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Metamaterials: Theory, Design, and Applications
TLDR
Theory, design, and applications of metamaterials go beyond left-handed materials (LHM) or negative index materials (NIM) and focus on recent research activity as mentioned in this paper.Abstract:
Metamaterials:Theory, Design, and Applications goes beyond left-handed materials (LHM) or negative index materials (NIM) and focuses on recent research activity. Included here is an introduction to optical transformation theory, revealing invisible cloaks, EM concentrators, beam splitters, and new-type antennas, a presentation of general theory on artificial metamaterials composed of periodic structures, coverage of a new rapid design method for inhomogeneous metamaterials, which makes it easier to design a cloak, and new developments including but not limited to experimental verification of invisible cloaks, FDTD simulations of invisible cloaks, the microwave and RF applications of metamaterials, sub-wavelength imaging using anisotropic metamaterials, dynamical metamaterial systems, photonic metamaterials, and magnetic plasmon effects of metamaterials.read more
Citations
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Journal ArticleDOI
Coding metamaterials, digital metamaterials and programmable metamaterials
TL;DR: Digital metamaterials consisting of two kinds of unit cells whose different phase responses allow them to act as ‘0’ and ‘1’ bits are developed to enable controlled manipulation of electromagnetic waves.
Posted Content
Coding Metamaterials, Digital Metamaterials and Programming Metamaterials
TL;DR: In this paper, Wu et al. proposed a digital metamaterial with two kinds of unit cells with 0 and π phase responses, which they named as "0" and "1" elements.
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Smart Radio Environments Empowered by Reconfigurable Intelligent Surfaces: How It Works, State of Research, and The Road Ahead
Marco Di Renzo,Alessio Zappone,Merouane Debbah,Mohamed-Slim Alouini,Chau Yuen,Julien de Rosny,Sergei A. Tretyakov +6 more
TL;DR: Reconfigurable intelligent surfaces (RISs) can be realized in different ways, which include (i) large arrays of inexpensive antennas that are usually spaced half of the wavelength apart; and (ii) metamaterial-based planar or conformal large surfaces whose scattering elements have sizes and inter-distances much smaller than the wavelength.
Posted Content
Smart Radio Environments Empowered by Reconfigurable Intelligent Surfaces: How it Works, State of Research, and Road Ahead.
Marco Di Renzo,Alessio Zappone,Merouane Debbah,Mohamed-Slim Alouini,Chau Yuen,Julien de Rosny,Sergei A. Tretyakov +6 more
TL;DR: The emerging research field of RIS-empowered SREs is introduced; the most suitable applications of RISs in wireless networks are overviewed; an electromagnetic-based communication-theoretic framework for analyzing and optimizing metamaterial-based RISs is presented; and the most important research issues to tackle are discussed.
Journal ArticleDOI
A programmable metasurface with dynamic polarization, scattering and focusing control
Huanhuan Yang,Xiangyu Cao,Fan Yang,Jun Gao,Shenheng Xu,Maokun Li,Xibi Chen,Yi Zhao,Yuejun Zheng,Sijia Li +9 more
TL;DR: Diverse electromagnetic responses of a programmable metasurface with a relatively large scale have been investigated, where multiple functionalities are obtained on the same surface and various EM phenomena including anomalous reflection, diffusion, beam steering and beam forming are successfully demonstrated.