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Split ring resonator unit cell.
Electric field distribution in the plane of the SRR. The SRR on the left is operating at the resonance frequency of 5.8 GHz, while the one on the right is at the frequency of 5.6 GHz. The scale ranges from 10 V/m (dark blue) to 201760 V/m (dark red).
Fabricated SRR with a 2.7 KΩ resistor placed in the gap.
Experimental setup used to measure the voltage induced across a resistor placed at the gap an SRR.
A block diagram for a generic electromagnetic energy harvesting system employing an antenna as the primary collector.
A 9 × 9 SRR array plate.
Numerical simulation setup for electromagnetic energy collection using a horn antennas as the source of radiation and an SRR array as the collector.
Energy harvesting efficiency of the 9 × 9 SRR array for three different incident field angles as described in Fig. 7 .
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