Kai Han (Member, IEEE) received the Ph.D. degree in communication and information systems from the University of Chinese Academy of Sciences and Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai, China, in 2025, and received the B.S. degree in electronics and information engineering from Anhui University, Hefei, China, in 2020. In addition, he once studied as a visiting Ph.D. student at the Singapore University of Technology and Design from February 2024 to January 2025, with funding from the China Scholarship Council. He is currently a lecturer at the School of Low-Altitude Technology and Engineering and the School of Electronics and Information Engineering, Anhui University. His research interests include space-air-ground integrated network, LEO satellite Internet, emergency communications, low-altitude security, topology design, routing optimization, airspace resource management, and UAV path planning.