Antenna design using variable-fidelity electromagnetic simulations

Issue title: Selected papers from the 12th International Workshop on Optimization and Inverse Problems in Electromagnetism (OIPE 2012)

Guest editors: Luc Dupré and Guillaume Crevecoeur

Article type: Research Article

Authors: Koziel, Slawomir^{a; *} | Ogurtsov, Stanislav^a

Affiliations: [a] School of Science and Engineering, Engineering Optimization and Modeling Center, Reykjavik University, Reykjavik, Iceland

Correspondence: [*] Corresponding author: Slawomir Koziel, School of Science and Engineering, Engineering Optimization and Modeling Center, Reykjavik University, Menntavegur 1, 101 Reykjavik, Iceland. E-mail: koziel@ru.is

Abstract: Design optimization of antennas is challenging, in most cases it involves electromagnetic (EM) simulations. High-fidelity simulation is computationally expensive and, therefore, employing EM solver in an optimization loop may be prohibitive. In this paper, we discuss optimization approaches that exploit coarse-discretization EM simulations as a low-fidelity model, and allow us to locate the optimum design of the antenna at a low computational cost. Some practical issues, including the importance and selection of the model fidelity are also discussed.

Keywords: Antenna design, EM simulation, computer-aided design, surrogate model, response correction

DOI: 10.3233/JAE-131726

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 43, no. 1-2, pp. 169-183, 2013