Liquid Crystals for Microwave & mmWave
Tunable phase shifters, filters, phased arrays and reconfigurable intelligent surfaces built on LC dielectrics — targeting low loss, fast switching and beam control for 5G, satellite and 6G.
Staff Engineer (CL3), RF/Antenna Engineering
Advanced Antenna Lab · Mobile eXperience (MX) Division · Samsung Electronics, Suwon
I work where electromagnetics, materials and devices meet — from AI-assisted antenna design for next-generation mobile devices, to liquid-crystal RF components, printed optoelectronics and programmable surfaces across microwave, mmWave and optical bands.
Now at Samsung Electronics
Build technology that matters —
and rise by lifting others.
I want my work to leave a positive mark beyond the lab, and to grow by helping the people around me grow. If that resonates, I’d love to hear from you.
From molecular-level material design to antennas in real devices.
Full research overview →My work turns liquid crystals from display materials into field-programmable media for electronics and photonics, and now applies that electromagnetic intuition — together with AI/ML — to antenna engineering for mobile platforms.
Liquid-crystal mixtures and composites engineered for low loss and strong tunability.
Low-loss RF LC mixture, JNCDrop-on-demand printing, laser and hybrid patterning, and surface alignment.
mm-to-µm patterning, Small MethodsTunable filters, phase shifters and intelligent surfaces; smart windows and displays.
Frontispiece, Adv. Mater.Antennas for next-generation mobile devices: mmWave, UWB and satellite links.
Samsung Electronics MXTunable phase shifters, filters, phased arrays and reconfigurable intelligent surfaces built on LC dielectrics — targeting low loss, fast switching and beam control for 5G, satellite and 6G.
Drop-on-demand printing of LC droplets and pixels for smart windows, reflective displays and AR optics — controlling transparency, color and polarization with minimal material and power.
Laser-assisted and hybrid patterning from millimeters to microns, and topological LC structures, toward programmable metasurfaces and adaptive photonic hardware.
Industry, postdoctoral and international research.
Fast-switching liquid-crystal antennas for reconfigurable intelligent surfaces (RIS) in next-generation wireless systems.
Multi-purpose, lightweight LC beamforming antennas for next-generation communication and radar on mobile platforms.
High-resolution, full-color smart windows using banking structures for precise patterning; extending printed LC to RF and optoelectronic devices.
LC characterization and fabrication for D-band RIS, and tunable microwave/mmWave components for 6G.
Developed LC composites for 5G and satellite communications; commercialized mixtures including ZOC-A019XX. Corporate disclosure
Electrical Engineering, POSTECH.
24 journal articles and 12 conference presentations across electromagnetics, liquid crystals, photonics and materials.
All publications →Invited talks and peer review.
Invited talk · Chungnam National University (CNU) · Host: Prof. Jun-Hee Na, Dept. of Electrical, Electronics and Communication Engineering Education
Functional LC mixtures, DoD printing, and microwave/mmWave applications.
Scholarships, fellowships and prizes.