Design of a Wireless Power Transmission System Using Antenna Arrays

This paper proposes a wireless power transfer (WPT) system using antenna arrays. The transmitting antenna array contains 16×16 patch antennas. The receiving antenna array consists of 16 antenna subarrays. Several Rectifiers are designed to convert the RF power into DC power. Single-diode topology is applied in the rectifier design. Each receiving subarray is connected to a rectifier. In the way, the outputs of sixteen rectifiers are combined. The transmitting antenna array and receiving antenna subarrays are fabricated and measured. The measurement results show that the WPT system works well, which validates the effectiveness of the proposed design.