Faculty

We are interested in topics related to the waves and beams. From the development of high power millimeter-wave/THz sources to the applications using the THz source, we are investigating novel THz sources based on vacuum electronics. The transformation and transmission of electromagnetic waves in guided structures using metamaterials is also being investigated.

[Curriculum Vitae]

● 2021-Present: Professor, Department of Electrical Engineering, UNIST
● 2010-2021: Assistant/Associate professor, Department of Electrical Engineering & Physics, UNIST
● 2008-2009: Staff, Schlumberger in Houston, TX, USA
● 2007-2008: Post-doc, Brookhaven National Laboratory, NY, USA

[Education]

● 2007: Ph.D in Physics, Massachusetts Institute of Technology (USA)
● 2002: M.S in Physics, POSTECH
● 2002: B.S in Physics, Ewha Womans University

[Research  Keywords and Topics]

● Microfab-vacuum electron devices in millimeter/THz waves
● 6G wireless communications via OAM-MIMO based on E-band double beam vacuum device
● Exotic electromagnetics transmission/propagation
● OAM electromagnetics
● Interaction between electrons and meta-structures
● EM wave based material characterization
● Remote detection of radioactive material based on electromagnetic waves

[Publications (selected)]

● A. Sawant, I.G. Lee, and E.M. Choi* “Amplitude Non-uniformity of Millimeter Wave Vortex Beams Generated by TransmissiveStructures” IEEE Transactions on Antennas and Propagation DOI: 10.1109/TAP.2022.3140520 (2022)
● I. Lee, A. Sawant, and E. M. Choi* “High-Directivity Orbital Angular Momentum Antenna for Millimeter-Wave Wireless Communications” IEEE Transactions on Antennas and Propagation, vol. 69, no. 7, pp. 4189-4194 (2021)
● A Sawant, I. Lee, B.C. Jung, and E.M. Choi* “Ultimate Capacity Analysis of Orbital Angular Momentum Channels” IEEE Wireless Communications, DOI: 10.1109/MWC.001.2000258 (2020)

[Awards/ Honors/ Memberships]

● 2023.01~present: IEEE Antennas and Wireless Propagation Letters Associate Editor
● 2021.01~present: IEEE Transactions on Electron Devices Associate Editor
● 2021.01~present: IEEE Electron Devices Society (EDS) Vacuum Electronics Technical Committee
● 2019~present: Associate Editor in IEEE Transactionson Terahertz Science and Technology
● 2018: Service Merit Medal from Korea Government (대한민국 국가연구개발성과평가근정포장)
● 2018.10: 국가연구개발 100선 최우수성과 선정
● 2016.12: 한국전자파학회 젊은연구자상