Department of Biomedical Engineering

Bioelectronics Research > Bioelectronics

  • AB Lab.
  • BCAS Lab.

Applied Bioelectronics Laboratory (Professor Hyoungsuk. Yoo)


AB Lab introduction : Welcome to the website of the Applied Bioelectronics Laboratory (ABLab) at Hanyang University, Seoul, South Korea. The lab has been established since 2011. Being a lab equipped with advanced research facilities and high-end computer technology, we have continued doing promising research in the field of RF coils, High-field MRIs, Antenna Systems, Implantable Medical systems, Electromagnetics, RF safety, Metamaterial, Wireless Power Transfer, Image Processing, etc. One part of our lab is equipped with various biomedical instruments, equipments, materials and chemicals for performing different experiments by using biological phantoms (head model, saline solution, ASTM phantom). The goals of ABLab are (i) Developing the MRI multi-channel RF coil system for UHF MRI and customized its design for better transmit efficiency. (ii) To develop the millimeter wave 60 GHz metamaterials for future high-speed 5G communications. (iii) The current focus of our lab is to design an efficient WPT system for near field communications and electrical vehicle charging. The WPT system overcome the problem of low power transfer efficiency, safety of IMDs antennas, and human safety with IMDs exposed to WPT system. The lab focusses also on Tattoo design and DBS for user safety. Also, we have collaborated with Georgia-Tech and developed the intraoral tongue drive system for user facilitation.

Fields and Topics Recent research results

MRI RF Coil Design / RF safety for IMD

  • Develop multi-channel coil for UHF MRI
  • Customized design for better transmit efficiency
  • Analyze thermal effect by metallic implant device
  • Develop method to alleviate heating
  • Integration of High-permittivity dielectric pad for transmission efficiency improvement.
Research Results-image1

Millimeter waves 60 GHz metamaterials

  • Designing different types of metamaterials for 60 GHz high data rates communication.
  • High frequency VNA measurements.
Research Results-image2

MRI RF safety of Tattoos

  • Different shape Tattoos design and fabrication.
  • Safety management for MR patient
  • Protection by PDMS and EBG
Research Results-image3

Wireless charging systems

  • Design of highly efficient wireless power system
  • High efficiency rectifier design
  • To develop high efficiency energy harvesting system
  • Room-based WPT system
Research Results-image4

WPT system design/ RF safety with IMDs

  • Wireless power transfer system design
  • WPT system for deep body implants
  • WPT system for high power applications (charging EVs and mobiles)
  • Safety of IMDs antenna
  • Human safety with IMDs exposed to WPT system
Research Results-image4

Intraoral Tongue Drive System

  • Dual band iTDS transmitters design at 433 and 915 MHz
  • Safety of iTDS antenna in the mouth
  • Link budget analysis for wireless mouth to external unit communications
Research Results-image4

WICP Device

  • Wireless ICP Device Design
  • RF transmitter and receiver design
  • WPT and data telemetry
Research Results-image4

Implantable antenna system design

  • Implantable antenna system for deep body implants
  • Human safety
  • Application based designs and system integration
  • MTM integration for efficiency improvements
  • Link budget analysis for wireless communications
Research Results-image4

Advance equipment’s in ABLab

  • Work stations (Dell precession tower 7810)
  • HFSS
  • Sim4Life
  • Etching Room
  • Light box UV exposure Mod#Az210
  • PhotoLami 3500 plus
  • Spectrum Analyzer Model: Anritsu MS2830A
  • RF amplifier Model: 15S1G6
  • ASTM phantom
  • Vector Network Analyzer (VNA) Model: MS46522A
Research Results-image4

Biomedical Circuit and System Lab. (BCAS Lab.)


The Biomedical Circuits and Systems Laboratory (BCAS) is a place that conducts research on circuit design and overall systems that can be used in various electronic medicines, medical devices, and wearable devices that are used throughout the biomedical field such as biomedical devices and healthcare. Due to the increase in demand for high-quality medical services and medical devices following an aging population and an increase in life expectancy, the electronic medicine market, including biomedical devices, has recently received the most heated attention among medical devices, and cooperation in convergence technologies of various technologies is essential. Among many biomedical-related technologies, this laboratory focuses on circuit design, wireless power transmission, and wireless data transmission related technologies, and seeks to create new values ​​through the convergence of these technologies. The various hardware-based research pursued by this laboratory can be applied to the entire biomedical field, and has the advantage of being widely used in mobile and IoT devices.

Research Results-image1
Fields and Topics Recent research results

Miniaturized implant system for central/peripheral nervous system

"An inductively-powered wireless neural recording and stimulation system for freely-behaving animals," IEEE Trans. Biomed. Circuits Syst, vol. 13, no. 2, pp. 413-424, April 2019.

Low-power integrated circuit (IC) design for biomedical/healthcare system

"A 80x60 Micro-Bolometer CMOS Thermal Imager Integrated with a Low-Noise 12-Bit DAC," IEEE Trans. Industrial Electronics, vol. 69, no. 8, pp. 8604-8608, Aug. 2022

High efficiency wireless power transfer system for biomedical/healthcare/IoT system

"Full-Duplex Enabled Wireless Power Transfer System via Textile for Miniaturized IMD," Biomedical Engineering Letters, vol. 12, pp. 295-302, July 2022.