Fei Cheng received the B.S. degree from Xidian University, Xi’an, China, in 2009, and the Ph.D. degree from the University of Electronics Science and Technology of China, Chengdu, China, in 2015. From 2013 to 2015, he was a Visiting Ph.D. Student with the University of Birmingham, Birmingham, U.K. From 2015 to 2017, he was with Chengdu Jiuzou Dfine Technology Company Ltd., Chengdu, as a Microwave Engineer. Since July 2017, he joined Sichuan University, Chengdu, as an Assistant Professor, where he is currently an Associate Professor. In August 2023, he was a Visiting Scholar with Queen’s University, Belfast, U.K. His research interests include microwave components such as filter, antenna, and rectifier.