Multiband rectenna for radio frequency energy harvesting applied to wireless sensor network

Current radio frequency (RF) energy harvesting systems typically operate with only one frequency range within the electromagnetic RF spectrum, which can be explained by the complexity of working with more than one frequency range. However, with the advent of the Internet of Things (IoT) and Wireless Sensor Networks (WSNs), many of the devices designed for this purpose use various communication protocols for routing their signals and data transfer. In this context, this work proposes the development of a rectenna to operate in the ISM 0.915 and 2.4 GHz bands, capable of achieving an energy conversion efficiency of 65% and an output voltage of 1.6 V as a function of an input power of − 1dBm.