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Études de nouvelles architectures d’antennes hybrides reconfigurables

Abstract : The works presented in this thesis focus on the study of reduced BFN reconfigurableantennas (ARFFR). The concept of ARFFR generalizes the works of Harrington onelectronically steerable parasitic array radiator to regular arrays composed by excited elementsand parasitic ones. This approach aims to simplify the BFN of these antennas in order todemocratize competitive reconfigurable antenna arrays. Thanks to the use of reactive loadsconnected to parasitic elements, controls are maintained to manage both beam forming andactive matching. This thesis aims to assess the performances of the ARFFR and to developantenna architectures which permit to attain complex functions. The scope of application ofARFFR is defined and a design methodology is proposed. This work details the principle ofARFFR concept and analyses the potentialities of a Ku-band ARFFR. The digital approachused to design ARFFR is validated thanks to a demonstrator. Finally, the potentialities of thisconcept are refined by the study of orthogonal bipolarization.
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Jorick Milbrandt. Études de nouvelles architectures d’antennes hybrides reconfigurables. Electronique. Université de Limoges, 2019. Français. ⟨NNT : 2019LIMO0121⟩. ⟨tel-02518367⟩

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