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Theses

Méthodes de caractérisation en bruit des dispositifs radiofréquences multi accès

Abstract : In any microwave telecommunication system, noise performance is a very important criterion for receiving chain devices. Knowledge of the internal noise sources of the components and their correlation makes it possible to predict and optimize the noise performance of a receiver. This theme is the subject of numerous studies and publications around the world. The work proposed in this thesis consists in evaluating the noise performance of a multiport device (N-ports) in the most general sense and without any approximation, based on a new method of extracting the entire noise wave correlation matrix that contains all the information relating to noise performance. This new method is based on the use of noise wave formalism and the scattering matrix[S], the extraction results are validated by calculations and measurements on a two-port device (passive and active) and on a 4-port in standard and mixed mode (passive and active).
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  • HAL Id : tel-02520029, version 1

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Ramzi Ghazel. Méthodes de caractérisation en bruit des dispositifs radiofréquences multi accès. Electronique. Université de Limoges, 2019. Français. ⟨NNT : 2019LIMO0122⟩. ⟨tel-02520029v1⟩

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