Underwater wireless power transfer (UWPT) is an important technique to power underwater
devices while its frequency splitting phenomena are not fully elucidated. In this study …

To increase the efficiency of a wireless power transfer system, a method based on
optimizing the product of coupling coefficient by quality factor (kQ) of the resonators has …

Mutual inductance between finite-length coaxial helical filaments and tape coils are
presented analytically. In this paper, a mathematical model for finite-length coaxial helical …

Frequency characteristics of underwater wireless power transfer systems centered at 470
kHz are investigated experimentally. Experimental results show the V-type frequency …

In this paper, we propose the analysis of dielectric sensitivity of transmitting and receiving
coils in wireless power transmission system. The diameter of the dielectric disk under test is …

A wireless power transmission resonator using a conducting wire with a vertical rectangular
cross-section is disclosed. The wireless power transmission resonator may include a first …

In this paper, we have investigated the relationship between the coupling coefficient ratio
and the wave impedance of the transmitting and receiving coils, which are important in WPT …

Provided are a wireless power transmission device for transmitting power to a wireless
power receiving device and the wireless power receiving device for receiving the power …