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Design centering of compact microwave components using response features and trust regions

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dc.contributor.author Pietrenko-Dabrowska, Anna
dc.contributor.author Koziel, Slawomir
dc.date.accessioned 2022-08-26T01:04:40Z
dc.date.available 2022-08-26T01:04:40Z
dc.date.issued 2021-12-18
dc.identifier.citation Pietrenko-Dabrowska , A & Koziel , S 2021 , ' Design centering of compact microwave components using response features and trust regions ' , Energies , vol. 14 , no. 24 , 8550 . https://doi.org/10.3390/en14248550
dc.identifier.issn 1996-1073
dc.identifier.other PURE: 46838912
dc.identifier.other PURE UUID: 530d3c4a-71ce-423a-abc4-ef7156dea33a
dc.identifier.other Scopus: 85121517879
dc.identifier.uri https://hdl.handle.net/20.500.11815/3380
dc.description Funding Information: Funding: This work was supported in part by the Icelandic Centre for Research (RANNIS) Grant 217771, and by National Science Centre of Poland Grant 2018/31/B/ST7/02369. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
dc.description.abstract Fabrication tolerances, as well as uncertainties of other kinds, e.g., concerning material parameters or operating conditions, are detrimental to the performance of microwave circuits. Mit-igating their impact requires accounting for possible parameter deviations already at the design stage. This involves optimization of appropriately defined statistical figures of merit such as yield. Although important, robust (or tolerance-aware) design is an intricate endeavor because manufacturing inaccuracies are normally described using probability distributions, and their quantification has to be based on statistical analysis. The major bottleneck here is high computational cost: for reliability reasons, miniaturized microwave components are evaluated using full-wave electromagnetic (EM) models, whereas conventionally utilized analysis methods (e.g., Monte Carlo simulation) are associated with massive circuit evaluations. A practical approach that allows for circumventing the aforementioned obstacles offers surrogate modeling techniques, which have been a dominant trend over the recent years. Notwithstanding, a construction of accurate metamodels may require considerable computational investments, especially for higher-dimensional cases. This paper brings in a novel design-centering approach, which assembles forward surrogates founded at the level of response features and trust-region framework for direct optimization of the system yield. Formu-lating the problem with the use of characteristic points of the system response alleviates the issues related to response nonlinearities. At the same time, as the surrogate is a linear regression model, a rapid yield estimation is possible through numerical integration of the input probability distributions. As a result, expenditures related to design centering equal merely few dozens of EM analyses. The introduced technique is demonstrated using three microstrip couplers. It is compared to recently reported techniques, and its reliability is corroborated using EM-based Monte Carlo analysis.
dc.format.extent 15
dc.language.iso en
dc.relation.ispartofseries Energies; 14(24)
dc.rights info:eu-repo/semantics/openAccess
dc.subject Design centering
dc.subject Microwave components
dc.subject Response features
dc.subject Robust design
dc.subject Yield optimization
dc.subject Renewable Energy, Sustainability and the Environment
dc.subject Fuel Technology
dc.subject Energy Engineering and Power Technology
dc.subject Energy (miscellaneous)
dc.subject Control and Optimization
dc.subject Electrical and Electronic Engineering
dc.title Design centering of compact microwave components using response features and trust regions
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.3390/en14248550
dc.relation.url http://www.scopus.com/inward/record.url?scp=85121517879&partnerID=8YFLogxK
dc.contributor.department Department of Engineering

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