ARS Lab.
The Antenna and RF/Microwave System Laboratory (ARS Lab.) is directed by professor Wang-Sang Lee since 2014.
Our research focuses on RF/Microwave antenna, circuit and system design, RF-based energy harvesting, near-field wireless power transfer and communications systems, ID sensing, monitoring, and positioning for RFID/IoT sensors, and EMI/EMC & EMF. If you're interested in RF/Microwave engineering that ARS lab. conducts, please feel free to contact us.
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2D light show using RF-triggered smart LED sensors & UAVs
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Near-field switched loop antenna array with circular DGS for precise positioning systems
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Rotated stacked Yagi antenna with circular polarization for IoT application
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A Compact module-integrated wireless power transfer system with a square metal plate
Notice
- September 21, 2022 [Seminar] 전파위성분야 연구개발현황 및 미래 기획 방향 (변우진 PM)
- March 18, 2022 [Seminar] WPC(Qi) 국제규격 소개 및 인증시험 분석 (김형준 박사)
- November 22, 2021 [SCIE] "Design of Miniaturized Incident Angle-Insensitive 2.45 GHz RF-Based Energy Harvesting System for IoT Applications"
- August 31, 2020 [Celebration] New Member Joined
- August 10, 2020 [Seminar] 원자력시설 및 주요 안전기기에 관한 EMI/EMC 기준 및전자파잡음 영향평가 (주재율 박사)
PUBLICATION
Journal
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- Design of a Narrow-Beamwidth Reflectarray Antenna for K/Ka-Band Using a Variable Rotation Technique and a Dual-Circularly Polarized Corrugated Horn Feed Mohamed Elhefnawy, Kyoung-Hun Kim, and Wang-Sang Lee, IEEE Access, 3.4, 2025
- Wideband Compact Planar Antenna with Curved Transmission Lines and ACPW Structure Mohamed Elhefnawy, Kyoung-Hun Kim, and Wang-Sang Lee, International Journal of Antennas and Propagation, 1.1, 2025






















