Combinaison de puissance hyperfréquence à faibles pertes et compacte

Abstract : This PhD thesis deals with planar architecture design development of low loss and compact power combiner for solid-state high power amplification in X-band. The design is based on the study of innovative multilayer air dielectric stripline transmission structures. A reliable printed circuit process allows to obtain low loss, compact and replicable stripline structures. Electromagnetic FEM and thermal studies are proposed to evaluate transmission structures performances in X-band. Two compact and scalable structures were developed and may be integrated into complex multilayer systems. Finally a cooling system with periodic ceramic contacts is developed to improve the power handling capability of these stripline structures up to 50 W. The study, development and benchmark of these stripline structures demonstrated their compactness and low loss behaviour. Ultimately, these attributes make them excellent candidates for high power solid-state emitters.
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Sebastien Bonnet. Combinaison de puissance hyperfréquence à faibles pertes et compacte. Electronique. Université de Limoges, 2014. Français. ⟨NNT : 2014LIMO0072⟩. ⟨tel-01171759⟩

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