What is it about?
Metamaterials are artificially engineered materials composed of subwavelength structures exhibiting unique properties not found in natural materials. In the last two decades, metamaterials have emerged as a new frontier of science involving materials science, engineering, physics, and chemistry. Metasurfaces are the 2D equivalent of metamaterials. In recent years, the tunable, reconfigurable, and programmable metasurfaces concept has been proposed to achieve a higher degree of freedom over electromagnetic waves. To realize smart control of EM waves, intelligent metasurfaces have been developed with self-adaptivity, equipped with sensing and feedback components to control their reprogrammable functions without human intervention.
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Why is it important?
Intelligent metasurfaces have gained significant importance in recent years due to their ability to dynamically manipulate electromagnetic waves. Their multifunctional characteristics have huge potential in numerous novel devices and exciting applications in the microwave, terahertz, and visible regions. Future generations of wireless communications will include several novel applications, such as intelligent transportation systems, virtual reality, holographic projections, and brain-computer interfaces. Reconfigurable intelligent surfaces have been considered suitable techniques for smart and controllable radio environments. Specifically, with the advancement of artificial intelligence, intelligent metasurfaces are considered suitable candidates to realize a smart future.
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This page is a summary of: Recent Progress in Reconfigurable and Intelligent Metasurfaces: A Comprehensive Review of Tuning Mechanisms, Hardware Designs, and Applications, Advanced Science, September 2022, Wiley,
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Reconfigurable and Intelligent Metasurfaces
In article number 2203747 the recent progress of intelligent metasurfaces, focusing on tuning mechanisms, hardware designs, and applications, is presented. Yejun He and co-workers discuss the reconfigurable and programmable metasurfaces, classified as space-gradient, time-modulated, and space-time modulated metasurfaces. In addition, the authors provide an overview of the emerging research direction of reconfigurable intelligent surfaces.
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