Digital RF Transmitters Video

Abstract - Direct digital-to-RF conversion at the antenna interface offers many exciting opportunities to push the performance envelope of RF transmitters in efficiency, area, signal bandwidth, and modulation quality. This tutorial will provide a complete overview of digital transmitter architectures, starting from digital bits at the symbol rate all the way to the antenna. We will start at the heart of this architecture, with a review of state-of-the-art, high-efficiency, digital PA topologies. Then we will discuss all auxiliary circuits and digital signal-processing tricks needed around the PA core to enable the transmitter to meet strict signal fidelity and spectrum cleanliness requirement while to simultaneously provide the PA core with the optimal environment for highest efficiency. Topics for discussion include: digital sample-rate conversion, 1-D and 2-D digital pre-distortion for wideband signals, and peculiarities of signal processing in the polar domain.
Bio - Renaldi Winoto received his Bachelors degree from Cornell University in 2003 and his Ph.D. degree from University of California, Berkeley in 2009. He was with Marvell Semiconductors from 2009 to 2017 where he worked as an Engineering Director and led a group responsible for definitions of RF transceiver architectures and designs of RF power amplifiers for Wireless LAN. In 2017, he joined Tectus Corporation, a stealth-mode start-up. He is a member of the technical program committee for RFIC and ISSCC. His research interest is in mixed-signal and radio-frequency circuits for wireless communication systems.