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Energy Harvesting Through Lumped Elements Located on Metamaterial Absorber Particles

Gunduz, Ozan T.
Sabah, Cumali
We propose and examine an enhanced version of a multi-band metamaterial absorber for an energy harvesting application. The numerical results of the multi-band absorption characteristics of no-load conditions are presented and compared with the loading conditions. At most % 50 of the incoming wave energy whose correspondence is 0.25 Watt is converted to real power at the resistive loads at 5.88 GHz by the usage of 2000 ohms loads. In order to evaluate the harvesting efficiency, three different types of efficiency definitions are presented and calculated.