Design of Hybrid Wireless Power Transfer and Dual Ultrahigh-Frequency Antenna System

This paper is presenting a hybrid system including a high frequency (HF) coil and a dual Ultra High-Frequency (UHF) antenna for Wireless Power Transfer (WPT) applications. The coils' operating frequencies are 510 MHz, and the antennas work at 2.48 GHz and 4.66 GHz. The system was designed and fabricated on FR4 substrates. The antennas can be used for power transfer or communication. One of the current challenges for wireless power transfer for small sensors is to minimize the system size. By proposing small size antennas that are integrated with the coils we are aiming to address this issue.