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Series:   Elements in Emerging Theories and Technologies in Metamaterials

Information Metamaterials

Published online by Cambridge University Press:  23 January 2021

Tie Jun Cui  and
Shuo Liu
Tie Jun Cui
Affiliation:
Southeast University
Shuo Liu
Affiliation:
Southeast University

Summary

Metamaterials have attracted enormous interests from both physics and engineering communities in the past 20 years, owing to their powerful ability in manipulating electromagnetic waves. However, the functionalities of traditional metamaterials are fixed at the time of fabrication. To control the EM waves dynamically, active components are introduced to the meta-atoms, yielding active metamaterials. Recently, a special kind of active metamaterials, digital coding and programmable metamaterials, are proposed, which can achieve dynamically controllable functionalities using field programmable gate array (FPGA). Most importantly, the digital coding representations of metamaterials set up a bridge between the digital world and physical world, and allow metamaterials to process digital information directly, leading to information metamaterials. In this Element, we review the evolution of information metamaterials, mainly focusing on their basic concepts, design principles, fabrication techniques, experimental measurement and potential applications. Future developments of information metamaterials are also envisioned.
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Keywords

metamaterialdigital codingelectromagnetisminformation sciencewireless communication
Type
Element
Information
Series: Elements in Emerging Theories and Technologies in Metamaterials
Online ISBN: 9781108955294
Publisher: Cambridge University Press
Print publication: 18 February 2021

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