Alan Fenn is a senior staff member in the RF Technology Group at Lincoln Laboratory, Massachusetts Institute of Technology. He has conducted extensive research in the area of phased array antennas. He joined Lincoln Laboratory in 1981 and was a member of the Space Radar Technology Group from 1982 to 1991, where his primary research was in adaptive phased-array antenna design and testing. From 1992 to 1999 he was an assistant group leader in the Radio Frequency Technology Group where he managed programs involving RF measurements of atmospheric effects on satellite communications. From 1978 to 1981, he was a senior engineer in the Antenna Systems and Design/Analysis Group in the RF Systems Department at Martin Marietta Aerospace, Denver, Colorado. He received a B.S. from the University of Illinois at Chicago, and an M.S. and Ph.D. from The Ohio State University, Columbus, all in electrical engineering. Dr. Fenn is a Life Fellow of the IEEE for his contributions to the theory and practice of adaptive phased-array antennas. He served as the Technical Program Chair of the 2019 IEEE International Symposium on Phased Array Systems & Technology and is currently serving as an advisor for the 2022 symposium. He was a Technical Program Chair of the 2018 IEEE Antennas and Propagation Society Symposium. He has served as an associate editor in the area of adaptive antennas for the IEEE Transactions on Antennas and Propagation. He was a co-recipient of the 2016 IEEE Aerospace Conference M. Charles Fogg Best Paper Award. In 1990 he was a co-recipient of the IEEE Antennas and Propagation Society’s H.A. Wheeler Applications Prize Paper Award. He also received the IEEE/URSI-sponsored 1994 International Symposium on Antennas (JINA 94) Award. Dr. Fenn has authored the book Electromagnetics and Antenna Technology as well as four other books and numerous journal articles, patents, and short-course lectures and conference presentations on phased array antennas.