Mingyu Lu of CH10799 - Beijing Section Chapter,AP03/MTT17 - Chongqing

A phased array is composed of an array of antenna elements that are excited individually. Via tuning the phase profile and amplitude profile of the excitations, a phased array is capable of generating a narrow electromagnetic beam and steering the beam without any mechanical adjustments. Phased arrays have widespread applications in wireless communication and radar. The phased array technique may also be employed to transmit power (in contrast to information/signal) wirelessly over long distances (on the order of meters, ten meters, or longer). Nevertheless, employing phased arrays for wireless power transmission encounters various technical challenges that are typically not present in wireless communication or radar applications. As one of the primary challenges, the well-established far-zone condition is usually not satisfied when a phased array is employed as a wireless power transmitter. This presentation intends to comprehensively address the technical complications associated with the near-zone condition when the phased array technique is applied for wireless power transmission. Specifically, a closed-form formulation is derived to estimate the electromagnetic radiation as well as the power transmission efficiency when a phased array is employed to transmit wireless power under the condition of near-zone (rather than far-zone).

Biography:

Mingyu Lu received the B.S. and M.S. degrees in electrical engineering from Tsinghua University, Beijing, China, in 1995 and 1997 respectively, and the Ph.D. degree in electrical engineering from the University of Illinois at Urbana-Champaign in 2002. From 2002 to 2005, he was a postdoctoral research associate at the Electromagnetics Laboratory, University of Illinois at Urbana-Champaign. He was an assistant professor with the Department of Electrical Engineering, University of Texas at Arlington from 2005 to 2012. He joined the Department of Electrical and Computer Engineering, West Virginia University Institute of Technology in 2012 and he is currently a professor. His research interest includes wireless power transmission, Internet of Things, radar systems, antenna design, and computational electromagnetics. He was the recipient of the first prize award in the student paper competition of the IEEE International Antennas and Propagation Symposium, Boston, MA in 2001. He served as the chair of Antennas and Propagation Chapter of IEEE Fort Worth Section from 2006 to 2011. He is currently serving as the treasurer of IEEE West Virginia Section.