서강대학교 전자공학과

세미나 제목

CMOS Integrated circuits and systems for affordable terahertz electronics

연사

최우열 교수 (오클라호마주립대 전기컴퓨터공학부)

시간 및 온라인 접속 주소

2022년 5 월 20 일 (금) 오후 4:30, R715 및 온라인

Zoom: https://sogang-ac-kr.zoom.us/j/87624010745?pwd=CBAi2fvOV6vF3ESKekk7bWGFl1OMCr.1

회의 ID: 876 2401 0745, 암호: 89847

세미나 초록

Sub-terahertz and terahertz waves, electromagnetic waves with frequency ranging from 100 GHz to 10 THz, enable unprecedented capabilities thanks to their unique characteristics such as short wavelength, wide available bandwidth, and spectral specificity. Key future applications include high-resolution imaging, high-speed data communication, and gas analysis with absolute specificity through rotational spectroscopy. However, the high cost of the terahertz instrumentation has been limiting its proliferation. If developed, compact and low-cost terahertz electronic systems will accelerate the adoption of terahertz technologies in everyday life. As mainstream silicon integrated circuits technologies offer high-yield fabrication, large-scale integration, and large-volume production capabilities, Si-based terahertz electronics can be one of the key enablers of such systems.

In this seminar, Si CMOS integrated circuits for terahertz applications will be introduced. Following a brief discussion on the tradeoffs and approaches for CMOS terahertz circuit design, details of demonstration circuits will be presented. The demonstrators include 1) 410-GHz reflection-mode imager based on compact concurrent transceiver pixel array, demonstrating 0.6° angular resolution 2) a wideband receiver IC for rotational spectroscopy in 200 – 300 GHz frequency range, achieving 14 dB noise figure and 90 GHz RF bandwidth 3) 300-GHz up-conversion transmitter capable of 30 Gbps QPSK modulation.

연사약력

□ 학력

학부 1997-2001 연세대학교 전기컴퓨터공학부

석사 2001-2003 서울대학교 전기컴퓨터공학부

박사 2003-2011 서울대학교 전기컴퓨터공학부

□ 경력

 2018.08~현재 Oklahoma State University, Assistant Professor

 2013.06-2018.07 The University of Texas at Dallas, Assistant Research Professor

 2011.05-2013.05 The University of Texas at Dallas, Research Associate