ABSTRACT
A trend toward a world in which people will be surrounded by networked devices that are sensitive and adaptive to their needs has been witnessed. The Watt nodes and the milli-Watt nodes demand a further improvement in technology scaling to meet the low-power target. Several scavenging techniques have been studied in the recent years. One of the most common scavenging techniques is to harvest energy from a radio frequency signal. Increasing demands in wireless systems for sensing and monitoring applications have culminated in a high demand for low-power autonomous devices. To demonstrate the feasibility of the digital predistortion concept, an frequency-hopping spread spectrum transmitter has been realized in silicon-on-anything technology. Receiver sensitivity depends on the noise figure, noise bandwidth, and the required signal-to-noise ratio of the demodulator. Different universities are involved in pioneering research on ultra-low-power devices and networks.
