Conception de circulateurs et isolateurs pour des applications spatiales : nouvelles technologies d'intégration

Abstract : The goal of this PhD thesis is to explore new technologies that make possible to improve the integration of isolators in radiofrequency chain of satellites. These components are especially used to control matching of amplifiers.We propose two ways of producing these isolators. At first, ferricomposite materials are studied to design low-cost isolators at Kuband.Then, we studied pre-oriented strontium or barium hexaferrites to design self-biased components (without magnets) for Q and Ka band frequencies.
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Submitted on : Thursday, October 3, 2019 - 3:56:07 PM
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Nathan Noutehou. Conception de circulateurs et isolateurs pour des applications spatiales : nouvelles technologies d'intégration. Electronique. Université de Bretagne occidentale - Brest, 2019. Français. ⟨NNT : 2019BRES0033⟩. ⟨tel-02304957⟩

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