Researchers

Seungwoo Bang

Ph.D. Student

Department of Electrical and Computer Engineering Seoul National University 1 Gwanak-ro, Gwanak-gu, Seoul, Korea

Building 301 Room 814

littlebang97@snu.ac.kr

Research Interest

• Antenna measurement systems and Reconfigurable Intelligent Surface

Research Experiences

  • Holographic Antenna for 6G Base Station – Samsung Research (SR)
  • Mid-band 커버리지 확대를 위한 RIS 기술 개발 – KT
  • CORE: Cognitive Organic Reconfigurable Electronics for sub-THz 6G – Samsung Research (SR)
  • Development of Liquid Crystal Based Millimeter Wave Antenna System for Miniaturization of Weapon Systems – Agency for Defense Development (ADD)
  • Mid-band 커버리지 확대를 위한 RIS 기술 개발 – KT
  • 6G 이동통신을 위한 고차 함수 기반 공간 필터 연구 – Samsung Research (SR)
  • 5G 대역의 O2I 개선을 이한 RIS 시료 개발 및 PoC – KT
  • Low-profile broadband VHF/UHF antennas for military applications – Agency for Defense Development (ADD)

Publication

International Journals

  • S. Bang, H. Kim, and J. Oh, “Enhancing 2-D Beam Scanning Capability through Extended Transmission Paths in a Liquid Crystal-Based Transmitarray Antenna,” in Journal of Electromagnetic Engineering & Science, accepted.
  • ​H. Kim, J. Lee, S. Bang, J. Wang, M.-S. Kim, H.-R. Kim, and J. Oh, “Low Voltage Controlled Fast Switchable Liquid Crystal-Based Reflectarray With Transverse Rubbing Layer,” in IEEE Antennas and Wireless Propagation Letters, 2024.
  • J. Kim, S. Bang, J. Jeong, S.-H. Wi, and J. Oh, “Enhancing Selectivity in 5G/6G Ultra-Narrowband Applications: Plug-and-Play Frequency Selective Surfaces with Field-Manipulating Vias,” in IEEE Transactions on Antennas and Propagation, 2024.
  • S. Bang, T. Yoon, B. Kim, J. Oh, H. Kim, and J. Oh, “Extremely Miniaturized Free-Space Measurement System for RF Metamaterial Composites Based on Beam Focusing Transmitarray,” in IEEE Antennas and Wireless Propagation Letters, 2024.
  • H. Yang, S. Kim, H. Kim, S. Bang, Y. Kim, S. Kim, K. Park, D. Kwon, and J. Oh, "Beyond Limitations of 5G with RIS: Field Trial in a Commercial Network, Recent Advances, and Future Directions," in IEEE Communications Magazine, 2023.
  • H. Kim, S. Oh, S. Bang, H. Yang, B. Kim and J. Oh, "Independently Polarization Manipulable Liquid-Crystal-Based Reflective Metasurface for 5G Reflectarray and Reconfigurable Intelligent Surface," in Transactions on Antennas and Propagation, 2023

International Conferences

  • B. Moon, S. Bang, H. Kim, and J. Oh, "Simultaneously Dual-Polarization Convertible Sub-THz Reconfigurable Intelligent Surface Enabled by Through-Quartz VIAs", 18th European Conference on Antennas and Propagation (EuCAP), Glasgow, Scotland, 2024.
  • H. Yang, H. Kim, S. Bang, Y. Kim, and J. Oh, "Indoor Coverage Enhancement Employing Liquid Crystal-Based Massive Reconfigurable Intelligent Surface Linked to 5G FR2 Base Station", 18th European Conference on Antennas and Propagation (EuCAP), Glasgow, Scotland, 2024.
  • D. Kwon, S. Kim, K. Park, S. Kim, H. Kim, H. Yang, S. Bang, and J. Oh, “Field Evaluation of Reconfigurable Intelligent Surface with Varying Surface Size,” in 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI), Portland, OR, USA, 2023.

Domestic Conferences

  • 방승우, 문병주, 김호겸, 오정석, “A Novel Transmissive Metasurface Design for Expanding Phase Tuning Range: Extending Transmission Paths via Polarization Converter,” 2024 Winter KIEES, Feb. 2024.
  • 문병주, 방승우, 오정석, “Liquid Crystal-Based Reconfigurable Intelligent Surface for Sub-THz 6G Communications With Simultaneous and Dual Polarization Convertibility,” 2024 Winter KIEES, Feb. 2024.
  • 방승우, 윤태영, 김병진, 오재철, 오정석, “주파수 선택적 표면 측정을 위한 근거리 장 빔 포커싱 트랜스밋어레이 기반 초소형 OTA 측정 시스템,” 2023 Summer KIEES, Aug. 2023. (Best Paper Award) (1st place)
  • 양현준, 방승우, 김호겸, 오정석, “세계 최초 RIS 기반 5G FR2 대역 QoS 측정을 위한 전파 모델링 예측 및 필드 테스트,” 2023 Summer KIEES, Aug. 2023.
  • 김호겸, 이재원, 방승우, 왕쥔카이, 김학린, 오정석, “Active Holographic Reflectarray Antenna With Accelerated Dynamic Switching Time: Beyond Theoretical Limitation,” 2023 Summer KIEES, Aug. 2023.
  • 김성현, 권도일, 김병관, 박규진, 양현준, 방승우, 김호겸, 오정석, “RIS를 활용한 5G 무선망 커버리지 확대 기술,” 2023 Summer KIEES, Aug. 2023.
  • 방승우, 김호겸, 오정석, “A Liquid-Crystal-Embedded Transmitarray Design Based on Antenna-Filter-Antenna Arrays for Wide Phase Tuning Range,” 2023 Winter KIEES, Feb. 2023.
  • 방승우 and 오정석, “1-bit D-band Transmitarray Unit Cell Design Based on Polarization Rotating Phase Shifters,” 2022 Summer KIEES, Aug. 2022.
  • 방승우, 정재영, “IoV 통신을 위한 저자세, 다중대역, 전방향성 패치 안테나 설계 및 캠퍼스 내 필드테스트,” 2022 Winter KIEES, Feb. (Best Paper Award)
  • 이조은, 방승우, 정재영, “자율주행차량용 저자세(low-profile) 안테나 설계,” CICS’21 정보 및 제어 학술대회, Oct. 2021.
  • 방승우, 김유경, 이조은, 최지현, 황준상, 정재영, “다층 PCB 구조를 이용한 저자세, 다중대역, 전방향성 방사 패치 안테나 설계”, 2021 Summer KIEES, Aug. 2021.
  • 방승우, 김유경, 최지현, 황준상, 정재영, “높이 0.04파장 이하, 대역폭 25% 이상 저자세, 광대역, 전방향성 방사 패치 안테나 설계,” 2021 Winter KIEES, Feb. 2021.
  • 방승우, 정재영, “필드테스트용 In-House 데이터 전송률 측정기기 구현 및 캠퍼스 내 무선통신 질 측정,” 2020 Autumn KIEES, Nov.

Patents

  • 필테나 기반 이중 편파 공간 필터 구조 (출원번호: 10-2023-0143199)

Honors and Awards

  • 제22회 전파분야 대학(원)생 논문공모 우수상 (한국방송통신진흥원장상)
  • Korea Institute of Electromagnetic Engineering and Science (KIEES), Best Paper Award (Aug. 2023)(1st place)
  • 제 8회 전자파학회 전자파측정 논문경진대회, 최우수상, 우수상 (Mar. 2023)
  • Korea Institute of Electromagnetic Engineering and Science (KIEES), Best Undergraduate Paper Award (Feb. 2022)
  • Seoultech, Best Graduate Award (rank: 2/105) (Feb.2022)
  • Seoultech, Best Project Award in the graduation exhibition (Jan. 2022)
  • Korea Student Aid Foundation (KOSAF), National Science & Technology Scholarship (Mar.2020)
  • Electric Contractors' Financial Cooperative (ECFC), Student Scholarship (Feb.2020)

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