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. Author manuscript; available in PMC: 2021 Dec 31.
Published in final edited form as: IEEE Trans Biomed Circuits Syst. 2020 Dec 31;14(6):1241–1252. doi: 10.1109/TBCAS.2020.3037862

Fig. 11.

Fig. 11.

Measurements of ME power transfer efficiencies over various TX-RX distances, in comparison with RF, inductive coupling and ultrasonic power transfer [7], [8], [16], [21], [40].