Offre de thèse à RENNES - Institut Foton et IETR (Institut d’Electronique et de Télécommunications de Rennes)

Sujet de thèse :

 

PHOTOMIXING ANTENNA ARRAYS FOR TERAHERTZ WIRELESS COMMUNICATIONS

The overall objective of this thesis will be to develop sub‐THz front‐ends by photonic generation with several disruptive proofs of concepts at international level: - One of the first high‐gain photomixing antenna array with broad bandwidth. We will investigate the integration of UTC‐photodiodes with planar wideband antennas. Special attention will be paid to find the most appropriate materials and fabrication techniques for these arrays. - The developed photomixing arrays will also provide beam steering capabilities. By bringing one fiber to each photodetector, it is possible to control the phase of each element with true time delay and provide either beam steering or multiple beams. - Implement currently developed dual frequency optical sources to achieve the sub‐THz carrier compatible with photo‐mixer arrays. - Last but not least, the realized prototypes will be measured at IETR/Institut Foton facilities, and real‐time high data rates over medium or long distances in point‐to‐multipoint scenarios.

 

Contacts

To apply please send your motivation letter, CV, and recommendation letters (optional) to:

Prof. Mehdi ALOUINI - Email: mehdi.alouini@univ‐rennes1.fr Institut Foton, Université de Rennes 1, France.

Dr. David GONZÁLEZ OVEJERO - Email: david.gonzalez‐ovejero@univ‐rennes1.fr IETR, CNRS, France.

Prof. Ronan SAULEAU - Email: ronan.sauleau@univ‐rennes1.fr IETR, Université de Rennes 1, France.

Dr. Cyril PARANTHOEN - Email: Cyril.Paranthoen@insa‐rennes.fr Institut Foton, INSA Rennes, France

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