"Design and development of flexible printed circuits for filtering and adaptation of radio frequency electromagnetic waves".
Alejandro NIEMBRO MARTIN
Friday, October 9, 2015 at 14:00
Abstract : Nowadays wireless communication systems are more and more present in our lives, and with them, electromagnetic waves associated to them. A need of products capable to control the range of the network has appeared, for data security reasons, for data rate increase in case of network interferences or for health reasons. On the opposite, in other cases, improving the transmission of these waves is desired. For instance, in new construction or renovated buildings, energy saving windows allows having more efficient buildings thermal speaking. Unfortunately, those windows also block radiofrequencies, including mobile phone signals. The aim of this thesis is the design and development of filtering structures printed on flexible substrate. First, stop band selective filtering solutions are proposed in order to block as much as possible transmission waves, for instance, WiFi in between different rooms of the same building. Secondly, a solution to improve electromagnetic wave transmission through energy saving windows is proposed. In addition to these studies, a characterization system for testing these FSS structures has been developed during this thesis work.
Members of the jury : Tan Phu VUONG - Supervisor Emmanuel PISTONO - Co-supervisor Pierre LEMAITRE-AUGER - Co-supervisor Guy EYMIN-PETOT-TOURTOLLET - Co-supervisor Hafdallah HABIBA OUSLIMANI - Rapporteur Philippe BESNIER - Rapporteur Elodie RICHALOT - Reviewer Ke WU - Reviewer
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Thesis prepared in the laboratory : UMR 5130 IMEP-LaHC (Institut de Microélectronique,Electromagnétisme,Photonique –Laboratoire Hyperfréquences et Caractérisation ), supervised by Tan Phu VUONG, Supervisor and Pierre LAMAITRE-AUGER Co-supervisor