Towards Batteryless Internet of Things (IoT) Sensing Systems: Far-Field Wireless Power Transfer and Harmonic Backscattering

One essential foundation of IoT technology is the development of numerous interrelated IoT sensors distributed extensively in our environment. Conventional batteries/cords-based powering solutions are certainly not an acceptable long-term and sustainable solution, considering the incurred cost, feasibility, and most of all, environmental impact. A promising and “green” powering alternative solution for IoT sensors is recycling omnipresent ambient RF energy, which is actually dissipated in free space if not consumed by end-users immediately. The concept of harnessing wireless energy for powering IoT sensors requiring a higher power supply is also feasible through the dedicated wireless power delivery from specialized power base stations, which can be an effective supplement. To realize RF power scavenging, this talk focuses on two mainstream techniques: far-field wireless power transfer (WPT) and harmonic backscattering. As a preliminary research step and a feasibility study, a survey of ambient RF energy density in the core areas of Montreal is summarized first. Then, design and optimization techniques regarding low-power far-field rectifiers and fully passive harmonic transponders are presented.

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Co-sponsored by: IEEE North Jersey Section

Speaker(s): Prof. Ke wu,

Agenda:
Please click the link for registration for attending the webinar: ([Register now](https://event.on24.com/wcc/r/3933236/640423B6019EC0E09773C0F500FC3044))

Virtual: https://events.vtools.ieee.org/m/342938