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Plenary Talk4
Physical Optics for Modelling Antennas: Merging Accuracy with Simplicit
Presenter | Oscar Quevedo-Teruel |
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Affiliation | KTH Royal Institute of Technology |
He received his Telecommunication Engineering and Ph.D. Degrees from Carlos III University of Madrid, Spain in 2005 and 2010. From 2010-2011, Prof. Quevedo-Teruel joined the Department of Theoretical Physics of Condensed Matter at Universidad Autonoma de Madrid as a research fellow and went on to continue his postdoctoral research at Queen Mary University of London from 2011-2013. In 2014, he joined the Division of Electromagnetic Engineering and Fusion Science in the School of Electrical Engineering and Computer Science at KTH Royal Institute of Technology in Stockholm, Sweden, where he is a Professor and Director of the Master Programme in Electromagnetics, Fusion and Space Engineering. He has been an Associate Editor of the IEEE Transactions on Antennas and Propagation from 2018-2022 and Track Editor since 2022. He has also been the founder and editor-in-chief of the European Association on Antennas and Propagation (EurAAP) journal Reviews of Electromagnetics since 2020. He has been a member of the EurAAP Board of Directors since January 2021. Since January 2022, he is the vice-chair of EurAAP. He was a distinguished lecturer of the IEEE Antennas and Propagation Society for the period 2019-2021. He is an IEEE Fellow for his contributions to glide symmetry based metasurfaces and lens antennas. He is the co-author of more than 150 papers in international journals and 250 papers at international conferences.
Abstract
Full-wave simulators are widely used for analysing and designing microwave and antenna devices, relying on three well-established techniques: the Method of Moments, the Finite Difference Time Domain method, and the Finite Element Method. While these methods offer high accuracy, they require sub-wavelength meshing, making simulations of electrically large structures computationally intensive and sometimes prone to inaccuracies.
This presentation explores how ray tracing and physical optics can serve as efficient alternatives in many practical cases, achieving exceptional accuracy while significantly reducing simulation time, particularly for electrically large structures. I will demonstrate how these techniques can efficiently simulate large lens antennas, radomes with integrated arrays, and mutual coupling between sources. This technique has been used to compute radiation patterns, gain, directivity, and radiation efficiency. Its versatility has been demonstrated, proving highly accurate for arrays, as well as geodesic and dielectric lens antennas.
Supported by International Exchange Program of National
Institute of Information and Communications Technology (NICT)
