Sungjun Yoo received B.S. and M.S. degrees in electronic and electrical engineering from Hongik University, Seoul, Korea, in 2014 and 2016, respectively, and a Ph.D. degree in electronics and computer engineering from Hongik University in 2019. He joined emerging science and technology directorate, Agency for Defense Development (ADD), where he is currently a senior researcher. His studies include photonic-based radar, antenna arrays, and position optimization of array elements for adaptive beamforming.