세미나
- 2022.05.16
- 761
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