Advanced Radio-Frequency
Integrated Circuit and System Design Lab.

The ARCS Laboratory — Leading Innovations in High-Speed RF/Analog ICs and Wireless Sensing Systems.

We research RF/Analog Circuits and Systems based on CMOS.
Specifically, we build versatile integrated circuits that push performance and efficiency, spanning Gbps High-Speed Wireless Transceivers, Precise Ranging & Localization Sensors, and AI Radar Systems.

Latest News (2026)
[2026.09] Youngchan (undergraduate researcher) received the Outstanding Paper Award at the 26th RF/Analog Workshop for his paper titled “A 2-Gbps IR-UWB Transmitter Using Hybrid 4-PAM/4-PSK Modulation.” The paper presented high-order modulation techniques for high-speed, energy-efficient wireless transmission. Congrats to Youngchan on this well-deserved recognition!
[2026.08] Siwon has been selected for the 2026 Master's Student Research Grant Program (석사과정 연구장려금). The selected research project is titled “임펄스 기반 다중 배열 수신기를 이용한 고정밀 3차원 위치 추정 시스템 IC 설계”. Through this research grant, Siwon will receive a total of 12 million KRW from September 2026 to August 2027. Congrats!
[2026.08] Our research proposal, "차세대 통신-센싱 융합 환경을 위한 초저전력 3차원 각도·거리 통합추정 임펄스-라디오 UWB 하이브리드 빔포밍 레이다 SoC," has been selected for the Basic Research Program (기본연구) by the National Research Foundation of Korea (NRF, 한국연구재단). The project will run for 60 months, from September 2026 to August 2031. As our research group's first external project, we hope this will serve as a major stepping stone for our future researches.
[2026.02] Youngchan and Sungjae have newly joined our ARCS Lab. They will be working in the lab as interns and plan to pursue their Master’s degrees with us after graduation. We warmly congratulate them on joining the lab and wish them a meaningful and rewarding graduate journey.
Contact or Consulting

전자회로 및 반도체 회로 설계에 관심이 있는 학부 연구생 및 진학에 관심 있는 학생을 모집합니다.

관심이 있으신 학생은 하기 메일로 면담 요청을 해주시기 바랍니다. (아날로그 회로 설계, RF 통신 회로 등)

학과는 정보통신공학과 또는 지능형반도체공학과(협동과정)으로 진학이 가능합니다.

멤버에게는 등록금 및 장학금 지원이 가능합니다.

I am looking for undergraduate research students and prospective graduate students interested in integrated circuit design. If you are interested, please send an email to request a meeting. (Analog Circuit, RF communication circuits, etc.)
You can apply to either the department of information and telecommunication engineering or the department of intelligent semiconductor engineering.
Tuition and scholarship support is available for members.
Please feel free to contact me for any consulting!

Address) 인천광역시 연수구 아카데미로 119, 7호관 정보기술대학 519호
Room 519, Bldg. 7, 119 Academy-ro, Yeonsu-gu, Incheon, Republic of Korea

E-Mail ) ghaenglee@inu.ac.kr

Office) 82-31-835-8283

Lab.) 82-31-835-4199

Principal Investigator

Geunhaeng Lee

Geunhaeng Lee (이근행)

ghaenglee@inu.ac.kr

Assistant Professor
Dept. of Information and Telecommunication Engineering,
Incheon National University

Education
March. 2014 ~ Feb. 2021 Ph.D. in Electrical and Electronic Engineering Yonsei University, Seoul • Combined Master & Ph.D. in Electrical and Electronic Engineering (Advisor: Prof. Tae Wook Kim)
March. 2010 ~ Feb. 2014 B.S. in Electronic and Electrical Engineering Dankook University, Kyung-Ki
Careers
March. 2025 ~ Present Assistant Professor Incheon National University, Incheon, Republic of Korea - Dept. of Information and Telecommunication Engineering
March. 2023 ~ Feb. 2025 Assistant Professor Andong National University, Andong, Kyungpook, Republic of Korea - Dept. of the Electronic Engineering
March. 2021 ~ Feb. 2023 Staff Engineer Samsung Electronics System LSI Business, Hwa-Seong, Republic of Korea - Design Platform Development Team & Connectivity Development Team
- (Former) IP Development Team, Mixed-Signal Circuit Design Team
➢ Experience of the IEEE 802.15.4/4z (UWB) RF Transceiver Design
➢ Design of UWB Tx including transmitter building block such as power amplifier, gain amplifier, mixer, etc.
➢ RF Switch IC Design with wideband and high power handling.
➢ Transformer, Inductor Passive Device Design using EM Simulation
Academic Activities
Brief Bio

Geunhaeng Lee received a B.S. degree in electronic & electrical engineering from Dankook University, Kyung-Ki, Republic of Korea (ROK), in 2014, and a Ph.D. degree in electrical and electronic engineering from Yonsei University, Seoul, ROK, in 2021, respectively.

He was with System LSI Business, Samsung Electronics, Hwaseong, ROK from 2021 to 2023 as a Staff Engineer, where he was involved with design of UWB RF transceiver (IEEE 802.15.4z). From 2023 to 2025, he was with the dept. of Electronic Engineering, Andong National University, Kyungpook, ROK. Since March 2025, he has been with the dept. of Information and Telecommunication Engineering, Incheon National University, Incheon, ROK as an assistant professor.

His research interests are RF amplifiers including PA and LNA, mixed-signal circuits, and circuit & system for wireless communication. He is also interested in research on UWB transceiver systems, mm-wave ICs and digital transmitter.

Dr. Lee received a bronze prize of the circuit design division at the 27th Humantech Paper Award hosted by Samsung Electronics in 2021.

He also serves as a technical reviewer for IEEE SSCL, IEEE TCAS-II, IEEE TBioCAS and IEEE JSSC.

Awards
Feb. 2021 Bronze Prize, 27th Samsung Electronics Humantech Paper Awards Circuit Design Division (hosted by Samsung Electronics) ➢ Paper: A 1.125 Gbps, 28 mW, 2m IR-UWB CMOS Transceiver using Extended – Multi Pulse Position Modulation

Student

We are looking for passionate students. Interested students can contact us anytime !

전자회로 및 반도체 회로 설계에 관심이 있는 학부 연구생 및 진학에 관심 있는 학생을 모집합니다.
관심이 있으신 학생은 하기 메일로 면담 요청을 해주시기 바랍니다. (아날로그 회로 설계, RF 통신 회로 등)
학과는 정보통신공학과 또는 지능형반도체공학과(협동과정)으로 진학이 가능합니다. 멤버에게는 등록금 및 장학금 지원이 가능합니다.

Graduate students including incoming students
Siwon Lee

Siwon Lee

Master's Degree Course (2026-1)

Research Area : Beamforming Impulse Radar Transceiver IC for 3D Space Estimation

siwon7879@naver.com

Sangwoo Lee

Sangwoo Lee

Master's Degree Course (2026-1)

Research Area : Compound RF Building Block Research for Effect of Radiation

wood0330@inu.ac.kr

Undergraduate students
Youngchan Kim

Youngchan Kim

Intern (Master’s Degree admission expected in 2027)

Research Area : Gbps UWB Transceiver Design with Enhance Modulation Scheme

dudcks0731@inu.ac.kr

Sungjae Choi

Sungjae Choi

Intern (Master’s Degree admission expected in 2028)

Research Area : X-Band Compound Semiconductor IC with EM Device

0423csj@inu.ac.kr

Research

Students who are interested or curious about the research can contact me anytime.

I will gladly explain the research in detail and help spark your interest!

Please don't hesitate to reach out and feel free to schedule a meeting. 🙏

아래 연구가 궁금하거나 흥미가 있는 학생들은 언제든 연락주세요.

연구에 대해 자세히 설명드리고 흥미를 가질 수 있게 도와드리겠습니다!

연락하는 것을 두려워 하지 마시고 편하게 면담 신청해주시기 바랍니다. 🙏

Research Overview
Research Overview
1. High-Data-Rate Wireless Communication & Transceiver IC
High-Data-Rate Wireless Communication & Transceiver IC

Abstract

This research focuses on high-speed and energy-efficient IR-UWB wireless transceivers utilizing multi-dimensional modulation techniques. By combining Amplitude (PAM) and Phase (PSK) modulation schemes with a 65 nm CMOS process, the proposed system achieves multi-gigabit data transmission. The architecture also explores frequency-domain modulation extensions (FSK) to improve spectral efficiency for low-power wireless communication systems.

Key Highlights

  • Multi-dimensional modulation combining Hybrid 4-PAM / 4-PSK
  • Achieves up to 2 Gbps data rates at 500 MHz PRF in 7.5–8.5 GHz band
  • Spectrum-efficient IR-UWB transceiver extension using FSK modulation
  • Target Applications: High-speed wireless data transfer, BCI/neural interfaces, humanoids, and distributed sensor nodes
2. Integrated 3D Sensing & High-Precision Localization IC
Integrated 3D Sensing & High-Precision Localization IC

Abstract

This research presents an integrated IR-UWB sensing and localization IC designed for 3D spatial estimation. By combining time-delay-based Tx beamforming and multi-array Rx architectures, the system enables simultaneous azimuth, elevation angle (AoA), and distance measurements. The ultra-low-power time-domain processing structure utilizes TDoA and TDC/DTC modules to achieve high precision with low power consumption.

Key Highlights

  • Time-delay Tx beamforming and multi-array Rx for integrated 3D spatial positioning
  • TDoA & TDC-based high-precision azimuth and elevation estimation
  • Switching-based channel sharing scheme for ultra-low-power multi-channel Rx
  • High accuracy performance: Angle error ≤ 2° and time resolution ≤ 10 ps
  • Target Applications: Disaster response, NLOS human detection, autonomous mobility, and 3D positioning
3. Wireless Integrated Sensing and Communication (ISAC) System
Wireless Integrated Sensing and Communication (ISAC) System

Abstract

This research proposes a sub-mW ultra-low-power wireless ISAC transceiver, enabling up to 100 Mbps data rates and sub-cm ranging precision. Utilizing S-OOK modulation and Two-Way Ranging (TWR), the system features a digital edge-combining Tx (<0.5 mW) and a non-coherent self-mixing Rx with a Two-Step Vernier TDC (<3 ps resolution) in the 6.5–8.0 GHz band. The integrated single-module architecture also supports seamless switching to standalone radar mode for uncooperative targets.

Key Highlights

  • Sub-mW ISAC Performance: Delivers 100 Mbps communication and sub-cm ranging at under 1 mW total power
  • Sub-Centimeter Ranging: Achieves <3 ps time resolution via a Two-Step Vernier TDC for high-precision TWR
  • Low-Power Digital Tx: Employs edge-combining logic and power-gating switches to keep Tx power under 0.5 mW at 6.5–8.0 GHz
  • High-Sensitivity Rx Chain: Combines a non-coherent self-mixing detector with processing gain to reach an Rx sensitivity of -80 dBm
  • Dual-Mode Flexibility: Features seamless switching between TWR communication and standalone radar mode on a single module
4. Compound Semiconductor RF IC & High-Reliability Systems
Compound Semiconductor RF IC & High-Reliability Systems

Abstract

This research focuses on GaN and compound semiconductor RF IC designs engineered for extreme operational environments. By employing linearization techniques and radiation-aware bias compensation circuits, the proposed designs enhance linearity and reliability in power amplifiers and LNAs. These systems leverage wide bandgap characteristics for high-power, high-efficiency RF front-end modules.

Key Highlights

  • AI-assisted predistortion for power amplifier linearization and parameter optimization
  • On-chip broadside- and edge-coupled baluns for differential RF outputs
  • Adaptive compensation architecture for PVT, memory, and aging effects
  • MGTR-based linearity enhancement for GaN power amplifiers (PA) and low-noise amplifiers (LNA)
  • Radiation-aware device design and LUT-based adaptive bias compensation
  • Target Applications: Defense, space, satellite communications, and high-power RF front-ends

Chip Gallery
(Die & Layout)

TCAS-II
High-Speed IR-UWB Transmitter with a Power-Gating Technique and advanced modulation technique
25' TCAS-II
MWTL
Ultra Low Power Sliding-IF Receiver
25' MWTL
JSSC Samsung
IR-UWB Radar Transceiver for Child Presence Detection and Precision Positioning
25' JSSC (Invited) designed from Samsung
TbioCaS
Amplitude and Synchronized Time Shift Keying IR-UWB Transceiver IC for BCI Application
24' TbioCaS
ACCESS
High Speed Active Sampler with distortion cancellation technique
24' ACCESS (extended version of the 22' TCAS2)
ISSCC JSSC Samsung
802.15.4z Fully Integrated UWB Transceiver SoC
23' ISSCC & 23' JSSC (Invited) designed from Samsung
E-MPPM
Extended - Multi Pulse Position Modulation Transceiver IC
21' ISSCC & 22' IEEE JSSC
Gesture Recognition
Gesture Recognition System using Impulse Radar
19' SoVC & 20' IEEE JSSC
LNA
Wideband Low Noise Amplifier using Active Inductor
19' IEEE TMTT
AoA Toggled TDC
Angle-of-Arrival Measuring System using Toggled TDC
19' IEEE MWCL
Digitalized MPPM
Digitalized - Multi Pulse Position Modulation Transceiver IC
19' IEEE JSSC
AoA Sensor
Angle-of-Arrival Measuring System using Receiver Array
16' IEEE Sensor

Publications

18 journal & conference papers · * Corresponding author
2025
[18] IEEE TCAS-II Kyoungseok Song, Donggun Lee, Geunhaeng Lee, Yonghui Li, Tae Wook Kim*
A 2.54 Gbps, 1.22 pJ/bit, IR-UWB Transmitter with a Power-Gating Technique
IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS-II) (SCI(E)), 2025 [Link]
[17] IEEE MWTL Hyun-Gi Seok, Keun-Mok Kim, Sang-Gug Lee, In-Young Lee, Geunhaeng Lee*
ULP Sliding-IF Receiver with 25% Duty Passive Mixer and Enhanced LO Feed-Through Rejection
IEEE Microwave and Wireless Technology Letters (MWTL) (SCI(E)), 2025 [Link]
[16] IEEE JSSC Hyun-Gi Seok*, Wan Kim, Shinyoung Kim, Geunhaeng Lee, et al.
High-Sensitivity, Low-Power IR-UWB Radar Transceiver with Self-Interference Resistance for Child Presence Detection and Precision Positioning
IEEE Journal of Solid-States Circuits (JSSC) (SCI(E)), 2025, Invited [Link]
2024
[15] IEEE TBioCAS Geunhaeng Lee, Junyoung Jang, Kyungseok Song and Tae Wook Kim*
A 6-9 GHz 1.28 Gbps 76mW Amplitude and Synchronized Time Shift Keying IR-UWB CMOS Transceiver for Brain Computer Interfaces
IEEE Transactions on Biomedical Circuits and Systems (SCI(E)), 2024 [Link]
[14] IEIE Journal Geunhaeng Lee* (Sole Author)
Ultra-Low Power 1 Gbps Amplitude Modulation Ultra-Wideband CMOS Transmitter
IEIE Journal of the Institute of Electronics and Information Engineers (KCI), 2024 [Link]
[13] IEEE ACCESS Junyoung Jang, Geunhaeng Lee and Tae Wook Kim*
An Active Track and Hold Circuit with Linearity Enhancement Technique and Its Analysis using Volterra Series
IEEE Access (SCI(E)), 2024 [Link]
2023
[12] IEEE ACCESS Ui-Suk Suh, Geunhaeng Lee, Jieun Han, Tae Wook Kim and Won-Sang Ra*
Passive IR-UWB Localization System for UAV-based Electric Facility Inspection during GPS Outage
IEEE Access (SCI(E)), 2023 [Link]
[11] IEEE JSSC Wan Kim*, Hyun-Gi Seok, Geunhaeng Lee, et al.
A Fully Integrated IEEE 802.15.4/4z Compliant 6.5-8GHz UWB System-on Chip RF Transceiver Supporting Precision Positioning in CMOS 28nm Process
IEEE Journal of Solid-States Circuits (JSSC) (SCI(E)), 2023, Invited [Link]
~2022
[10] ISSCC 2023 Wan Kim*, Hyun-Gi Seok, Geunhaeng Lee, et al.
A Fully Integrated IEEE 802.15.4/4z Compliant 6.5-8GHz UWB System-on Chip RF Transceiver Supporting Precision Positioning in CMOS 28nm Process
IEEE International Solid-State Circuits Conference (ISSCC), 2023 [Link]
[9] IEEE JSSC Geunhaeng Lee, Junyoung Jang, Ji-Hoon Kim and Tae Wook Kim*
An IR -UWB CMOS Transceiver with Extended Pulse Position Modulation
IEEE Journal of Solid-States Circuits (JSSC) (SCI(E)), 2022 [Link]
[8] ISSCC 2021 Geunhaeng Lee, Sanghwa Lee, Ji-Hoon Kim and Tae Wook Kim*
A 1.125 Gbps, 28mW, 2m radio-range IR-UWB CMOS Transceiver
IEEE International Solid-State Circuits Conference (ISSCC), 2021 [Link]
[7] IEEE JSSC Jungwoon Park, Junyoung Jang, Geunhaeng Lee, Hyunmin Koh, Changhwan Kim, Tae Wook Kim*
A Time Domain Artificial Intelligence Radar System Using 33-GHz Direct Sampling for Hand Gesture Recognition
IEEE Journal of Solid-States Circuits (JSSC) (SCI(E)), 2020 [Link]
[6] IEEE TMTT Junyoung Jang, Hansol Kim, Geunhaeng Lee and Tae Wook Kim*
Two-Stage Compact Wideband Flat Gain Low-Noise Amplifier Using High-Frequency Feedforward Active Inductor
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES (TMTT) (SCI(E)), 2019 [Link]
[5] IEEE MWCL Geunhaeng Lee, Hyunmin Koh, Ui-Suk Suh and Tae Wook Kim*
An IR-UWB Angle-of-Arrival Sensor IC Using Auto-Toggled Time-to-Digital Converter
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS (MWCL) (SCI(E)), 2019 [Link]
[4] IEEE JSSC Geunhaeng Lee, Jungwoon Park, Junyoung Jang, Taekhyun Jung, Tae Wook Kim*
An IR -UWB CMOS Transceiver for High-Data-Rate, Low-Power, and Short-Range Communication
IEEE Journal of Solid-States Circuits (JSSC) (SCI(E)), 2019 [Link]
[3] VLSI SoVC Jungwoon Park, Junyoung Jang, Geunhaeng Lee, Hyunmin Koh, Changhwan Kim and Tae Wook Kim*
A Time Domain Artificial Intelligence Radar for Hand Gesture Recognition Using 33-GHz Direct Sampling
IEEE Symposia on VLSI Circuits (SoVC), 2019 [Link]
[2] ICEIC 2017 Geunhaeng Lee and Tae Wook Kim*
Auto Error Rejection Digital Back End In IR-UWB System
International Conference on Electronics, Information, and Communication (ICEIC), 2017 [Link]
[1] IEEE SENSORS Byung Gyu Yu, Geunhaeng Lee, Hong Gul Han, Won-Sang Ra and Tae Wook Kim*
A Time-Based Angle-of-Arrival Sensor Using CMOS IR-UWB Transceivers
IEEE SENSORS JOURNAL(SCI(E)), 2016 [Link]

Patents

18 registered & filed patents · Domestic & International
INTL
[5] US FILED Geunhaeng Lee
ULTRA-WIDEBAND TRANSMITTER AND RECEIVER, AND WIRELESS APPLICATION METHOD THEREOF
US – Filed, Submitted, 18/970,837
[4] US REGISTERED Tae Wook Kim, Minjae Yoo and Geunhaeng Lee
DISTANCE MEASURING DEVICE AND IMPULSE IQ SIGNAL MISMATCH CALIBRATION DEVICE
US – Registration, 12,326,504
[3] CHINA FILED Tae Wook Kim and Geunhaeng Lee
IMPULSE SIGNAL GENERATOR USING FREQUENCY HOPPING TECHNIQUE AND METHOD FOR OPERATING THE SAME
China – Filed, Submitted
[2] US REGISTERED Tae Wook Kim and Geunhaeng Lee
MODULATION METHOD, MODULATION APPARATUS USING THE SAME, DEMODULATION METHOD, AND DEMODULATION APPARATUS USING THE SAME
US – Registration, 17/410,652
[1] US REGISTERED Tae Wook Kim, Taehyun Jung and Geunhaeng Lee
TRANSMITTER, DATA RECEIVER AND SMART DEVICE USING THE SAME
US - Registration 14/980,957
KR
[13] KR FILED 이근행, 이상우
방사선 환경에서 트랜지스터의 특성 변화를 보정하기 위한 장치 및 방법
Korea – Filed, Submitted, 10-2026-0182454
[12] KR FILED 이근행, 이시원
임펄스 기반 다중 안테나 배열을 이용한 3차원 위치 추정 시스템 및 방법
Korea – Filed, Submitted, 10-2026-0182453
[11] KR FILED 이근행
펄스 진폭 변조 회로, 이를 포함하는 송신 장치 및 신호 송신 방법
Korea – Filed, Submitted, 10-2026-0182452
[10] KR FILED 이근행
도달 각도 차이에 기반한 평면 측위 시스템
Korea – Filed, Submitted, 10-2024-0178299
[9] KR REGISTERED 이근행
초광대역 송신기 및 수신기, 및 그것의 무선 응용 방법
Korea – Registration, 10-2969072
[8] KR REGISTERED 이근행
진폭-위상 직교 변조 기법이 적용된 초광대역 송신기
Korea – Registration, 10-2951543
[7] KR REGISTERED 김태욱, 유민재, 이근행
거리 측정 장치 및 임펄스 IQ 신호 부정합 교정 장치
Korea – Registration, 10-2488870
[6] KR REGISTERED 김태욱, 이근행
변조 방법, 복조 방법 및 이들을 이용하는 변조 장치 및 복조 장치
Korea – Registration, 10-2421478
[5] KR REGISTERED 김태욱, 김창환, 이근행
임펄스 검출을 위한 엔벨로프 검출기 및 그 방법
Korea – Registration, 10-2198548
[4] KR REGISTERED 김태욱, 이근행
주파수 도약 기술을 이용한 디지털화된 다중 펄스 변조 송신기 및 그 동작방법
Korea – Registration, 10-2169186
[3] KR REGISTERED 김태욱, 이근행
임펄스 신호 수신기를 위한 동기화 장치 및 그 동작방법
Korea – Registration, 10-2168362
[2] KR REGISTERED 김태욱, 이근행
주파수 도약 기술을 이용한 임펄스 신호 생성기 및 그 동작방법
Korea – Registration, 10-2155267
[1] KR REGISTERED 김태욱, 정택현, 이근행
데이터 송신 장치, 데이터 수신 장치 및 그를 이용하는 스마트 디바이스
Korea – Registration, 10-1621853

Projects

3 Ongoing & Internal Grants · National Research Foundation & University Grants
[3] NRF 기본연구 The National Research Foundation of Korea (NRF)
차세대 통신-센싱 융합 환경을 위한 초저전력 3차원 각도·거리 통합추정 임펄스-라디오 UWB 하이브리드 빔포밍 레이다 SoC
과제기간: 2026.09.01 ~ 2031.08.31 (60 months)
[2] INU GRANT INU Internal Research Grant/Project (인천대학교 교내연구과제)
고차원 변조 기법을 이용한 UWB IC 개발
과제기간: 2026.05.01 ~ 2027.04.30
[1] INU GRANT INU Internal Research Grant/Project (인천대학교 교내연구과제)
초고속 CMOS 무선 송수신기 연구
과제기간: 2025.05.01 ~ 2027.04.30

Invited Talks and Seminar

2026

[7] LIG D&A 현직자의 세미나- Principal Engineer Hyungjin Jung from LIG D&A

2026 dept. of ITE, INU ARCS Lab. Open Lab Seminar

26.10.01

LIG D&A 세미나 1 🔍 1/2
LIG D&A 세미나 2 🔍 2/2

LIG Defence & Aerospace (LIG D&A, 구 LIG 넥스원) 정형진 수석님께서 본교 ARCS Lab. 오픈랩 행사에 참석하셔서 학생들에게 회사 소개 및 방산 산업에 대한 전반적인 발전 방향과 실무에서 필요한 역량 등에 대해 상세히 소개해주시는 시간을 가졌습니다. 정형진 수석님께서 귀한 시간 내주셔서 올해도 좋은 Open Lab. 행사가 되었던 것 같습니다.

[6] New connectivity solution – Ultra wideband System Design (Communication to geometrical Sensing in RFIC) - Prof. Geunhaeng Lee

LIG Nex1

26.05.14

2025

[5] Basic Electronic Theory Seminar for Junior Freshman Engineer - Prof. Geunhaeng Lee

STATS ChipPAC Korea

25.11.26

[4] 삼성전자 현직자의 세미나 및 질의응답 시간 - Dr. Hyun-Gi Seok from Samsung Electronics S.LSI

2025 dept. of ITE, INU Open Lab Seminar

25.09.30

Open Lab Seminar 🔍 클릭 확대

삼성전자 석현기 박사님께서 인천대학교 정보통신공학과 OPEN Lab. 행사에 참석해주셔서 학생들에게 귀감이 되는 얘기와 많은 조언들을 해주셨습니다.
석현기 박사님께서 참석해주신 덕분에 더욱 더 뜻깊은 OPEN Lab. 행사가 될 수 있었던 것 같습니다.

2024

[3] UWB 송수신기 개발 동향 [Link] - Prof. Geunhaeng Lee

24th RF/Analog IC Workshop (제 24회 RF/아날로그 회로 워크샵)

24.09.27

[2] Next Connectivity Solution: UWB 기술 소개 및 송수신기 연구 개발 동향 [Link] - Prof. Geunhaeng Lee

2024 KIEES Summer Conference (2024 전자파학회 하계종합학술대회)

24.08.21

2023

[1] 최신 반도체 산업 동향-삼성전자 전현직자가 들려주는 이야기 [Link] - Prof. Geunhaeng Lee

Pusan National University, Semiconductor Engineering Track

23.08.28

Teaching

2026-2 (Incheon National University)
  • Circuit Network Theory (Circuit Theory II)
  • Topics in Microwave Circuit Design (Graduate School)
  • RISE (Topics on RF Circuit Design Education)
2026-1 (Incheon National University)
  • Electronic Physics
  • Circuit Theory (Electric Circuits I)
  • Advanced Microelectronics (Electronic Circuit II)
2025-2 (Incheon National University)
  • Circuit Network Theory (Circuit Theory II)
  • Topics in Microwave Circuit Design (Graduate School)
  • Introduction to AI and ICT Convergence 2 (Team Teaching)
2025-1 (Incheon National University)
  • Electronic Physics
  • ICT Engineering Mathematics
2024-2 (Andong National University)
  • Microelectronics II (Electronic Circuit II)
  • Electric Circuits II
  • Capstone Design II (Team Teaching)
  • Microelectronics I (Electronic Circuit I) (Regional Innovation System - DGM Track)
  • IoT Capstone Design II (Team Teaching) (Regional Innovation System - DGM Track)
2024-1 (Andong National University)
  • Microelectronics I (Electronic Circuit I)
  • Experiment of Microelectronics I
  • Electric Circuits I
  • Capstone Design I (Team Teaching)
  • IoT Capstone Design I (Team Teaching) (Regional Innovation System - DGM Track)
2023-2 (Andong National University)
  • Engineering Mathematics II
  • Microprocessor System Design
  • Experiment of Microelectronics II
  • Capstone Design II (Team Teaching)
  • Analog Communication System Design (Graduate School)
2023-1 (Andong National University)
  • Engineering Mathematics I
  • Microprocessor
  • Microelectronics II (Electronic Circuit II)
  • Experiment of Microelectronics I

News

[2026]

[2026.09] Youngchan (undergraduate researcher) received the Outstanding Paper Award at the 26th RF/Analog Workshop for his paper titled “A 2-Gbps IR-UWB Transmitter Using Hybrid 4-PAM/4-PSK Modulation.” The paper presented high-order modulation techniques for high-speed, energy-efficient wireless transmission. Congrats to Youngchan on this well-deserved recognition!

RF/Analog Workshop Outstanding Paper Award 🔍 클릭 확대

[2026.08] Siwon has been selected for the 2026 Master's Student Research Grant Program (석사과정 연구장려금). The selected research project is titled “임펄스 기반 다중 배열 수신기를 이용한 고정밀 3차원 위치 추정 시스템 IC 설계”. Through this research grant, Siwon will receive a total of 12 million KRW from September 2026 to August 2027. Congrats!

Master's Student Research Grant Program 🔍 클릭 확대

[2026.08] Our research proposal, "차세대 통신-센싱 융합 환경을 위한 초저전력 3차원 각도·거리 통합추정 임펄스-라디오 UWB 하이브리드 빔포밍 레이다 SoC," has been selected for the Basic Research Program (기본연구) by the National Research Foundation of Korea (NRF, 한국연구재단). The project will run for 60 months, from September 2026 to August 2031. As our research group's first external project, we hope this will serve as a major stepping stone for our future researches.

NRF Basic Research Program 🔍 클릭 확대

[2026.02] Youngchan and Sungjae have newly joined our ARCS Lab. They will be working in the lab as interns and plan to pursue their Master’s degrees with us after graduation. We warmly congratulate them on joining the lab and wish them a meaningful and rewarding graduate journey.

[2025]

[2025.09] Siwon and Sangwoo have joined ARCS LAB as new members. They plan to begin their research as master's students starting in the 2026-1 semester. We warmly welcome them and hope their degree journey will be both meaningful and rewarding!

[2025.07] Our paper (A 2.54 Gbps, 1.22 pJ/bit, IR-UWB Transmitter with a Power-Gating Technique) has been accepted to IEEE TCAS-II. I have been involved as a co-author. I would like to thank my supervisor professor, Tae Wook Kim (Corresponding author) and my co-worker, Kyungseok Song (1st)

[2025.05] Our paper (ULP Sliding-IF Receiver with 25% Duty Passive Mixer and Enhanced LO Feed-Through Rejection) has been accepted to IEEE MWTL. I have been involved as a corresponding author. I would like to thank my co-worker, Dr. Hyun-Gi Seok, and research crews of NICE Lab., KAIST (PI : Prof. Sang-Gug Lee).

[2025.03] I will be transitioning from the dept. of electronic engineering at Andong National University to the dept. of information and telecommunication Engineering at Incheon National University starting from the 2025 spring semester. I sincerely thank the faculty members at Andong National University. Please support me in this new beginning!

[2025.02] Our invited paper from IEEE SoVC 2024 (High-Sensitivity, Low-Power IR-UWB Radar Transceiver with Self-Interference Resistance for Child Presence Detection and Precision Positioning) has been accepted to IEEE JSSC. I have been involved as a co-author. I would like to thank my co-workers at Samsung Electronics.

[2024]

[2024.09] Our paper (A 6-9 GHz 1.28 Gbps 76mA Amplitude and Synchronized Time Shift Keying IR-UWB CMOS Transceiver for Brain Computer Interfaces) has been accepted to IEEE Transactions on Biomedical Circuits and Systems. I have been involved as a first-author (1st). I would like to thank my supervisor professor, Tae Wook Kim (Corresponding author) and my co-workers (Dr. Junyoung Jang, Mr. Kyungseok Song; co-author)

[2024.07] My paper (Ultra-Low Power 1 Gbps Amplitude Modulation Ultra-Wideband CMOS Transmitter) has been accepted to IEIE Journal of the Institute of Electronics and Information Engineers as a sole author.

[2024.01] Our paper (An Active Track and Hold Circuit with Linearity Enhancement Technique and Its Analysis using Volterra Series) has been accepted to IEEE Access. I have been involved as a co-author (2nd). I would like to thank my supervisor professor, Tae Wook Kim (Corresponding author) and my co-worker (Dr. Junyoung Jang, 1st author)

[2023]

[2023.09] Our invited paper from ISSCC 2023 (A Fully Integrated IEEE 802.15.4/4z Compliant 6.5-8GHz UWB System-on Chip RF Transceiver Supporting Precision Positioning in CMOS 28nm Process ) has been accepted to IEEE JSSC. I have been involved as a co-author (3rd). I would like to thank my co-workers at Samsung Electronics.

[2023.04] Our paper (Passive IR-UWB Localization System for UAV-based Electric Facility Inspection during GPS Outage) has been accepted to IEEE Access. I was involved as a co-author (2nd)

[2023.04] Our paper (Fully integrated UWB Transceiver, IEEE 802.15.4z) has been invited from IEEE JSSC. I was involved as a co-author (3rd)

[2023.03] Geunhaeng has been with dept. of electronic engineering, Andong National University as an assistant professor.

✕ 확대 이미지