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Unlocking the Power of Reconfigurable Intelligent Surfaces: From Wireless Communication to Energy Efficiency and Beyond
  • Felipe Augusto Pereira de Figueiredo
Felipe Augusto Pereira de Figueiredo

Corresponding Author:[email protected]

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Reconfigurable Intelligent Surfaces (RIS) are a class of metamaterials that have gained significant attention in recent years due to their potential to revolutionize wireless communication, sensing, and imaging technologies. RISs consist of a planar array of closely spaced, subwavelength-sized elements that can manipulate electromagnetic waves in a controllable manner. By reconfiguring the geometry, material properties, or phase of individual elements on the RIS, the surface can be customized to meet specific application requirements.
RISs can potentially improve wireless communication by creating virtual channels, reducing interference, and improving overall quality. They can also enhance the efficiency of energy harvesting systems and improve sensing and imaging technologies by manipulating the propagation and scattering of electromagnetic waves. Additionally, RIS could be used to increase privacy and security by selectively blocking or allowing certain frequencies of electromagnetic waves.
In this article, we provide a brief history of the development of RIS and discuss the design and fabrication of RIS structures. We also explore the potential applications and benefits of RIS technology, including improved wireless communication, enhanced energy efficiency, advanced sensing and imaging, and increased privacy and security. Finally, we highlight some of the current research challenges and future directions for RIS technology. Overall, RISs hold great promise for advancing a wide range of technologies and applications, and we expect to see many exciting developments in this area in the future.