TY - EJOUR DO - 10.1088/0031-9155/59/13/3453 AB - In this study, the maximum received power obtainable through wireless power transfer (WPT) by a small receiver (Rx) coil from a relatively large transmitter (Tx) coil is numerically estimated in the frequency range from 100 kHz to 10 MHz based on human body exposure limits. Analytical calculations were first conducted to determine the worst-case coupling between a homogeneous cylindrical phantom with a radius of 0.65 m and a Tx coil positioned 0.1 m away with the radius ranging from 0.25 to 2.5 m. Subsequently, three high-resolution anatomical models were employed to compute the peak induced field intensities with respect to various Tx coil locations and dimensions. Based on the computational results, scaling factors which correlate the cylindrical phantom and anatomical model results were derived. Next, the optimal operating frequency, at which the highest transmitter source power can be utilized without exceeding the exposure limits, is found to be around 2 MHz. Finally, a formulation is proposed to estimate the maximum obtainable power of WPT in a typical room scenario while adhering to the human body exposure compliance mandates. T1 - Theoretical assessment of the maximum obtainable power in wireless power transfer constrained by human body exposure limits in a typical room scenario IS - 13 DA - 2014 AU - Chen, Xi Lin AU - De Santis, Valerio AU - Umenei, Aghuinyue Esai JF - Physics in Medicine and Biology SP - 3453-3464 VL - 59 EP - 3453-3464 PB - Institute of Physics ID - 210469 KW - human body exposure KW - electromagnetic radiation KW - wireless power transfer SN - 0031-9155 ER -