• Innovative Fusion Technologies of Intelligent Antenna Material/Structure/Network for THz 6G

    To overcome the limitations of coverage/structure/function of existing Terahertz antenna systems for the world's first commercialization of 6G technology expected around 2028-2030 after 5G, intelligent antenna systems that achieve terrahertz broadband (>20GHz) / ultra-high gain (>36 dBi) / wide-angle coverage (>150°) / high efficiency (>40%) antenna performance are to be developed.

    IITP wave fusion lab
  • 5G/6G Antenna Development

    Dual polarization, dual band and miniaturized 5G mobile antenna is realized by combining basic 1x4 patch array(Broadside) and 1x4 dipole array(End-fire). Broadside uses Reactive Impedance Surface(RIS) and end-fire uses vertically folded dipole antenna to maximize gain and bandwidth performance.

    Samsung electric Korea Railroad wave fusion lab
  • Antenna-in-package technology for fine motion sensing at 140GHz

    Coupled feed structure using coupling between antenna and feed is applied due to high losses at high frequencies. The beam patterns are different depending on the arrangement and number of antennas of Tx and Rx. The Reactive Impedance Surface (RIS) can be used to make the beam pattern into a desired shape and increase gain by adjusting the impedance of the antenna close-up space. By designing a metasurface that compensates the phase just below the case cover, it is possible to solve the problem of antenna beam distortion and gain degradation due to amplitude and phase variations in the case due to the permittivity.

    IITP wave fusion lab
  • Research on Y-OCTA-integrated 5G Antenna

    We develop display-integrated 5G mm-Wave antenna. Unlike precedent studies, antenna is directly integrated with and tightly coupled to the metallic display panel. By doing so, it is expected that display visibility and touch sensor sensitivity will be greatly improved along with achieving high radiation efficiency.

    SDC wave fusion lab
  • FR4-Based Metasurface for 5G Reliable Beam Steering

    FR4-based metasurface operating at mmWave 5G is designed for reliable beam steering. By considering phase variation only one dimension and spatially modulating certain unit cells arrangement, the metasurface can achieve beam steering along the one-axis.

    Ministry of Science and ICT wave fusion lab
  • 5G/6G Polarization-Depedent Metasurface

    This metasurface confirms that high gain according to the polarization of the incident waves on the metasurface, supporting polarization-dependent beam-shaping capability as a function of the polarization of incident waves.

    Ministry of Science and ICT wave fusion lab
  • Liquid Crystal Based Beam Steerable Antenna System

    High gain and wide coverage requirements for aerial / satellite antennas are designed with simpler and lower cost antennas through Partial Reflecting Surface and Tunable Transmit Array.

    Ministry of Science and ICT wave fusion lab
  • Research on Electromagnetic wave forming using Active Metasurface

    We develop multi functional and multi band active metasurface employing liquid crystal. This material has reconfigurable permittivity according to DC bias voltage. This active metasurface enable us to transfrom arbitrary electromagnetic wavefronts into a desired form without phase shifters.

    ADD Hanwha_system wave fusion lab
  • 5G/6G Microwave Circuit Design

    For 5G/6G wireless communication, high performance circuit components are required. In this area, we have designed various circuit, such as power amplifier, phase shifter and oscillator for RF systems of mobile communication. Also, we focus on MMIC for the highly efficient power amplifier based on CMOS, GaAs and GaN fabrication technology.

    Samsung Electronics wave fusion lab
  • Microwave Stimulation System for Bio-application

    Microwave has ability to focus and deliver stimulation signal to bio-tissue, especially brain. Here, we study RFIC for generating, modulating and amplifying stimulation signal using a voltage-controlled oscillator, modulator, and power amplifier. Semi-conductor process is used to integrate the whole system into a single chip. Also, the passive probe is developed to match the bio-tissue into 50 Ohms for delivering the signal. The total stimulation system is validated by experiments on the mouse brain.

    Ministry of Science and ICT wave fusion lab
  • Advanced and Integrated Software Development for Electromagnetic Analysis

    We have joined the group which develops the advanced and integrated electromagnetic system software and we have carried out the development of ‘Ray-Tracing’ part of this software. Ray-Tracing simulation is widely adopted to model indoor and outdoor radio channels with decreasing significantly time consumption compared to campaign. In this task, a ray tracing simulator under development is based on Geometrical Optics, the Uniform Theory of Diffraction and GPU Acceleration and the accuracy of this simulator is verified by comparing its results with commercial simulator in indoor and outdoor environment.

    IITP wave fusion lab
  • Electromagnetic compatibility analysis on special ship

    In this task, we develop various EM field analysis methods on navy ship based on our ray-tracing engine. Analysis methods we performed are EMI/EMC analysis, shadow zone analysis and EMP shielding effectiveness analysis.

    KSOE wave fusion lab