Y. Jay Guo, PhD, is the Director of Global Big Data Technologies Centre and Distinguished Professor at University of Technology Sydney, Australia. He is a Fellow of the Australian Academy of Technology and Engineering (ATSE) and a Fellow of IEEE. He has published over 600 research papers in top tier academic journals and international conferences including over 300 IEEE journal papers. He holds over 26 international patents. He is a co-author of the Wiley titles Ground-Based Wireless Positioning (2009) and Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications (2021).Richard W. Ziolkowski, PhD, is a Distinguished Professor in the Global Big Data Technologies Centre at the University of Technology Sydney. He is also a Professor Emeritus at the University of Arizona. He is an IEEE Life Fellow and a Fellow of OPTICA and the American Physical Society. He was the recipient of the 2019 IEEE Electromagnetics Award (IEEE Technical Field Award) and was the 2014-2015 Fulbright Distinguished Chair in Advanced Science and Technology (sponsored by DSTO, the Australian Defence Science and Technology Organisation). He is a Past President of the IEEE Antennas and Propagation Society (AP-S). He is a co-editor of the Wiley title Metamaterials: Physics and Engineering Explorations (2006) and co-author of Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications (2021).