Nathan IDA
Professor, Department of Electrical and Computer Engineering, The University of Akron, USA
Research interests:
computational electromagnetics, nondestructive evaluation of materials, wave propagation in materials, scattering antennas, electromagnetic compatibility, computer algorithms and computer methods
Keynote address:
Surface Impedance Boundary Conditions – Extensions and Applications in Low Frequencies Computation
Abstract:
Surface impedance boundary conditions have been used for over 60 years in both analytical and numerical computation. High frequency SIBCs have been particularly successful because of the minimal penetration of electromagnetic fields in conductors and lossy dielectrics. However, SIBCs based on the skin depth have also been used albeit these have been limited to first order (Leontovich) conditions. A general method of derivation of SIBCs of arbitrary order is presented and shown to apply to low frequency power applications. The SIBCs are universally applicable and the order of the SIBC defines the errors expected. Whereas low order SIBCs apply to classical flat surfaces and perpendicular diffusion, higher order conditions take into account curvatures and lateral diffusion as well. Results shown include transmission line parameters, eddy current testing and other power applications.
Nathan IDA is Distinguished Professor of Electrical and Computer Engineering at The University of Akron in Akron, Ohio, USA. His current research interests are in the areas of numerical modeling of electromagnetic fields, electromagnetic wave propagation, theoretical issues in computation, nondestructive testing of materials at low and microwave frequencies as well as in communications, especially in low power remote control and wireless sensing. Dr. Ida has published some 250 papers on electromagnetic field computation, parallel and vector algorithms and computation, nondestructive testing of materials, surface impedance boundary conditions, electromagnetic and microwave sensors and others. He has written six books, two on computation of electromagnetic fields a third on nondestructive testing with microwaves, a textbook on electromagnetics, now in its second edition, a monograph on surface impedance boundary conditions and a textbook on sensors and actuators. Born in Romania in 1949, he received his BSEE and MSEE from the Ben Gurion University of the Negev in Israel in 1977 and 1979 respectively. In 1983 he received his Ph.D. in Electrical Engineering from Colorado State University in Fort Collins, Colorado.
Dr. Ida is a Fellow of the IEEE and a Fellow of the American Society of Nondestructive Testing. Dr. Ida teaches Electromagnetics, Antenna Theory and Electromagnetic Compatibility, Sensing and Actuation as well as Computational Methods and Algorithms.
Dr. Ida is a Fellow of the IEEE and a Fellow of the American Society of Nondestructive Testing. Dr. Ida teaches Electromagnetics, Antenna Theory and Electromagnetic Compatibility, Sensing and Actuation as well as Computational Methods and Algorithms.
