Table 2. Comparison between the Performances of the Proposed Antennas with Some Recently Reported Onesb.
| antenna | substrate | conductor | S11 (dB) | distance (m) | bandwidtha (GHz) | refs |
|---|---|---|---|---|---|---|
| commercial ANT-W63RPC1-MHF4-50 | 215 | 2.400–2.485 | (51) | |||
| planar monopole | paper | Ag | –15 | 2.2–2.7 | (68) | |
| multiband | –25 | 1.7–2.7 | (69) | |||
| dipole | Taconic RF | –45 | 0.940–1.094 | (70) | ||
| rectangular dipole | paper | Ag | –8.9 | 208 | 2.35–2.50 | this work |
| paper/Fe3O4 | –55.8 | 256 | ||||
a
S1 < −11 dB.
b
Supporting Information shows a video that demonstrates the wireless transmission of data/energy over distance.