“Bits-to-Waves: Digital RF, mm-Wave and THz Systems to Enable the Next-G”
Friday, April 11 at 1:00pm
MALA 5050
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Abstract
CMOS is ubiquitous for computation, and as such plays an ever increasing role in our lives as we use computation to improve working efficiency. Increasing levels of integration have made it possible to embed analog and RF circuits with digital processing to create RF systems-on-chip. In this talk the switched capacitor PA (SCPAs) is introduced. It leverages CMOS inherent strengths of fast switching and lithographic matching to yield a linear, efficient digital PA. I will present some of the ways that the SCPA can be used to output extremely linear signals at frequencies up to near mm-wave and some of the applications in future communications systems. I will also provide a brief overview of potential future research projects and teaching activities.
Biography
Jeffrey Walling, Ph.D., received the B.S. degree from the University of South Florida, Tampa, in 2000, and the M.S. and Ph. D. degrees from the University of Washington, Seattle, in 2005 and 2008, respectively. He was employed at Motorola, Plantation, FL, working in cellular handset development. He interned for Intel from 2006–2007, working on highly-digital transmitters and CMOS PAs and continued this research while a postdoctoral researcher at the University of Washington. He was an associate professor in the ECE department at University of Utah, where he continued his research on highly-digital TX, high power GaN PAs, power combining techniques and circuits for sensing and biological applications. He is currently an associate professor at Virginia Tech. Walling has authored ~90 journal articles and conference papers and holds five patents with seven pending.
He is the North American Regional Chair for the IEEE ISSCC, he gave a keynote address at IEEE ESSCIRC on Digital Power Amplifiers in 2019, he received the Outstanding Teaching Award at University of Utah in 2015, the HKN Award for Excellence in Teaching in 2012, Best Paper Award at Mobicom 2012, the Yang Award for outstanding graduate research from the EE Department at University of Washington in 2008, an Intel Predoctoral Fellowship in 2007-2008, and the Analog Devices Outstanding Student Designer Award in 2006.