Abstract
In this chapter, we formulate and discuss several surrogate-based optimization techniques and algorithms that may be useful for computationally efficient antenna optimization. All methods presented here exploit variable-fidelity EM simulations. In particular, in order to optimize the high-fidelity EM model R f of the antenna structure under consideration, an auxiliary low-fidelity model R c is utilized that is normally based on coarse-discretization EM evaluation of the same structure. Under suitable correction, the low-fidelity model provides reliable predictions regarding the improved design of the high-fidelity one. The methods of setting up the low-fidelity model are elaborated in Chap. 5. A discussion of optimization techniques is preceded, in Sect. 4.1, by outlining challenges of surrogate-based antenna design. Sections 4.2–4.7 contain formulation of specific methodologies. Applications for the design optimization of various antenna structures are covered in Chaps. 6–11.
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Koziel, S., Ogurtsov, S. (2014). Methodologies for Variable-Fidelity Optimization of Antenna Structures. In: Antenna Design by Simulation-Driven Optimization. SpringerBriefs in Optimization. Springer, Cham. https://doi.org/10.1007/978-3-319-04367-8_4
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DOI: https://doi.org/10.1007/978-3-319-04367-8_4
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