Three-dimensional reconfigurable broadband wide-angular-domain wave-absorbing material based on Miura origami

Abstract

The invention belongs to the technical field of stealth materials, and relates to a three-dimensional reconfigurable broadband wide-angular-domain wave-absorbing material based on Miura origami. The material comprises an origami structure, a substrate layer and a metal back plate which are sequentially arranged in the electromagnetic propagation direction, and the origami structure comprises a reconfigurable substrate and a metamaterial structure unit printed on the reconfigurable substrate. According to the three-dimensional reconfigurable broadband wide-angular-domain wave-absorbing material based on the Miura origami of the invention, the wave-absorbing material can be dynamically adjusted, and ultra-wideband absorption of TM waves is realized by optimizing the structural design; and meanwhile, the reconfigurable wave-absorbing material has good oblique incidence performance and a wide angular domain. With continuous development of shape memory alloy, 4D printing, origami and other micro-manufacturing technologies, the material has a wider application space in manufacturing reconfigurable devices.

Description

Technical field [0001] The present invention belongs to the technical field of invasive materials, and in particular to a three-dimensional reconfigurable broadband wide-angle beam absorbing material based on three-purpose origami. Background technique [0002] In the context of information warfare, electromagnetic absorbing materials are one of the effective ways to achieve stealth technologies, and have become the focus of competition research. At the same time, it has broad application prospects in the fields of wireless communication, electromagnetic shielding and electromagnetic compatibility. In order to achieve efficient electromagnetic absorbing characteristics, conventional absorbing materials have conducted in-depth research on the physical and chemical properties of the components of the material, and prepared a series of suction with conductive losses, dielectric loss and magnetic loss characteristics. Wave material. However, with the study of the performance characte...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned absorbing materials are all two-dimensional metamaterials. Although they have the characteristics of small thickness and can be integrated, once the structure is designed, it is challenging to change the structure of the absorbing material.

In addition, while the general metamaterial absorbing material maintains broadband absorption, the maximum incident angle is between 30°-60°, and as the incident angle increases, the performance of the absorbing material will gradually deteriorate, resulting in the actual There are significant limitations in the application

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