Ruochen Lu is an assistant professor and a Fellow of Silicon Laboratories Endowed Chair in Electrical Engineering in the Chandra Family Department of Electrical and Computer Engineering at The University of Texas at Austin.

His research develops microelectromechanical systems (MEMS) and thin-film piezoelectric microsystems for signal processing, sensing, and computing from microwave and millimeter-wave frequencies to the sub-THz regime. His group works on acoustic resonators, filters, delay lines, oscillators, and transducers, as well as ultrasound devices and hybrid microsystems that integrate acoustics with electronics, photonics, magnetics, and quantum platforms.

He received the IEEE MTT-S Microwave Award in 2022, the IEEE Ultrasonics Early Career Investigator Award in 2024, the NSF CAREER Award in 2024, and the Junior Faculty Excellence in Teaching Award in 2024 from The University of Texas at Austin. He serves as an associate editor of IEEE Electron Device Letters, the IEEE Journal of Microelectromechanical Systems, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, and the IEEE Journal of Microwaves.

He received the B.E. degree with honors in microelectronics from Tsinghua University, Beijing, China, in 2014, and the Ph.D. degree in electrical engineering from the University of Illinois Urbana-Champaign, Urbana, IL, USA, in 2019.