Dr. Guoxiang Shu is an associate professor at the College of Electronic and Information Engineering, Shenzhen University, China. His current research interests include sheet electron beam TWTs, BWOs and EIOs, pseudospark-sourced electron beam devices, millimeter-wave dielectric measurement, and millimeter-wave and terahertz passive devices (couplers, mode convertors, resonators, filters, and antennas, etc.). If you are interested in Postdoc positions please send your CV to gxshu@szu.edu.cn