Evaluation of the Transmitting Efficiency of the Wireless Power Transfer in the Water and Undersea

Abstract

In this study, we evaluated undersea wireless power transfer (WPT). The characteristics of the undersea WPT are clarified by experiment. A vector network analyzer which obtains scattering parameters (S-parameters) is used in the experiment. Over 10% transmitting efficiency is obtained over a distance of 300 mm which is four times the transmit and receive coil diameter, when the coils are put in individual waterproof sealed cases undersea.