The Science of Computational Electromagnetics: Current Impact and Unsolved Problems
Abstract: The solution to Maxwell’s equation has been the basis of a slew of development over the past eight decades. These range from early radar systems to autonomous sys
tems today. The state of art has advanced to an extent that it computational electromagnetics has become a routine part of the design eco-system. Indeed, more often than not, it is not uncommon for designers to ask whether measured data agrees with HFSS, a simulation software. It was not always this way. A couple of decades ago, the state of art of simulations was at its infancy. Problem that could be solved were electrically small and geometrically not sophisticated. The gradual transformation of the state of art happened in late 1990’s. The transformation was largely driven by both advances in computational horsepower as well new algorithms. In concert, we have achieved remarkable capabilities. That said, the richness of our electromagnetic environment implies that there are a range of problems that are still beyond the reach of our simulation capabilities. Challenges arise due to increase in frequency, behavior of materials at these frequencies, shape and topology optimization, transient physics, multi-physics challenges, packaging in relation to new circuit architectures, and so on. In this talk, I will walk through some of the interesting topics that our group has embarked upon as well as pose a set of open interesting problems.
Bio: B. Shanker received his B’Tech from the Indian Institute of Technology, Madras, India in 1989, M.S. and Ph.D in 1992 and 1993, respectively, from The Pennsylvania State University. From 1993 to 1996 he was a research associate in the Department of Biochemistry and Biophysics at Iowa State University where he worked on the Molecular Theory of Optical Activity. From 1996 to 1999 he was with the Center for Computational Electromagnetics at the University of Illinois at Urbana-Champaign as a Visiting Assistant Professor, and from 1999-2002 with the Department of Electrical and Computer Engineering at Iowa State University as an Assistant Professor.
From 2017, he was a University Distinguished Professor (an honor accorded to about 2% of tenure system MSU faculty members) in the Department of Electrical and Computer Engineering at Michigan State University, and the Department of Physics and Astronomy. Currently, he is a Professor and Chair of Electrical and Computer Engineering at The Ohio State University. At Michigan State University, he was appointed Associate Chair of the Department of Computational Mathematics, Science and Engineering, a new department at MSU and was a key player in building this Department. Earlier he served as the Associate Chair for Graduate Studies in the Department of Electrical and Computer Engineering from 2012-2015, and the Associate Chair for Research in ECE from 2019-2022. He has authored/co-authored around 450 journal and conference papers and presented a number of invited talks. His research interests include all aspects of computational electromagnetics (frequency and time domain integral equation based methods, multi-scale fast multipole methods, fast transient methods, higher order finite element and integral equation methods), propagation in complex media, mesoscale electromagnetics, and particle and molecular dynamics as applied to multiphysics and multiscale problems. He was an Associate Editor for IEEE Antennas and Wireless Propagation Letters (AWPL), IEEE Transactions on Antennas and Propagation, and Topical Editor for Journal of Optical Society of America: A. He is a full member of the USNC-URSI Commission B. He is Fellow of IEEE (class 2010), elected for his contributions to time and frequency domain computational electromagnetics. He has also been awarded the Withrow Distinguished Junior scholar (in 2003), Withrow Distinguished Senior scholar (in 2010), the Withrow teaching award (in 2007), and the Beal Outstanding Faculty award (2014).
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