An evaluation of an ultra-high frequency electromagnetic fields energy and recovery solutions

The unprecedented development of wireless communications has led to a steady increase in the number of electromagnetic field generators. Thus, the environment has reached an unseen network of electromagnetic energy-carrying waves. In this paper, we present the results of a study to estimate the EMF-UHF propagation attenuation from the outside environment to the interior, to see if it is possible to place flat antennas on a glazed surface in order to capture and recover EMF energy. Furthermore, a stand composed of two groups of rectifier antennas whose performance was evaluated under real ambient / external environment conditions has been built. Thus, it was possible to experimentally verify the concepts of energy harvesting and energy scavenging, the capture and recovery of micro-energy produced by the presence of EMF-UHF with low power density in the environment.