Metamaterial Absorbers for IoT Applications

Abstract

IoT devices are predicted to become completely ubiquitous in the future. To realise this objective, a new generation of IoT devices that can operate independently must be developed. Several wireless standards have been established to help IoT applications run more efficiently. However, there are open research challenges in the literature regarding IoT device powering, sensor accuracy, and electrical device efficiency. Electromagnetic waves can now be used as a source of energy for sensing and transferring data with the development of metamaterial absorbers (MMA). A detailed application-based research of design concepts and numerous approaches of improving MMA properties has been reviewed in this article. In addition, various applications of MMA such as optical switching, sensing and energy harvesting have been discussed. Finally, MMA implementation in industrial applications is discussed with suggested future research directions.