Invited Talk: Bian Wu, Xidian University

Special session 10: Advanced Electromagnetic Materials for Millimeter-Wave and THz Applications

Short Bio: 
Bian Wu (Member, IEEE) was born in Xianning, Hubei, China, in 1981. He received the B.S. and Ph.D. degrees in electromagnetic fields and microwave technology from Xidian University, Xi’an, China, in 2004 and 2008, respectively. Since 2008, he was with Xidian University, where he is currently a Professor with the National Key Laboratory of Antennas and Microwave Technology. From March 2013 to February 2014, he was a Post-Doctoral Visitor with the Queen Mary University of London, London, U.K. He has authored or coauthored over 80 journal publications. His research interests include microwave circuits and devices, filtering antennas, metamaterials, and graphene-based devices.

Title:  Graphene-based Beam Steering Antenna

Abstract:
In this paper, two kinds of graphene-based beam steering millimeter wave antennas presented by our group are summarized. Firstly, a pattern reconfigurable antenna consists of a pair of back-to-back modified Vivaldi antennas and a power dividing feed line loaded with graphene nanoplate pads is presented. By varying the resistance of two graphene pads, the radiation pattern of the antenna can be manipulated from two opposite beams to a single beam. In addition, a multi-beam array antenna based on flexible multilayer graphene film (MGF) with high conductivity and small thickness fed by the substrate integrated waveguide butler matrix is realized, which can offer a wider impedance bandwidth and large beam scanning range.