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Topological self-adaptive electromagnetic wave-absorbing structure and preparation method thereof

An electromagnetic absorption and self-adaptive technology, which is applied in the direction of electrical components, magnetic/electric field shielding, antennas, etc., can solve the problems of electromagnetic absorption performance changes and limitations, and achieve enhanced ductility, increased degrees of freedom, multiple degrees of freedom and The effect of flexibility

Active Publication Date: 2021-06-08
浙大宁波理工学院
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the ductility of artificial electromagnetic materials is limited by the mechanical properties (Young's modulus) of flexible materials. At the same time, changes in the topology of the unit structure in some regions of artificial electromagnetic materials will lead to changes in electromagnetic absorption properties.

Method used

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  • Topological self-adaptive electromagnetic wave-absorbing structure and preparation method thereof
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  • Topological self-adaptive electromagnetic wave-absorbing structure and preparation method thereof

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The described embodiments are only some, not all, embodiments of the present invention. The following detailed description of the embodiments of the present invention provided in conjunction with the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.

[0035] Such as figure 1 , 2 As shown, this embodiment provides a topology-adaptive electromagnetic absorbing structure 100, which is formed by periodic distribution and connection of several super units 10; and each super unit is composed of four basic units 1 .

[0036] Such as Figure 1-5 As shown, speci...

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Abstract

The invention discloses a topological self-adaptive electromagnetic wave-absorbing structure and a preparation method thereof. The topological self-adaptive electromagnetic wave-absorbing structure is formed by carving fracture traces on a plane base body and comprises a plurality of super units which are periodically arranged and connected, wherein each super unit is formed by arranging and connecting four basic units in a 2*2 array, two vertexes, located on the same edge, of each basic unit are connected with the adjacent vertexes of the adjacent basic units correspondingly, all the basic units can rotate around the connecting vertexes, the super units can be unfolded or folded in the horizontal plane of the structure, and therefore the whole wave absorbing structure can be subjected to topological deformation freely, so as to improve the ductility of the electromagnetic wave-absorbing structure. The wave-absorbing structure can still maintain excellent wave-absorbing performance in the topological form change process, and meets the requirements of variable electromagnetic environments.

Description

technical field [0001] The invention belongs to the technical field of new artificial electromagnetic materials, and in particular relates to a topological self-adaptive electromagnetic wave-absorbing structure and a preparation method thereof. Background technique [0002] The macroscopic response of materials existing in nature to external electromagnetic fields can be considered as the average value of the electromagnetic responses of hundreds of millions of individual atoms to external electromagnetic fields. According to the concept of artificial electromagnetic material design, independent unit structures are not necessarily atoms or molecules, they can be any tiny structure, and the size of the structure is much smaller than the wavelength of electromagnetic waves. Through the design and effective arrangement of the internal micro-unit structure, people can obtain materials with different electromagnetic responses, and realize the regulation of electromagnetic waves o...

Claims

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Application Information

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IPC IPC(8): H05K9/00H01Q17/00
CPCH01Q17/00H05K9/0088
Inventor 沈炼杨巍张晟
Owner 浙大宁波理工学院
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