Time: 14:00–15:00, Apr 17, 2010
Place: Room 401 of the building of school of microelectronics
Title: Digital RF Architectures and Digitally-Assisted RF
Speaker: Prof. R. Bogdan Staszewski (widely acclaimed as the inventor of Digital RF) Delft University of Technology
Abstract
The past several years have successfully brought all-digital techniques to the RF frequency synthesis and RF transmit generation, which could arguably be considered the last strong bastion of the traditionally-analog design approaches. With their high sensitivity and high dynamic range requirements, the RF circuits have long had a good excuse to avoid any possible source of digital switching activity. With the constant scaling of CMOS feature size and the merciless push for integration, the existence of almost free and powerful digital logic could not go unnoticed. Hence, the environment was ripe to transform the RF functions into digital realizations, as well as to apply digital assistance to help with the performance of RF circuits. This presentation revisits the digitization journey of the traditional PLL and TX circuits and reviews their applicability for cellular basestations.
Presenter
R. Bogdan Staszewski received BSEE (summa cum laude), MSEE and PhD from University of Texas at Dallas in 1991, 1992 and 2002, respectively. From 1991 to 1995 he was with Alcatel in Richardson, TX. He joined Texas Instruments in Dallas, TX in 1995. In 1999 he co-started a Digital RF Processor (DRPTM) group with a mission to invent new digitally-intensive approaches to traditional RF functions. Dr. Staszewski has served as a CTO of the DRP group between 2007 and 2009. Since July 2009 he is Associate Professor at Delft University of Technology in the Netherlands. He has co-authored one book, two book chapters, 110 journal and conference publications, and holds 60 issued 40 pending US patents. His research interests include nanoscale CMOS architectures and circuits for frequency synthesizers, transmitters and receivers.