En circuit voltage OC vs. f, for the Electrifi MS unit. The experimental configuration is shown within the sketch; (b) EMI response with the Electrifi MS unit, with diode attached for the MS gap; is shown inside the sketch; (b) EMI response of your Electrifi MS unit, with diode attached to the MS gap; (c) VOC as a Cathepsin L2 Protein site function in the horn output energy. (c) V OC as a function with the horn output energy.Figure 9a shows the output voltage as a a function of resistance load. OUT increases Figure 9a shows the output voltage as function of resistance load. V increases using the increasing R, and reaches the open circuit worth VOC for resistance larger than with all the escalating R, and reaches the open circuit value for resistance higher than 50 KOhm. Nonetheless, the maximum energy output is obtained for R 400 Ohm, as 50 KOhm. Nonetheless, the maximum energy output is obtained for R 400 Ohm, as shown in Figure 9b, inset. The maximum power worth is 2 mW and corresponds to an shown in Figure 9b, inset. The maximum power value is two mW and corresponds to an efficiency of 7 (principal panel, Figure 9b). The efficiency determined for the Electrifi MS efficiency of 7 (main panel, Figure 9b). The efficiency determined for the Electrifi MS unit equals that obtained for the Ag/PLA MS, suggesting their equal (qualitative and unit equals that obtained for the Ag/PLA MS, suggesting their equal (qualitative and quantitative) overall performance. quantitative) overall performance.Crystals 2021, 11, 1089 Crystals 2021, 11, x FOR PEER REVIEW1313 of 15 ofFigure 9. (a)(a) Output voltage vs. resistance load, for the Electrifi MS, yellow inset: VOUT as function as a a function Figure 9. Output voltage vs. resistance load, for the Electrifi MS, yellow inset: of of frequency for the chosen resistance loads; (b) MS harvesting efficiency as function ofof resistance frequency for the selected resistance loads; (b) MS harvesting efficiency as a a function resistance load. A clear maximum is obtained for R 400 400 Ohm, inset: inset: as a function of R. Regional maxload. A clear maximum is obtained for R Ohm, blue blue POUT as a function of R. Nearby imum appears for R 400 Ohm. maximum seems for R 400 Ohm.four. 4. Summary Summary InIn the existing study, cutwire metasurface units had been constructed employing the the present study, cutwire metasurface units have been constructed employing the Fused Filament Fabrication 3Dprinting process. The MSs constructed hereby had been EIF4EBP1 Protein E. coli tested Fused Filament Fabrication 3Dprinting strategy. The MSs constructed hereby were tested regarding their efficiency microwave power harvesting in the 2.four GHz frequency band. regarding their efficiency inin microwave power harvesting in the 2.four GHz frequency band. Their efficiency was in comparison with a conventionallybuilt Copper MS unit on FR4, Their overall performance was when compared with a conventionallybuilt Copper MS unit on a a FR4, which a a broadly used substrate microwave applications. that is is widely used substrate inin microwave applications. InIn this context, the FR4 built MS was initially investigated. The MS shows resonance this context, the FR4 built MS was initially investigated. The MS shows resonance atat 2.three GHz. The observed EM behavior of the MS has been corroborated by theoretical 2.3 GHz. The observed EM behavior in the MS has been corroborated by theoretical simulation outcomes. simulation benefits. By placing the MS unit in front a a horn antenna, which emits electromagnetic By putting the MS unit in front ofof horn antenna, w.