Etude de commutateurs hyperfréquences bistables à base des matériaux à changement de phase (PCM)

Abstract : The work presented in this manuscript focuses on the design, simulation and realization of new microwave switches structures based on the integration of thin layers of innovative functional materials such as phase change materials (PCM) and phase transition materials. (PTM). The operating principle of these components is based on the change of resistivity present by these materials. We exploited the reversible resistivity change of GeTe of phase change materials family between the two states: amorphous with high resistivity and crystalline with low resistivity to realize a new structure of SPST switch. Then, we have integrated this switch structure on a new structure of DPDT (Double Port Double Throw) switch matrix based on phase change materials for application in satellite payload. We have used the insulatingmetal transition presented by the vanadium dioxide (VO2) of phase transition materials family to realize a new two terminals simple switch structure on a very wide frequency band (100 MHz–220 GHz).
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Submitted on : Thursday, April 11, 2019 - 10:41:07 AM
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Ahmad Hariri. Etude de commutateurs hyperfréquences bistables à base des matériaux à changement de phase (PCM). Electronique. Université de Limoges, 2019. Français. ⟨NNT : 2019LIMO0013⟩. ⟨tel-02096185⟩

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