University of California, Riverside

Department of Electrical and Computer Engineering



Higher Order Electromagnetic Modeling for RF, Wireless, & Microwave Engineering App.


Higher Order Electromagnetic Modeling for RF, Wireless, & Microwave Engineering....
 
Professor Branislav Notaros
Department of Electrical and Computer Engineering, University of Massachusetts Dartmouth

Date: April 18, 2005
Time: 11:00 am
Location: Bourns Hall A265

This seminar presents higher order (large-domain) electromagnetic (EM) modeling techniques for RF, wireless, and microwave engineering applications. RF/microwave and wireless technologies are exploding! The importance of computational electromagnetics to these technologies can hardly be overstated. Electromagnetic simulations are nowadays effectively used at frequencies spanning dc to optics, for system sizes ranging from subatomic to intergalactic, and for such a broad spectrum of application areas as design of antennas and RF/microwave devices, components, and circuits, EM scattering, stealth technology, radar engineering, indoor and outdoor radio propagation, wireless communication, sensor networks, remote sensing, nondestructive evaluation, imaging, geoelectromagnetics, mine detection, electromagnetic compatibility, signal integrity, high-speed digital electronics, RF packaging, optics, new materials, microtechnology and nanotechnology, bioelectromagnetics and biotechnology. This work has been supported primarily by the National Science Foundation, its electromagnetics and wireless program, through grants to develop cutting-edge hybrid computational techniques and perform higher order modeling of several classes of practical complex EM structures and systems over a wide range of frequencies. The novel higher order techniques are based on the method of moments, finite element method, physical optics, and hybrid approaches and employ unique generalized quadrilateral boundary elements and hexahedral finite elements of arbitrary geometrical orders and arbitrary current and field approximation orders in a hierarchical fashion. This true higher order modeling technology enables using elements that are both electrically large (large-domain approach) and computationally extremely efficient. The reduction in computation costs is by one to two orders of magnitude when compared to the existing, low-order (small-domain) techniques and solutions, for the same or better accuracy. The examples and applications to be presented include a large variety of antennas and antenna arrays, microwave devices and components, EM scatterers, and electromagnetic models of automobiles and aircraft.

Biography:

Branislav M. Notaros received his Dipl.Ing. (B.S.), M.S., and Ph.D. degrees in electrical engineering from the University of Belgrade, Yugoslavia, in 1988, 1992, and 1995, respectively. He is currently an Associate Professor (with Tenure) in the Department of Electrical and Computer Engineering at the University of Massachusetts Dartmouth, where he was an Assistant Professor from 1999 to 2004. From 1989 to 1996, he was a Teaching and Research Assistant (faculty position) in the Department of Electrical Engineering at the University of Belgrade. From 1996 to 1998, he was an Assistant Professor in the same department. He spent the 1998-1999 academic year as a Research Associate at the University of Colorado at Boulder.

His research interests and activities are in applied computational electromagnetics, antennas, and microwaves. His publications so far include 17 journal papers, 41 conference papers and abstracts, chapter in a monograph, and 4 textbooks. His main contributions are in higher order or large-domain (entire-domain) computational EM techniques (based on the method of moments, finite element method, physical optics, and hybrid methods) and applications (modeling and design of antennas and microwave circuits and devices for wireless technology). His research has primarily been supported by major grants from the National Science Foundation. He serves as Director of the Telecommunications Laboratory in the Advanced Technology and Manufacturing Center at UMass Dartmouth. He has taught a variety of undergraduate and graduate courses in electromagnetic theory, antennas and propagation, computational electromagnetics, fundamentals of electrical engineering (basic circuits and fields), electromagnetic compatibility, and signal integrity, and has produced several Ph.D. and M.S. graduates. He is the author of the Electromagnetics Concept Inventory (EMCI), an assessment tool designed to measure students’ understanding of fundamental concepts in electromagnetic fields and waves.

Dr. Notaros is a Senior Member of the Institute of Electrical and Electronics Engineers (IEEE) and its several societies. He serves regularly as reviewer for the IEEE Transactions on Antennas and Propagation and IEEE Transactions on Microwave Theory and Techniques, and for a number of other journals and book series. He has also served as session chair and organizer at IEEE symposia and as reviewer and panelist for the National Science Foundation. He is the recipient of the 2005 Microwave Prize of the IEEE Microwave Theory and Techniques Society (best-paper award for the IEEE Transactions on Microwave Theory and Techniques). He was also the recipient of the 1999 Institution of Electrical Engineers (IEE) Marconi Premium (best-paper award for the IEE Proceedings on Microwaves, Antennas and Propagation). He also received the 1999 URSI (International Union of Radio Science) Young Scientist Award, 1992 Belgrade Chamber of Industry and Commerce Best M.S. Thesis Annual Award (Yugoslavia), and 2004 Dean’s Recognition Award for Outstanding Accomplishments (College of Engineering, UMass Dartmouth).
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Electrical and Computer Engineering
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University of California, Riverside
Riverside, CA 92521-0429

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