RF Energy Harvester Integrated Self-Powered Wearable Respiratory Monitoring System

Recent advancements in energy harvesting technologies have made them potential candidates for development of self-powered biomedical systems. Integration of energy harvesters with wearable and implantable biomedical sensors could open new horizons of medical diagnosis and treatment of chronic diseases such as sleep apnea. Continuous monitoring is crucial in order to measure and analyze the breathing signal to detect sleep apnea. In this paper, an RF energy harvester powered wearable respiratory monitoring system is presented. The proposed system is implemented using low-power circuit design techniques and thus possesses the capability to be powered by RF energy harvesters. The fabricated energy harvester device realized in 130 nm CMOS process is very compact and therefore can be used in a wearable respiratory monitoring system for neonatal infants suffering from sleep apnea.