This paper presents the design, fabrication and characterization of an electromagnetic MEMS energy harvester with ultra-broad operating bandwidth. The beam stretching induced nonlinear spring stiffness enables the resonance to extend from 65 Hz to 340 Hz and 400 Hz at accelerations of 0.5g and 1.0g, respectively. The ultra-wide bandwidth could benefit the harvester device for more efficient vib...

The development of energy harvesting devices with piezoelectric transducers has been widely studied in the last decade. Most of previous studies considered a resonant cantilever beam with an attached tip mass and focused on the proper modeling of the cantilever device, design and optimization of electric harvesting circuit and nonlinear amplification of resonant vibration amplitude. However, fe...

This work investigates the performance of a laser-powered unmanned aerial vehicle (UAV) based hybrid wireless network consisting UAV-mounted base station (UAV-BS), cellular user, low-power IoT and secondary group multiple devices. Communication among these devices takes place in two different phases. In first phase transmission, UAV-BS fulfills its power requirements by harvesting from distribu...