Xiao Cai was born in Nanjing, Jiangsu, China, in 1991. He received a B.Eng. degree in electrical engineering and a Ph.D. degree in Meteorological information technology from the Nanjing University of Information Science and Technology, Nanjing, in 2013 and 2020, respectively. Since 2020, he has been a lecturer at the Nanjing University of Information Science and Technology (NUIST), Nanjing, China. His current research interests include optimization methods of antenna arrays, beam forming techniques, and wireless power transfer systems.