Jaeyul Choo received the B.S. and M.S. degrees in electronic and electrical engineering from Hongik University, Seoul, Korea, in 2004 and 2006, respectively, and the Ph.D. degree in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2014. He was an Associate Research Engineer with the Central Research and Development Center, LS Electric, Anyang, Korea, from 2006 to 2010. He was a Senior Researcher with the Korea Institute of Nuclear Safety (KINS), Daejeon, Korea, from 2014 to 2020. Since September 2020, he has been an assistant professor at the Department of Electronics Engineering, Andong National University, Andong, Korea. His current research interests include the design of tag and reader antennas for RFID, the electrical analysis for flip-chip bonding package, and the electromagnetic field analyses of vias, transmission lines, and scattering structure for dealing with electromagnetic interference problems.