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Design-Oriented Constrained Modeling of Antenna Structures

Abstrakt

Fast surrogate models are crucially important to reduce the cost of design process of antenna structures. Due to curse of dimensionality, standard (data-driven) modeling methods exhibit serious limitations concerning the number of independent geometry parameters that can be handled but also (and even more importantly) their parameter ranges. In this work, a design-oriented modeling framework is proposed in which the surrogate is constructed in the region of interest defined by a set of reference designs, optimized with respect to user-selected figures of interest (e.g., operating frequencies, substrate permittivity, etc.). The model domain is spanned by the simplexes obtained by triangulation of the reference designs, further extended into their orthogonal complements. Constraining the surrogate model domain this way allows for considerable reduction of the number of training data samples necessary to build the model, as compared to the traditional approach where the sampling is normally performed over a hypercube defined by the lower/upper bounds of the antenna parameters. Our considerations are illustrated using two examples: a UWB monopole, and a dual-band patch antenna.

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Informacje szczegółowe

Kategoria:
Aktywność konferencyjna
Typ:
publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Tytuł wydania:
12th European Conference on Antennas and Propagation (EuCAP 2018) strony 694 - 699
Język:
angielski
Rok wydania:
2018
Opis bibliograficzny:
Kozieł S., Sigurosson A.: Design-Oriented Constrained Modeling of Antenna Structures// 12th European Conference on Antennas and Propagation (EuCAP 2018)/ : , 2018, s.694-699
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1049/cp.2018.1053
Weryfikacja:
Politechnika Gdańska

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