Subwavelength resonant antennas enhancing electromagnetic energy harvesting

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Samenvatting

In this work, an electromagnetic energy harvester operating at microwave frequencies is designed based on a cut- wire metasurface. This metamaterial is known to contain a quasistatic electric dipole resonator leading to a strong resonant electric response when illuminated by electromagnetic fields.1 Starting from an equivalent electrical circuit, we analytically design the parameters of the system to tune the resonance frequency of the harvester at the desired frequency band. Subsequently, we compare these results with numerical simulations, which have been obtained using finite elements numerical simulations. Finally, we optimize the design by investigating the best arrangement for energy harvesting by coupling in parallel and in series many single layers of cut-wire metasurfaces. We also discuss the implementation of different geometries and sizes of the cut-wire metasurface for achieving different center frequencies and bandwidths.
Originele taal-2English
TitelSPIE Photonics Europe
Plaats van productieBrussels
UitgeverijSPIE
Pagina's988408
Aantal pagina's6
Volume988408
StatusPublished - 8 apr 2016

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