• 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
  • 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
  • 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 indoor/outdoor ray tracing algorithm

    In this task, a ray tracing simulator is under development. The simulator under development is based on Geometrical Optics, and the Uniform Theory of Diffraction is also planned to be implemented. This simulator is a tool for analyzing indoor radio waves in a dynamic environment.

    IITP wave fusion lab