A metasurface for conversion of electromagnetic radiation to DC
Source abstract
Abstract
We present a metasurface electromagnetic energy harvester based on electrically small resonators. An array of 8× 8 cross resonators was designed to operate at 3GHz. Unlike earlier designs of metasurface harvesters where each resonator was connected to a single rectifier or load, in this work the received power by all resonators is channeled to a single rectifier which in turn channels the DC energy to a single 50Ω resistive load. The critical advantage of the proposed structure is maximizing power density per diode which maximizes the diode turn-on time. We show through simulation and measurements that the proposed metasurface harvester provides Radiation to DC conversion efficiency of more than 40%.
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Research context
OpenAlex topics: Energy Harvesting in Wireless Networks · Antenna Design and Analysis · Metamaterials and Metasurfaces Applications
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Affiliations
University of Waterloo Department of Electrical and Computer Engineering, , Ontario N2L3G1, Canada
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Show source-provided references
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