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Millimeter Wave Power Amplifiers in Silicon: State of the Art and Future Technology Trend Presented by Hua Wang

11AM - 12:30PM
Webinar - Online
Kelsey Rodriguez –

Abstract: There is a rapidly growing need for high-performance mm-Wave power amplifiers to address mm-Wave 5G and Beyond 5G communication and numerous mission-critical multi-functional DoD applications. These next-generation mm-Wave PAs are often expected to deliver nearly “perfect” performance. They should offer large output power to ensure sufficient link budget, broad bandwidth to support multi-standard communication or frequency reconfigurability/agility, high peak and back-off efficiency for energy saving, and also inherent linearity for Gbit/s complex modulations with minimum or even no digital pre-distortions (DPD). Compared to compound devices, silicon devices often exhibit inferior device-level performance, including power density, gain, efficiency, linearity, and reliability. However, besides their unparalleled fit for system-level integration, silicon technologies offer matured modeling, flexible metal options, and extensive digital control, making them an extremely versatile and attractive platform for design innovations. In this talk, we will review the state of the art of silicon mm-Wave PAs and compare them to recent compound semiconductor PAs. We will then present several recently reported silicon mm-Wave PA design examples that essentially leverage architectural and circuit level innovations to overcome silicon device limitations and radically advance the state of the art.

Biography: Hua Wang (M’05‒SM’15) is an associate professor at the School of Electrical and Computer Engineering (ECE) at Georgia Institute of Technology and the director of Georgia Tech Electronics and Micro-System (GEMS) lab. Prior to that, he worked at Intel Corporation and Skyworks Solutions on mm-Wave integrated circuits and RF front-end modules. He received his M.S. and Ph.D. degrees in electrical engineering from the California Institute of Technology, Pasadena, in 2007 and 2009, respectively.

Dr. Wang is interested in innovating analog, mixed-signal, RF, and mm-Wave integrated circuits and hybrid systems for wireless communication, sensing, and bioelectronics applications. He has authored or co-authored over 170 peer-reviewed journal and conference papers.

Dr. Wang received the DARPA Director’s Fellowship Award in 2020, the DARPA Young Faculty Award in 2018, the National Science Foundation CAREER Award in 2015, the IEEE MTT-S Outstanding Young Engineer Award in 2017, the Georgia Tech Sigma Xi Young Faculty Award in 2016, the Georgia Tech ECE Outstanding Junior Faculty Member Award in 2015, and the Lockheed Dean’s Excellence in Teaching Award in 2015. He held the Demetrius T. Paris Professorship from 2014 to 2018. His GEMS research group has won multiple academic awards and best paper awards, including the 2019 Marconi Society Paul Baran Young Scholar, the IEEE RFIC Best Student Paper Awards (1st Place in 2014, 2nd Place in 2016, and 2nd Place in 2018), the IEEE CICC Outstanding Student Paper Awards (2015, 2018, and 2019), the IEEE CICC Best Conference Paper Award (2017), the 2016 IEEE Microwave Magazine Best Paper Award, and the IEEE SENSORS Best Live Demo Award (2nd Place in 2016).

Dr. Wang is a Technical Program Committee (TPC) Member for IEEE ISSCC, RFIC, CICC, and BCICTS conferences. He is a Steering Committee Member for IEEE RFIC and CICC. He is the Conference Chair for CICC 2019 and Conference General Chair for CICC 2020. He is a Distinguished Lecturer (DL) for the IEEE Solid-State Circuits Society (SSCS) for the term of 2018-2019. He serves as the Chair of the Atlanta’s IEEE CAS/SSCS joint chapter that won the IEEE SSCS Outstanding Chapter Award in 2014.