High-Frequency Limits of Wireless and Wireline Circuits in Silicon Processes
When: Monday, October 3, 2011 (4:00pm - 4:50pm)
Where: KEC 1001
Speaker Name: Dr. James Buckwalter
Speaker Title/Description:
Assistant Professor
Electrical and Computer Engineering
University of California, San Diego
Speaker Biography:
Prof. James Buckwalter supervises the high-speed integrated circuits laboratory at the University of California \u2013 San Diego. His research interests are RF and millimeter-wave chip design for wireless applications and opto-electronic interface circuitry. His research has been recognized with the DARPA Young Faculty Award in 2007 and NSF Career Award in 2011.
This talk will describe how advanced CMOS processes are changing the landscape
of wireless and optical communication technologies. Emerging millimeter-wave
applications require antenna arrays with RF front-ends that need additional
functionality without sacrificing power efficiency. Our group has recently
reported several novel circuit techniques including constructive wave
amplifiers to realize bidirectional millimeter-wave front-ends and efficient
power amplifiers in 45-nm Silicon-on-Insulator (SOI) CMOS.
Additionally, high-speed (>10 Gb/s) silicon photonic circuitry for chip-to-chip
communication will be discussed. New optical wireline systems are proposed
through the development of photonic devices compatible with standard silicon
processes. Our research group is investigating channel coding for silicon
microring resonators in 130-nm SOI CMOS and approaches to reduce power consumption
of 40-Gb/s circuitry in 45-nm SOI CMOS.
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