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Theses

Modélisation et caractérisation de nouveaux conducteurs pour la connectique hyperfréquence

Abstract : This thesis is part of a project FUI ”Plug InNano”. Objective of the project is offering a new composite conductor, instead of Gold used as a coating conductor in microwave and automotive connectors. An analytical model of the microwave signal behavior has been achieved in composite conductive materials according to their microstructure, especially the case of a multilayer structure. A microwave characterization was performed by measuring the quality factors of microwave coplanarresonators (half-wavelength line and ring), made in the laboratory, to determine the effective electrical conductivity of this new conductor. In parallel, 3D finite element simulations were conducted, and analytical models for losses calculation have been developed to compare the theoretical and experimental results. Value of the electrical conductivity is extracted using the following methods: abacus of quality factors, and inverse calculation by losses analytical models. A new fretting structure (crossed cylinder), suitable for microwave, has been implemented for the characterization of conductor coatingsin fretting environment. Several materials were measured and characterized: noble as Gold and Silver, and non-noble as Tin, white Bronze and Brass. Variation of the microwave contact resistance, as a function of fretting cycles, is measured in the same time with the DC resistance. A damage criterion of a contact for RF signal is defined by 0.1 dB of attenuation
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https://tel.archives-ouvertes.fr/tel-01762150
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Submitted on : Monday, April 9, 2018 - 4:34:11 PM
Last modification on : Monday, January 13, 2020 - 5:46:07 PM

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  • HAL Id : tel-01762150, version 1

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Bilal Benarabi. Modélisation et caractérisation de nouveaux conducteurs pour la connectique hyperfréquence. Optique / photonique. Université de Lyon, 2016. Français. ⟨NNT : 2016LYSES001⟩. ⟨tel-01762150⟩

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