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Theses

Conception électromagnétique de circuits hyperfréquences par optimisation de formes paramétrées par des courbes de Bézier

Ali Dia 1 
Abstract : The research work presented in this thesis concerns the computer-aided design of microwave components, more precisely the innovative shape optimization methods, the development and improvement of computer-aided design tools dedicated to the implementation of passive microwave functions and the improvement of the electrical specifications of components. Optimization methods implemented in CAD tools allow to improve the geometrical dimensions of a structure, thus limiting the design space and improving the performance of devices. The contour and topology optimization approaches address this issue and push the design limits. The drawback of most of the existing techniques in the literature is the large number of variables required to parameterize the model, thus increasing the computational time required to solve the problem. In this perspective, we have proposeda new contour optimization method, based on a polynomial parameterization defined by Bézier curves, allowing to reduce the number of variables used to describe the shape of the structure. The proposed method isused for the shape optimization of components loaded in microwave filters for the improvement of their response and performance.
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Submitted on : Thursday, September 1, 2022 - 5:41:13 PM
Last modification on : Thursday, September 8, 2022 - 4:03:01 AM

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Ali Dia. Conception électromagnétique de circuits hyperfréquences par optimisation de formes paramétrées par des courbes de Bézier. Electronique. Université de Limoges, 2022. Français. ⟨NNT : 2022LIMO0058⟩. ⟨tel-03767288⟩

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