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Design-oriented computationally-efficient feature-based surrogate modelling of multi-band antennas with nested kriging
Abstract
Design of modern antenna structures heavily depends on electromagnetic (EM) simulation tools. EM analysis provides reliable evaluation of increasingly complex designs but tends to be CPU intensive. When multiple simulations are needed (e.g., for parameters tuning), the aggregated simulation cost may become a serious bottleneck. As one possible way of mitigating the issue, the recent literature fosters utilization of faster representations, or surrogates, of the system at hand. Notwithstanding, conventional models are severely affected by the curse of dimensionality. In practice, modelling of antenna structures described by no more than a few parameters over narrow parameter ranges is possible. In the context of the structural complexity of modern antennas, this is hardly acceptable. This paper presents a novel technique for cost-efficient design-oriented modelling of multi-band antennas. Our approach integrates a recently reported nested kriging framework and the response feature technology. This combination enables rendering of reliable surrogates valid within broad ranges of geometry parameters while using small training data sets. Benchmarking against conventional modelling methods demonstrates superiority of the proposed framework in terms of both the predictive power of the surrogate and its setup cost. Design applications for antenna optimization are discussed as well.
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
no. 120,
pages 1 - 8,
ISSN: 1434-8411 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Kozieł S., Pietrenko-Dąbrowska A.: Design-oriented computationally-efficient feature-based surrogate modelling of multi-band antennas with nested kriging// AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS -Vol. 120, (2020), s.1-8
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.aeue.2020.153202
- Verified by:
- Gdańsk University of Technology
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