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Problem Addressed

Microelectromechanical systems (MEMS) energy harvesting from ambient vibrations is a promising solution for increasing the lifetime of autonomous low-power electronic monitoring systems. The usually smaller than a quarter-coin size micro-fabricated mechanical structures driven by ambient vibrations resonates and coverts mechanical energy into usable electrical power through the piezoelectric effect. Current energy harvesting technologies suffer from a small power density and a narrow bandwidth of typical linear resonance-based piezoelectric structures. They also operate at elevated frequencies.