Computationally Efficient Multi-Objective Optimization of and Experimental Validation of Yagi-Uda Antenna

Adrian Bekasiewicz, Slawomir Koziel, Leifur Leifsson

2014

Abstract

In this paper, computationally efficient multi-objective optimization of antenna structures is discussed. As a design case, we consider a multi-parameter planar Yagi-Uda antenna structure, featuring a driven element, three directors, and a feeding structure. Direct optimization of the high-fidelity electromagnetic (EM) antenna model is prohibitive in computational terms. Instead, our design methodology exploits response surface approximation (RSA) models constructed from sampled coarse-discretization EM simulation data. The RSA model is utilized to determine the Pareto optimal set of the best possible trade-offs between conflicting objectives. In order to alleviate the difficulties related to a large number of designable parameters, the RSA model is constructed in the initially reduced design space, where the lower/upper parameter bounds are estimated by solving appropriate single-objective problems resulting in identifying the extreme point of the Pareto set. The main optimization engine is multi-objective evolutionary algorithm (MOEA). Selected designs are subsequently refined using space mapping technique to obtain the final representation of the Pareto front at the high-fidelity EM antenna model level. The total design cost corresponds to less than two hundred of EM antenna imulations.

Paper Citation

in Harvard Style

Bekasiewicz A., Koziel S. and Leifsson L. (2014). Computationally Efficient Multi-Objective Optimization of and Experimental Validation of Yagi-Uda Antenna . In Proceedings of the 4th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SDDOM, (SIMULTECH 2014) ISBN 978-989-758-038-3, pages 798-805. DOI: 10.5220/0005136607980805

in Bibtex Style

@conference{sddom14,
author={Adrian Bekasiewicz and Slawomir Koziel and Leifur Leifsson},
title={Computationally Efficient Multi-Objective Optimization of and Experimental Validation of Yagi-Uda Antenna},
booktitle={Proceedings of the 4th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SDDOM, (SIMULTECH 2014)},
year={2014},
pages={798-805},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005136607980805},
isbn={978-989-758-038-3},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 4th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SDDOM, (SIMULTECH 2014)
TI - Computationally Efficient Multi-Objective Optimization of and Experimental Validation of Yagi-Uda Antenna
SN - 978-989-758-038-3
AU - Bekasiewicz A.
AU - Koziel S.
AU - Leifsson L.
PY - 2014
SP - 798
EP - 805
DO - 10.5220/0005136607980805