Polymère souple pour antenne patch électriquement accordable en bande X : conception et caractérisations

Abstract : In communication systems, smart antennas with large frequency tunability (agility) have been gaining worldwide attention over the past few years due to the proliferation of global wireless communication standards in close proximity to one another. However, conventional solutions use electronic components which induce additional costs and make the system more complicated. Moreover, the electronic devices have moved from rigid to flexible dielectric substrates to reduce the cost and to obtain stretchability and conformability properties. The goal of this thesis is to put together these two topics. The chosen original approach consists of the mechanical reconfiguration of antenna patch printed on a soft membrane substrate with electrostatic actuation in X band, at around 10 GHz. Moreover, a new polymeric substrate was employed in this structure, the polyurethane (PU). Firstly, the technological processes required to realize the antenna patch on the PU substrate were developed. Then, the dielectric properties of polyurethane films were measured on a large frequency band in order to define the antenna patch dimensions using high frequency simulations. Finally, the first antennas patch realized and characterized have a figure of merit Frequency tunability/Voltage higher than the state of the art. Preliminary studies were also carried out to explore various feasible ways for improved the antenna systems performances.
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Submitted on : Wednesday, December 9, 2015 - 11:48:54 AM
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  • HAL Id : tel-01240484, version 1

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Samuel Baron. Polymère souple pour antenne patch électriquement accordable en bande X : conception et caractérisations. Micro et nanotechnologies/Microélectronique. Université de Nantes, 2015. Français. ⟨tel-01240484⟩

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