Yongle Wu, received the B. Eng. degree in communication engineering and the Ph. D degree in electronic engineering from Beijing University of Posts and Telecommunications (BUPT), Beijing, China, in 2006 and 2011, respectively. From April to October in 2010, he was a Research Assistant at the City University of Hong Kong, Kowloon, Hong Kong. In 2011, he joined the BUPT and becomes currently a Full Professor in the School of Electronic Engineering. His research interests include microwave components and wireless systems design. The corresponding author, email: ywu@bupt.edu.cn. Lingxiao Jiao, received tile B.S. degree in Electronic Science and Technology from Beijing University of Posts and Telecommunications (BUPT), Beijing, China, in 2014. In September 2014, he started his research as a graduate at BUPT and is currently working toward the Ph.D. degree at the same university. His research interests include microwave passive components, power amplifiers and RF systems. Zheng Zhuong, received the B.S. degree in Electronic Science and Technology from Beijing University of Chemical Technology (BUCT), Beijing, China, in 2015. In September 2015, he started his research as a graduate at Beijing University of Posts and Telecommunications (BUPT) and is currently working toward the MS. degree at BUPT. His research interests include microwave passive components and power amplifiers. Yuanan Liu, received the B.E., M.Eng., and Ph.D. degrees in electrical engineering from University of Electronic Science and Technology of China, Chengdu, China, in 1984, 1989 and 1992, respectively. In 1984, he joined the 26th institute of Electronic Ministry of China to develop the in- ertia navigating system. In 1992, he began his first post-doctor position in EMC lab of Beijing University of Posts and Telecommunications (BUPT), Beijing, China. In 1995, he started his second post-doctor in broadband mobile lab of Department of System and Computer Engineering, Carleton University, Ottawa, Canada. From July, 1997, as prof