Bilal A. Khawaja, received the B.S degree in computer engineering from Sir Syed University of Engineering and Technology, Karachi, Pakistan, in 2002, the M.Sc. degree in communication engineering and signal processing from the University of Plymouth, Plymouth, U.K., in 2005, and the Ph.D. degree in Electrical Engineering from the University of Bristol, Bristol, U.K. in 2010. From 2010 to 2016, he was working as an Assistant Professor in the Electronics and Power Engineering Department, PN-Engineering College, National University of Science and Technology (NUST), Karachi, Pakistan. In 2015, he was a Visiting Post-Doctoral Researcher with the Lightwave Systems Research Laboratory, Queens University, Kingston, Canada, involved in the Natural Sciences and Engineering Research Council (NSERC) - Canada CREATE Next Generation Optical Network (NGON) project on the characterization and measurements of 25GHz RF signal generation optical comb sources. Currently, he is an Associate Professor with the Department of Electrical Engineering, Faculty of Engineering, Islamic University of Madina, Saudi Arabia. He has authored and co-authored several journals and IEEE publications. His current research interests include Antennas/Antenna array design for 5G and IoT systems, metamaterials and metasurfaces, next-generation wireless systems, and RF and microwave systems.