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On low-fidelity models for variable-fidelity simulation-driven design optimization of compact wideband antennas
Abstract
The paper addresses simulation-driven design optimization of compact antennas involving variable-fidelity electromagnetic (EM) simulation models. Comprehensive investigations are carried out concerning selection of the coarse model discretization density. The effects of the low-fidelity model setup on the reliability and computational complexity of the optimization process are determined using a benchmark set of three ultra-wideband antennas designed for the best matching and for the minimum size. The optimization algorithm of choice is trust-region gradient search with low-fidelity model correction realized through frequency scaling and multiplicative output space mapping. The results indicate that appropriate low-fidelity model setup can be assessed using a correlation analysis based on the selected characteristic points of the antenna responses and sparsely allocated test designs, and the results are consistent across the considered benchmark set.
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Authors (3)
-
Sigmar Unnsteinsson
- Reykjavik University
Cite as
Full text
- Publication version
- Accepted or Published Version
- License
- Copyright (2018 Warsaw Univ. of Technology, IEEE)
Keywords
Details
- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- 2018 22nd International Microwave and Radar Conference (MIKON) strony 1 - 4
- Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Kozieł S., Unnsteinsson S., Bekasiewicz A.: On low-fidelity models for variable-fidelity simulation-driven design optimization of compact wideband antennas// 2018 22nd International Microwave and Radar Conference (MIKON)/ : , 2018, s.1-4
- DOI:
- Digital Object Identifier (open in new tab) 10.23919/mikon.2018.8404991
- Verified by:
- Gdańsk University of Technology
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