Omar Ramahi of University of Waterloo

Abstract: The field of EMI/EMC shares its heritage with antenna and propagation engineers, on the one hand, and physicists on the other. For the former group, much of the 20th century was spent on developing ways to predict the radiation due to some source through complex analytical and numerical schemes. Physicists, on the other hand, are interested in making the connection between the movement of the elementary charged particle, the electron, and the radiated field. Since the field of EMI/EMC engineering is related to a large degree to radiation, EMI/EMC engineers would naturally be interested in the work of these two groups. However, EMI/EMC engineers have keen interest in understanding which sources/currents are the ones that cause radiation; a question that is typically ignored by the two groups of physicists and propagation engineers. After all, if the source of radiation is found, containing it becomes easier than not knowing it in the first place.  In this talk we explore the fundamental question of "what causes radiation" from a purely practical and engineering-relevant perspective. We show that powerful numerical schemes, circuit models, and analytical techniques, while potentially providing elegant and full solution to the radiating problem, fail to highlight the physical phenomenon of interest to EMI/EMC engineers in the first place unless careful attention is paid to the fundamental sources of radiation!

Biography:

Biography: Omar M. Ramahi received the BS degrees in Mathematics and Electrical and Computer Engineering (Highest Honors) from Oregon State University, Corvallis, OR. In 1990, he was awarded the Ph.D. degree in Electrical and Computer Engineering from the University of Illinois at Urbana-Champaign (UIUC). He worked at Digital Equipment Corporation (presently, HP), where he was a member of the Alpha Server Product Development Group. In 2000, he joined the faculty of the James Clark School of Engineering at the University of Maryland at College Park as an Assistant Professor and later as a tenured Associate Professor. At Maryland, he was also a faculty member of the CALCE Electronic Products and Systems Center. Presently, he is a Professor in the Electrical and Computer Engineering Department, University of Waterloo, Ontario, Canada. He has authored and co-authored over 350 journal and conference technical papers on topics related to the electromagnetic phenomena and computational techniques to understand the same. He is a co-author of the book EMI/EMC Computational Modeling Handbook, (first edition: Kluwer, 1998, Second Ed: Springer-Verlag, 2001. Japanese edition published in 2005).  Professor Ramahi is the winner of the 2004 University of Maryland Pi Tau Sigma Purple Cam Shaft Award. He won the Excellent Paper Award in the 2004 International Symposium on Electromagnetic Compatibility, Sendai, Japan, and the 2010 University of Waterloo Award for Excellence in Graduate Supervision. In 2012, Professor Ramahi received the IEEE Electromagnetic Compatibility Society Technical Achievement Award. Professor Ramahi served as a consultant to several companies and was a co-founder of EMS-PLUS, LLC and Applied Electromagnetic Technology, LLC.  Dr. Ramahi is an elected IEEE Fellow. In 2009, he served as a Co-Guest Editor for the Journal of Applied Physics A Special Issue on Metamaterials and Photonics.  From 2007-2015, he served as an Associate Editor for the IEEE Transactions on Advanced Packaging. From 2010-2012, he served and as an IEEE EMC Society Distinguished Lecturer.  In 2014, he served as a Guest Editor for the journal Sensors, special issue on Metamaterial-Inspired Sensors.

Email:

Address:Waterloo, Ontario, Canada

Omar Ramahi of University of Waterloo

Biography:

Email:

Address:Waterloo, Ontario, Canada