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Four-Mode Programmable Metamaterial Using Ternary Foldable Origami.

Dinh Hai Le1, Sungjoon Lim1

  • 1School of Electrical and Electronic Engineering , Chung-Ang University , 221 Heukseok-Dong , Dongjak-Gu, Seoul 06974 , Republic of Korea.

ACS Applied Materials & Interfaces
|July 17, 2019
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Summary
This summary is machine-generated.

This study introduces a programmable metamaterial using foldable origami for GHz frequencies. It offers four modes, acting as a reflector or frequency-selectable absorber, with a simple, robust design.

Keywords:
coding metamaterialmetamaterialorigamiprogrammable metamaterialternary code

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Area of Science:

  • Metamaterials
  • Electromagnetics
  • Origami Engineering

Background:

  • Programmable metamaterials offer enhanced controllability over structural behaviors and functionalities compared to conventional ones.
  • Current reconfigurable structures face constraints due to structural complexity and high-tech requirements, limiting practical applications.

Purpose of the Study:

  • To investigate a novel programmable metamaterial utilizing ternary foldable origami for gigahertz-frequency applications.
  • To demonstrate the metamaterial's ability to achieve multiple electromagnetic functions through programmable folding.

Main Methods:

  • Numerical simulations and experimental investigations were conducted on a metamaterial based on ternary foldable origami.
  • The origami structure was coded using '0', '1', and '2' to represent different folding levels, enabling distinct functional modes.

Main Results:

  • The proposed metamaterial exhibited four transformable modes, functioning as an electromagnetic reflector and frequency-selectable absorbers.
  • The design, comprising simple dielectric paper and a bottom conductor without top conductive patterns, proved extremely robust.
  • Potential for extension to multiresonance modes and origami computing was demonstrated.

Conclusions:

  • A robust and programmable metamaterial was successfully designed and validated using ternary foldable origami for GHz applications.
  • The simple, conductive-free top layer design facilitates practical implementation and future advancements in metamaterial technology.