Wanzhao Cui, Professor of the China Academy of Space Technology, Xi’an. His current research interests include microwave technology, and satellite communication. Yun Li, Senior Engineer of the China Academy of Space Technology, Xi’an. He is an expert in the field of aerospace microwave technology, co-authored over 40 papers, and is the inventor of over 35 licensed patents. Hongtai Zhang, President of the China Academy of Space Technology, and he is a full member of The International Academy of Astronautics (IAA) and academician of Russian Academy of Cosmonautics. Jing Yang, Engineer of the China Academy of Space Technology, Xi’an. She is engaged in multipactor and secondary electron emission research.