A Transmitter Antenna Array System for Wireless Power Transfer at 5.8GHz

Abstract

Low power Internet of Things (IoT) and wireless charging applications have expedited a rise in Wireless Power Transfer (WPT) technologies. WPT methods can be categorized into two main categories; near-field and far-field. Far-field based techniques that employ electromagnetic (EM) radiation are seeing an increased use in wirelessly charging appliances due to their increased power transfer efficiency (PTE) over long distances. However, to circumvent the general inefficiencies of WPT, a method of range-angle based beamforming technique has been proposed. This paper proposes a Frequency Diverse Array (FDA) based antenna architecture to be incorporated as the front-end of a WPT transmitter. It then explains the simulation results generated through the ANSYS HFSS software and concludes by discussing the hardware based future results.