Wanzhao Cui is a PhD supervisor and Chief Professor at the Northwestern Polytechnical University, researcher of the China Academy of Space Technology (CAST), and academic leader of satellite communication at China Aerospace Science and Technology Corporation (CASC). He is also an IEEE senior member. His main research interests include secondary electron emission effects, space microwave technology, and satellite communication technology. Guobao Feng is a Senior Engineer at China Academy of Space Technology and the youth director of Shaanxi Vacuum Society. His main research interest includes theoretical simulation of secondary electron emission and space irradiation effects.