3-D RF-MEMS Devices for Reconfigurable Radio Front-ends

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Monday, May 16, 1065 Kemper Hall, 11:00am-12:00pm

Speaker: Dr. Xiaoguang Liu
Postdoctoral Research Associate, Purdue University

Host: Professor Rick Kiehl

Abstract:

RF Micro-ElectroMechanical Systems (RF-MEMS) has been an emerging technology for revolutionizing future RF designs, promising superior performances, significant size/weight reduction and lower cost. This talk presents recent development in novel three-dimensional RF- MEMS tunable resonators and filters with unprecedented performances in terms of tuning range, quality factor, stability and power handling. The same technology is also applied to the design of tunable low noise amplifiers (LNA), power amplifiers and oscillators. These widely tunable high-Q components will open up new horizons in the design and implementation of future frequency-agile RF, microwave and millimeter-wave systems.

Biography:

Dr. Xiaoguang Liu

Dr. Xiaoguang Liu received the Bachelor's degree in electrical engineering from Zhejiang University, China in 2004, and Ph.D. degree in electrical engineering from Purdue University, West Lafayette, IN. His research interests include the design, fabrication and reliability characterization of Micro-ElectroMechanical Systems (MEMS) for RF and microwave/millimeter-wave systems, 3-D interconnects, and high-Q tunable filters for reconfigurable radio front-ends.

Dr. Liu is the recipient of the 2009 Antenna and Propagation Society Graduate Research Fellowship for his work on high-Q MEMS tunable evanescent-mode cavity resonators and filters for microwave frequencies.