Abstract
The mmWave and sub-THz spectrum (30–300 GHz) offers unprecedented opportunities for next-generation wireless communications and sensing. However, fully exploiting these frequencies remains challenging due to high path loss and the inherent limitations of silicon transistors. This talk highlights our recent innovations in mmWave-to-sub-THz RF signal processing in silicon, including calibration-free 140 GHz and 240 GHz phase shifters, compact high-power 140 GHz bi-directional amplifier for large-scale beamformers, and phased-array-inspired RF signal processors for ultrabroadband (>30 GHz) spectrum sensing.
Brief Bio
Wooram Lee is an Associate Professor of Electrical Engineering at Penn State University. He received his B.Sc. and M.S. degrees from KAIST and his Ph.D. from Cornell University. From 2012 to 2015, he worked at Broadcom on multi-Gbps transceivers, and from 2015 to 2020, he was at IBM T. J. Watson Research Center focusing on high-performance mmWave phased array circuits. Prof. Lee’s work has been recognized with the IEEE RFIC Best Student Paper Award (2023, as faculty advisor), the IEEE RFIC Best Industry Paper Award (2019), and the IEEE Radar Conference Best Paper Award (2009). He currently serves as an Associate Editor for the IEEE Transactions on Microwave Theory and Techniques, a Guest Editor for the IEEE Journal of Solid-State Circuits, and is a member of the Technical Program Committee of the IEEE Radio-Frequency Integrated Circuits (RFIC) Symposium.