ECE Distinguished Lecture with Professor Mau-Chung Frank Chang
- 4:00 pm on Wednesday, March 7, 2012
- Photonics Center, 8 Saint Mary’s St., Room 211
Millimeter-Wave and Terahertz System-on-a-Chip for Radio, Radar and Imaging Systems
With Professor Mau-Chung Frank Chang, Wintek Professor of Electrical Engineering, University of California, Los Angeles (UCLA)
Faculty Host: Ajay Joshi
Refreshments will be served outside Room 339 at 3:45 p.m.
Abstract: There is an increased interest in recent history to explore mm-Wave and Sub-mm-Wave (Terahertz) systems from 60-1000GHz (i.e. 1 Terahertz) for radio, radar and imagers due to unique quasi-optical characteristics of such wave spectra. In the past, those systems were inserted by using low integration and high power/cost III-V semiconductor technologies, such as GaAs or InP hetero-junction PHEMTs and/or HBTs, which led to expensive and stationary system implementations with very low energy efficiency.
The continuous scaling has made modern CMOS with gate dimensions less than 65-40nm a potential contender with improved device speed (cut-off frequencies ft and fmax >200GHz) and superior system-on-a-chip integration. However, deep-scaled CMOS suffers its own disadvantages from limited linearity/dynamic range, low intrinsic gain, high process variation and excessive substrate loss. In this talk, Professor Chang will discuss various algorithms and techniques developed at UCLA to overcome CMOS technology drawback in order to implement highly integrated and portable radio/radar/imager systems with unprecedented spectra coverage, energy efficiency and cost/size-effectiveness.
About the Speaker: Dr. Frank Chang is currently the Wintek Chair Professor and the Chairman of Electrical Engineering Department, UCLA. Before joining UCLA in 1997, he was the Assistant Director and Department Manager of the High Speed Electronics Laboratory at Rockwell Science Center, Thousand Oaks, California (1983-1997). Throughout his career, his research has primarily focused on the development of high-speed semiconductor devices and integrated circuits for RF and mixed-signal communication, radar, and imaging systems. He was elected to the National Academy of Engineering in 2008 for his development and commercialization of GaAs power amplifiers and high-speed mixed-signal integrated circuits. He is an IEEE Fellow and received the IEEE David Sarnoff Award in 2006 for developing GaAs HBT power amplifiers for modern wireless communication systems (especially cell phones).