、 根据权利要求 7所述的超材料的制备方法， 其特征在于， 包 括以下步骤：  9. The method of preparing a metamaterial according to claim 7, comprising the steps of:
在有机树脂介质基板上阵列并固定多个金属微结构，制得超材料 功能板；  Forming and fixing a plurality of metal microstructures on the organic resin dielectric substrate to obtain a metamaterial functional board;
将超材料功能板裁剪为多个超材料单元，所述超材料单元包括有 机树脂介质基板和固定在有机树脂介质基板上的单个金属微结构； 将所述多个超材料单元加入到基体材料中，所述基体材料为熔融 的有机树脂，将所述多个超材料单元与所述有机树脂基体材料混合均 匀；  Cutting the metamaterial functional panel into a plurality of metamaterial units, the metamaterial unit comprising an organic resin dielectric substrate and a single metal microstructure fixed on the organic resin dielectric substrate; adding the plurality of metamaterial units to the matrix material The base material is a molten organic resin, and the plurality of metamaterial units are uniformly mixed with the organic resin base material;
将所述基体材料固化成型， 得到超材料。  The base material is cured and molded to obtain a metamaterial.
10、 根据权利要求 7所述的超材料的制备方法， 其特征在于， 包 括以下步骤：  10. The method of preparing a metamaterial according to claim 7, comprising the steps of:
在陶瓷介质基板上阵列并固定多个人造微结构，制得超材料功能 板；  Forming and fixing a plurality of artificial microstructures on the ceramic dielectric substrate to obtain a metamaterial functional board;
将超材料功能板裁剪为多个超材料单元，所述超材料单元包括陶 瓷介质基板和固定在陶瓷介质基板上的单个人造微结构；  Cutting the metamaterial functional panel into a plurality of metamaterial units, the metamaterial unit comprising a ceramic dielectric substrate and a single artificial microstructure fixed on the ceramic dielectric substrate;
将所述多个超材料单元加入到基体材料中，所述基体材料为陶瓷 粉末， 将所述多个超材料单元与所述陶瓷粉末中混合均匀； 固化成型， 得到超材料。 Adding the plurality of metamaterial units to a base material, the base material being a ceramic powder, and uniformly mixing the plurality of metamaterial units with the ceramic powder; Curing and molding to obtain a metamaterial.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103259097B (en) * 2013-04-19 2016-01-20 电子科技大学 A kind of Terahertz metamaterial modular construction and preparation thereof and regulate and control method
CN105552566A (en) * 2016-02-04 2016-05-04 武汉理工大学 Vertical transparent metamaterial absorber
CN106252898A (en) * 2016-08-31 2016-12-21 哈尔滨工程大学 A kind of Meta Materials biobelt absorber based on the double annulus of random concentric metal
CN107057332B (en) * 2017-06-12 2020-01-24 深圳永昌和科技有限公司 3D printing metamaterial with good controllability and preparation method thereof
CN107919531A (en) * 2017-10-27 2018-04-17 天津理工大学 A kind of tunable metamaterial antenna for wireless power transmission system
CN108767492B (en) * 2018-04-25 2020-12-04 北京邮电大学 Adjustable terahertz broadband wave absorber
CN110011060B (en) * 2019-04-12 2021-01-19 西安交通大学 Electromagnetic camouflage metamaterial and application thereof
CN110112569A (en) * 2019-05-13 2019-08-09 佛山市粤海信通讯有限公司 A kind of manufacturing method of magnetoelectric composites

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1601673A (en) * 2004-08-31 2005-03-30 梁颖光 Method for preparing single-layer capacitor element and its products
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
US7940228B1 (en) * 2008-08-28 2011-05-10 Rockwell Collins, Inc. Metamaterial for use in low profile stripline fed radiating elements

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7482994B2 (en) * 2006-04-05 2009-01-27 The Hong Kong University Of Science And Technology Three-dimensional H-fractal bandgap materials and antennas
US7492329B2 (en) * 2006-10-12 2009-02-17 Hewlett-Packard Development Company, L.P. Composite material with chirped resonant cells
CN101488600A (en) * 2008-01-18 2009-07-22 西北工业大学 Left hand material consisted by chaotic distribution branch structure unit
CN101459270B (en) * 2008-12-12 2012-07-25 清华大学 Tunable full medium multi-frequency band isotrope zero-refraction flat-plate lens and preparation thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1601673A (en) * 2004-08-31 2005-03-30 梁颖光 Method for preparing single-layer capacitor element and its products
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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