Dr. Chappell joined DARPA as a program manager in July 2011 and became Director of the Agency’s Microsystems Technology Office (MTO) in June 2014. His interests include advanced packaging, adaptable RF systems, and antenna arrays. Prior to DARPA, Dr. Chappell served as a professor in the Electrical and Computer Engineering Department of Purdue University, where he also led the Integrated Design of Electromagnetically-Applied Systems (IDEAS) Laboratory. His research focus has been on high frequency components, specifically the unique integration of RF and microwave components based on electromagnetic analysis. This ranged from advanced RF sensors such as miniature RF ion trap mass spectrometry to advanced digital-at-every element antenna arrays. Dr. Chappell has conducted extensive research on the development of adaptable RF systems, focusing on tunable preselect filters. He has shown the ability to design a single RF system that is adaptable to numerous application areas and/or adjustable to dynamic changes within the spectral environment. Dr. Chappell is the recipient of many research and teaching awards. He has been the advisor of numerous IEEE MTT International Microwave Symposium best paper finalists and a coauthor of two best papers at the GOMACTech conference. His paper on wearable MIMO systems was selected for the best journal paper at the IEEE VT Society in 2009. In 2011, he received the ARL Director’s Coin for his work on standoff inverse analysis and manipulation of electronic systems MUIR analyzing the effects of nonlinearities in high power systems. He was selected as a Collaborative Investigator by the Howard Hughes Medical Institute for work on RF implantable systems and to join the Frontiers of Engineering meetings sponsored by the National Academies of Engineering. Dr. Chappell received his Bachelor of Science in 1998 from the University of Michigan, where he graduated summa cum laude. He received his Masters and Doctor of Philosophy, also from the University of Michigan, studying in the Radiation Laboratory on spectral isolation techniques for high frequency microwave systems using composite materials.