Dr. Junseok (Justin) Ma
From fundamental materials to real-world systems.
Junseok (Justin) Ma is an engineer and researcher working across electromagnetics, wireless technologies, and adaptive systems. He is currently a Staff Engineer in RF/Antenna Engineering at Samsung Electronics’ Advanced Antenna Lab, where he works on antenna technologies for next-generation devices.
His background brings together materials research, device fabrication, and electromagnetic engineering. At POSTECH, the University of Oxford, and KAIST, he worked on liquid crystals, printed optoelectronics, microwave and millimeter-wave devices, and reconfigurable electromagnetic systems.
Across these fields, his work has followed a consistent thread: understanding the physics of a problem, turning that understanding into a working device, and testing its performance in the real world.
Junseok received his B.S., M.S., and Ph.D. in Electrical Engineering from POSTECH. He conducted research at Oxford’s Soft Matter Photonics Group and later held a Jang Young-Sil Postdoctoral Fellowship at KAIST.
His research has appeared in Advanced Materials, Advanced Optical Materials, ACS Applied Materials & Interfaces, and other journals. His honors include POSTECH’s Kim Beom-Man Best Ph.D. Dissertation Award and the Grand Prize at the KIEES Electromagnetic Wave Measurement Thesis Contest.
Today, he is expanding from research on individual materials and devices toward the challenges of practical wireless systems. He is interested in how physical insight, experimentation, and computational methods can work together to solve increasingly complex engineering problems.
Across these experiences, his motivation remains constant: to learn deeply, build things that work, and help the people around him grow.