John W. Bandler - Design Optimization via Surrogate Modeling and Space Mapping

Fyrirlesturinn verður haldinn mánudaginn 21. september kl. 16:00 í húsnæði Háskólans í Reykjavík, Kringlunni 1 (gamla Mbl. húsinu) í stofu K-5. 


Do you need an engineering design but your optimization algorithms threaten hundreds of costly highfidelity simulations, and perhaps days or weeks of CPU time? Consider an underlying surrogate model. Take the high-fidelity simulator out of the classical optimization loop. Use space mapping.

Optimization via space mapping involves the iterative enhancement of surrogates. Such surrogates arise in a number of ways. A popular approach is through fast-to-compute, physically-based “coarse” models that describe the expensive “fine” model behavior relatively well. A space mapping algorithm then provides excellent designs after only a handful of high-fidelity simulations.

Space mapping mimics the way the brain relates new objects or images with familiar objects, images, reality, or experience. The methodology follows the traditional experience and intuition of the engineer, yet is amenable to mathematical treatment. It offers a quantitative explanation for an expert's “feel” for a problem.

Following Bandler's 1993 concept, space mapping methodology continues to provide success in diverse areas: electronic, photonic, antenna, and magnetic systems; civil, mechanical, and aerospace engineering structures, including automotive crashworthiness design. Corporations that have incorporated space mapping into their design portfolios include Philips, Saab, and Com Dev.

We focus on why, when, and how the intuitive space mapping procedure works. We provide microwave engineering examples involving commercial electromagnetic simulators. Two

IEEE Microwave Magazine

articles complement our presentation, one published in February 2008, the second in December 2008

John W. Bandler

studied at Imperial College of Science and Technology, London, England, from 1960 to 1966. He received the B.Sc.(Eng.), Ph.D. and D.Sc.(Eng.) degrees from the University of London, England, in 1963, 1967 and 1976, respectively. He is currently Professor Emeritus in Electrical and Computer Engineering, McMaster University, Hamilton, Canada, and President of Bandler Corporation. His record spans some 45 years of scholarly, pioneering and professional contributions in radio frequency (RF) and microwave theory and techniques, optimization of circuits and systems, and computer-aided engineering (more than 430 papers). His achievements and commercial software implementations include design centering and yield-driven design for which he received the IEEE MTT-S Microwave Application Award in 2004. He has also contributed to analog diagnosis, testing and tuning, and device statistical parameter extraction, now taken for granted in the RF and microwave arena. He founded Optimization Systems Associates Inc. (OSA) in 1983, developing optimization-based products until 1997, the date of acquisition of OSA by Hewlett-Packard Company (HP). His optimization contributions, particularly those exploiting fullwave electromagnetic simulators, set benchmarks for today's software. He is a Fellow of the Canadian Academy of Engineering, a Fellow of the Royal Society of Canada, a Fellow of the IEEE, a Fellow of the Institution of Electrical Engineers (Great Britain), a Fellow of the Engineering Institute of Canada, a Member of the Association of Professional Engineers of the Province of Ontario (Canada) and a Member of the MIT Electromagnetics Academy. He received the Automatic Radio Frequency Techniques Group (ARFTG) Automated Measurements Career Award in 1994.

John W. Bandler
McMaster University,

Bandler Corporation,