Electromagnetic Metasurfaces: A Review

Abstract

Metasurfaces, engineered materials that can manipulate electromagnetic waves, have garnered significant attention due to their versatile applications, particularly in wireless communications and energy harvesting. This review examines recent advancements in metasurfaces, with a specific focus on their application in Intelligent Reflecting Surfaces (IRS) and energy harvesting systems. Split Ring Resonators (SRRs) have been widely used as meta-atoms due to their ability to exhibit negative permeability and permittivity at specific resonance frequencies. This paper discusses the design, performance, and challenges associated with these metasurfaces and how they contribute to the development of advanced wireless systems and sustainable energy solutions. We also explore the potential of metasurfaces in addressing the challenges posed by energy-hungry wireless devices and the need for efficient energy harvesting techniques.