Xiaolong Wang received a B.S. in communication engineering from Jilin University, Changchun, China, in 2005, an M.S. from Changchun University of Science and Technology, Changchun, in 2008, and a Ph.D. from the University of Toyama, Toyama, Japan, in 2012. From November 2012 to June 2013, he was a Post-Doctoral Research Associate with the Art, Science and Technology Center for Cooperative Research, Kyushu University, Fukuoka, Japan. From July 2013 to December 2015, he was a Researcher with the Plasma Research Center, University of Tsukuba, Tsukuba, Japan. Since January 2016, he has been an Assistant Professor with the Department of Electronic Engineering, Saitama University, Japan. Now, he is a Professor with the College of Electronic Science and Engineering, Jilin University. His research interests include microwave/millimeter-wave system design, passive component design, and optimization techniques. Dr. Wang is a member of the Institute of Electronics, Information and Communication Engineers (IEICE), Japan. He was the recipient of the IEEE MTT-S Japan Chapter Young Engineer Award in 2013.