Computer Science Colloquium

The recent applications of Artificial Neural Networks (ANN) to RF and microwave design mark the beginning of an unconventional and exciting alternative for modeling, design-optimization, and measurement problems in RF, microwave and millimeter-wave CAD. ANN can learn and generalize from data allowing model development even when component formulas are unavailable. ANN models are easier to update as technology changes. ANNs are universal approximators allowing re-use of the same modeling technology for both linear and nonlinear problems and at device, circuit or system (including measurement systems) levels. Yet, ANN models are simple and model evaluation is very fast. Recent research at University of Colorado has led to the use of ANNs for modeling microstrip lines, vias, CPW discontinuities, for developing models for network analyzer calibrations, and for knowledge-aided design. Similar potentialities exist for ANN applications for design in other domains. This talk will review applications of ANN modeling to RF design and discuss their potential applications for embedding knowledge in concept-modules for web-based learning.

K.C. Gupta has been a Professor at the University of Colorado since 1983. He is also the Associate Director for the NSF I/UCR Center for Advanced Manufacturing and Packaging of Microwave, Optical and Digital Electronics (CAMPmode) at the University of Colorado, and a Guest Researcher at NIST RF Technology Division. He is the author or co-author of eight books including Microstrip Line and Slotlines (Artech House, 1979; revised second edition, 1996), CAD of Microwave Circuits (Artech House, 1981; Chinese Scientific Press, 1986; Radio I Syvaz, 1987); Analysis and Design of Integrated Circuit-Antenna Modules (John Wiley 1999); and Neural Networks for RF and Microwave Design (Artech House 2000). Dr. Gupta has published over 200 research papers and holds four patents in the microwave area. Dr. Gupta is a Fellow of the IEEE, a recipient of IEEE Third Millennium Medal, a recipient of IEEE-MTTS Distinguished Educator Award, a member of the ADCOM for the MTT Society of IEEE, and has been chair of the IEEE MTT-S standing committee on Education, chair of the IEEE MTT-S Technical Committee on CAD (MTT-1), and a member of IEEE-EAB Committee on Continuing Education. He is the founding editor of the International Journal of Microwave and Millimeter-Wave Computer-Aided Engineering, published by John Wiley since 1991, and an Associate Editor for IEEE Microwave Magazine.