Low-Cost Modeling of Microwave Components by Means of Two-Stage Inverse/Forward Surrogates and Domain Confinement - Publication - Bridge of Knowledge

Search

Low-Cost Modeling of Microwave Components by Means of Two-Stage Inverse/Forward Surrogates and Domain Confinement

Abstract

Full-wave electromagnetic (EM) analysis is one of the most important tools in the design of modern microwave components and systems. EM simulation permits reliable evaluation of circuits at the presence of cross-coupling effects or substrate anisotropy, as well as for accounting for interactions with the immediate environment. However, repetitive analyses required by EM-driven procedures, such as parametric optimization or statistical analysis, may entail considerable computational expenditures, often prohibitive. Tackling the high-cost issue fostered the shift toward the incorporation of fast replacement models, including both physics-based surrogates and data-driven ones. While the latter is more popular and versatile, the construction of reliable approximation metamodels for microwave components is hindered by the curse of dimensionality and nonlinearity of system responses. The recent performance-driven modeling methodologies are capable of alleviating these difficulties by confining the surrogate domain to a vicinity of the optimum design manifold (i.e., the region that contains high-quality designs rather than the entire parameter space). Although setting up the model in a constrained domain requires small amounts of training data, domain definition itself requires a set of preoptimized reference designs, acquisition of which is an expensive endeavor. This work proposes a novel approach, which replaces the reference designs with a small set of random observables, thereby considerably reducing the overall cost of the model setup. Comprehensive verification involving several miniaturized microstrip structures demonstrates that our methodology is competitive to performance-driven frameworks both in terms of modeling accuracy and computational efficiency with an average savings of around 80%.

Citations

  • 2 5

    CrossRef

  • 0

    Web of Science

  • 2 2

    Scopus

Cite as

Full text

download paper
downloaded 15 times
Publication version
Accepted or Published Version
DOI:
Digital Object Identifier (open in new tab) 10.1109/TMTT.2021.3112156
License
Copyright (2021 IEEE)

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES no. 69, pages 1 - 14,
ISSN: 0018-9480
Language:
English
Publication year:
2021
Bibliographic description:
Kozieł S., Pietrenko-Dąbrowska A., Ubaid U.: Low-Cost Modeling of Microwave Components by Means of Two-Stage Inverse/Forward Surrogates and Domain Confinement// IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES -Vol. 69,iss. 12 (2021), s.1-14
DOI:
Digital Object Identifier (open in new tab) 10.1109/tmtt.2021.3112156
Verified by:
Gdańsk University of Technology

seen 61 times

Recommended for you

Meta Tags