Quasi-Global Optimization of Antenna Structures Using Principal Components and Affine Subspace-Spanned Surrogates - Publikacja - MOST Wiedzy

Wyszukiwarka

Quasi-Global Optimization of Antenna Structures Using Principal Components and Affine Subspace-Spanned Surrogates

Abstrakt

Parametric optimization is a mandatory step in the design of contemporary antenna structures. Conceptual development can only provide rough initial designs that have to be further tuned, often extensively. Given the topological complexity of modern antennas, the design closure necessarily involves full-wave electromagnetic (EM) simulations and—in many cases—global search procedures. Both factors make antenna optimization a computationally expensive endeavor: population-based metaheuristics, routinely used in this context, entail significant computational overhead. This letter proposes a novel approach that interleaves trust-region gradient search with iterative parameter space exploration by means of local kriging surrogate models. Dictated by efficiency, the latter are rendered in low-dimensional subspaces spanned by the principal components of the antenna response Jacobian matrix, extracted to identify the directions of the maximum (frequency-averaged) response variability. The aforementioned combination of techniques enables quasi-global search at the cost comparable to local optimization. These features are demonstrated using two antenna examples as well as benchmarking against multiple-start local tuning.

Cytowania

  • 2 8

    CrossRef

  • 0

    Web of Science

  • 2 7

    Scopus

Cytuj jako

Pełna treść

pobierz publikację
pobrano 32 razy
Wersja publikacji
Accepted albo Published Version
Licencja
Creative Commons: CC-BY otwiera się w nowej karcie

Słowa kluczowe

Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
IEEE Access nr 8, strony 50078 - 50084,
ISSN: 2169-3536
Język:
polski
Rok wydania:
2020
Opis bibliograficzny:
Tomasson J., Kozieł S., Pietrenko-Dąbrowska A.: Quasi-Global Optimization of Antenna Structures Using Principal Components and Affine Subspace-Spanned Surrogates// IEEE Access -Vol. 8, (2020), s.50078-50084
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1109/access.2020.2980057
Weryfikacja:
Politechnika Gdańska

wyświetlono 123 razy

Publikacje, które mogą cię zainteresować

Meta Tagi