Journal
CRYSTALS
Volume 11, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/cryst11091089
Keywords
wi-fi energy harvesting; metasurfaces; 3D printing; fused filament fabrication
Funding
- European Union
- Greek national funds through the Operational Program Competitiveness, Entrepreneurship and Innovation, under the call RESEARCH-CREATE-INNOVATE [T1EDK-02784, T2EDK-02073]
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This paper investigates the capability of three-dimensional printed cut-wire metasurfaces to harvest energy in frequencies around 2.4 GHz. The experimental results demonstrate that these metasurfaces exhibit good energy harvesting behavior in the mentioned frequency band.
The capability of three-dimensional printed cut-wire metasurfaces to harvest energy in frequencies around 2.4 GHz, is studied in this paper. Cut-wire metasurfaces were constructed using the Fused Filament Fabrication technique. In particular, two metasurfaces, consisting of different materials were produced. The first was constructed using Polylactic Acid as starting material. Then, the printed metasurface was covered with a thin layer of conductive silver paint, in order to achieve good electrical conductivity. The other metasurface was built using commercially available, conductive Electrifi. Both metasurfaces exhibit good energy harvesting behavior, in the frequency band near 2.4 GHz. Their harvesting efficiency is found to be almost three times lower than that obtained for conventional PCB-printed cut-wire metasurfaces. Nevertheless, all of the experimental results presented here strongly corroborate that three-dimensional-printed metasurfaces can be potentially used to harvest energy in the 2.4 GHz frequency band.
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