Caleb Fulton received the B.S. and Ph.D. degrees in electrical and computer engineering from Purdue University, West Lafayette, IN, USA, in 2006 and 2011, respectively. He is currently an Associate Professor of electrical and computer engineering with the Advanced Radar Research Center, The University of Oklahoma, Norman, OK, USA. He is involved in a number of digital phased array research and development efforts for a variety of applications. His current research interests include antenna design, digital phased-array calibration and compensation for transceiver errors, calibration for high-quality polarimetric radar measurements, integration digital transceivers and high-power GaN devices, and advanced digital beamforming design considerations. He received the Purdue University Eaton Alumni Award for design excellence for his work on the Army Digital Array Radar Project, in 2009, the Meritorious Paper Award for a summary of these efforts from the 2010 Government Microcircuit Applications and Critical Technologies Conference, and the 2015 DARPA Young Faculty Award for his ongoing digital phased-array research.