Researchers

Uichan Park

Ph.D. Candidate

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

Building 132 Room 311

marine522@snu.ac.kr

Research Interest

Digital pre-distortion of power amplifier, RF/mmWave/Microwave Integrated Circuit, Metasurface, and Antenna system architecture

Research Experiences

  • Development of a Reflector for the Compact Antenna Test Range (CATR) Anechoic Chamber - Aplustech (2020.09~2021.02)
  • Development of lightweight radar and signal processing technology for unmanned aerial vehicle – Institute for Information & communication Technology Planning & evaluation (IITP) (2021.03~2023.12)
  • Development of MMU-based Passive/Active Metasurface Design Technology - Samsung GTC (2021.06~2021.12)
  • Tx performance improvement through NR FR2 DPD application – Samsung LSI (2022.03~2024.02)
  • Development of Dual-Band/Broadband High-Efficiency Power Amplifier MMIC for 5G Applications - Samsung LSI (2021.09~2023.09)

  • Development of Multi-Channel RF FEM Integrated MIMO System Technology for 6G Mobile Communications - Samsung LSI (2023.09~2025.09)

  • Development of an AI Model for EMI NF to FF Conversion - Samsung (2023.10~2024.09)

  • A Study on AI Models for Predicting Electromagnetic Wave Performance - Samsung (2024.11~2025.08)
  • Efficient design of RF components and systems based on artificial intelligence - Institute for Information & communication Technology Planning & evaluation (IITP) (2024.04~)
  • AI-Based Hardware Design (Inverse Design) Solution - Samsung (2025.06~)
  • Design and Performance Verification of a FR3 6GHz Band Full-Duplex Joint Radar-Communication RFIC System Based on Probabilistic Reverse Engineering AI Model Establishment - Samsung LSI (2025.10~)
  • Realizing Ultra-Dense 6G MIMO: Probabilistic-Inverse Design AI-Model Based Integrated Antenna-DPD System and Its Validation - Samsung (2025.12~)

Publication

International Journals

  • U. Park, T. Yoon, and J. Oh, “A Compact Active Bi-directional Phase Shifter Employing a Highly Isolated Single Gilbert-Cell”, IEEE Microwave and Wireless Components Letters, Early Access. (APMC Special Issue
  • T. Yoon, U. Park, M. Kim, S. Lee, Y. Lee, S. Nam, and J. Oh, "A Topology-based Array Compensation Empowered by Equivalent Current Modeling of TM10 Patch Antennas for Cross-Polarization Reduction", IEEE Open Journal of Antennas and Propagation, Early Access.
  • J. Kim, U. Park, H. Lee, K. Yoo, and J. Oh, “Compact MIMO Antenna OTA Measurement System with Utilization of Metasurface for Wavefront Manipulator”, IEEE Transactions on Instrumentation and Measurement, Early Access.
  • U. Park, S. Hwangbo, J. Kim, T. Yoon, and J. Oh, “A Novel Switch-Less Active Bi-Directional Phase Shifter With In–Out Impedance Equalization via Staggered Structure for Ku-Band Applications”, IEEE Transactions on Microwave Theory and Techniques, May. 2025. (Top Accessed, 2025. May.)
  • U. Park, J. Kim, T. Yoon, H. Lee, K. Yoo, and J. Oh, “A Low-Profile High-Efficiency Transmitarray Antenna Reflecting Effective Phase Discontinuity With TE/TM Superimpose Analysis”, IEEE Transactions on Antennas and PropagationDec. 2024.
  • T. Yoon, U. Park, and J. Oh, “Band-Stop Behavior Vertically Extended Ground Isolator Based on Transmission Line Theory for IBFD TRx Decoupling Applications”, IEEE Transactions on Microwave Theory and Techniques, Aug. 2023.

International Conferences

  • U. Park, T. Yoon, and J. Oh, "A Compact Active Bi-directional Phase Shifter Employing a Highly Isolated Single Gilbert-Cell", 2025 Asia-Pacific Microwave Conference (APMC), IEEE, 2025
  • U. Park, and J. Oh, "Reference Phase Adjustment Technique with Cross-Polarization Cancellation for Enhanced Digital Predistortion in Mobile Dual-Polarized Arrays", 2025 International Microwave Symposium (IMS), IEEE, 2025
  • T. Yoon, U. Park, and J. Oh, "Unlocking Operation Principle of Corner Truncated Antenna Enabling to Squeeze-out Axial Ratio Bandwidth with Thick Substrate Effect.", 2024 International Symposium on Antennas and Propagation (ISAP), IEEE, 2024
  • U. Park, S. Hwangbo, J. Kim, T. Yoonand J. Oh, "Design of Ku-Band Bi-directional Active Phase Shifter Enabling a Low RMS Error Utilizing Switch-less Staggered Core with the Identical In-out Matching", 2024 International Microwave Symposium (IMS), IEEE, 2024
  • U. Park, and J. Oh, “A New Class of Method With TE/TM Wave Decomposition and Superposition Enabling High-Efficiency Transmitarray Antenna”, 2023 International Symposium on Antennas and Propagation (ISAP), IEEE, 2023. (Best Student Paper) (1st place)

Domestic Conferences

  • Uichan Park, T. Yoon, and J. Oh, "고도로 격리된 역방향 길버트 셀 구조를 활용한 고정밀, 초소형 양방향 능동형 위상 천위기", 2025 Summer KIEES, Aug. 2025.
  • Uichan Park, S. Hwangbo, J. Kim, T. Yoonand J. Oh, "A Novel Active Bi-directional Phase Shifter Empowering a Low RMS Error with Switch-less Staggered Core for Identical In-out Matching", 2024 Summer KIEES, Aug. 2024.
  • Uichan Park and Jungsuek Oh, "교차 쌍대의 증폭 구조를 활용한 소형화된 Upper mid 대역 이득 가변 가능한 능동형 양방향 위상천이기", 2024 winter KCS, Jan. 2024.
  • Uichan Park and Jungsuek Oh, “High-Efficiency Transmitarray Antenna Realized by a Novel Resynthesis of TE _TM Radiation Mode”, 2023 Summer KIEES, Aug. 2023.
  • Uichan Park and Jungsuek Oh, “A Millimeter-Wave Reflection-Type Phase Shifter With Negative Impedance Converter Based Impedance Transforming Balun for 360° Phase Shifting”, 2022 Summer KIEES, Aug. 2022.
  • Uichan Park and Jungsuek Oh, “A Low-Profile Frequency Selective Surface With Novel Unit Cell Arrangement for Massive MIMO Unit Using ±45° Slant Polarization”, 2022 Winter KIEES, Feb. 2022.
  • Uichan Park and Jungsuek Oh, “An Ultra Wideband LNA Using Shunt Resistive Feedback and Series Inductive Peaking in 28nm CMOS FD SOI”, 2021 Summer KIEES, Aug. 2021.

Honors and Awards

  • Korea Institute of Electromagnetic Engineering and Science (KIEES), Best Paper Award (Aug. 2025)
  • International Symposium on Antennas and Propagation, (Best Student Paper) (1st place), (Nov, 2023)
  • Merit-Based Scholarship from Sungkyunkwan University (2015, 2018)

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