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Contributions to telecommunications and instrumentation
Emmanuel Géron Crédits : ESPCI ParisTechManufacturers of telecommunications systems are constantly looking for improvements in their systems and especially in microwave modules. Development of circuits in hybrid technology combined
with the control of all interactions between the different functional subsystems can improve consumption or manufacturing reproducibility. Thorough knowledge of complex telecommunication standards allows in many cases to introduce additional electronic circuits in order to provide interesting innovations for example to the data flow, or to the time needed to establish connections. This is the case for multiple access point and adaptive antennas. The latter by the optimization of their radiation pattern allows optimization of the coverage areas and reduction of the radiated power which is a public health issue.
Metamaterials, in their one-dimensional form, are also a way to improve or develop new functional microwave circuits such as microwave coupler with a variable coupling rate.
Systems and techniques developed in the context of telecommunications can be adapted to resolve issues related to instrumentation. Instrumental or theoretical knowledge is highly transferable to realise physical measurements. This is the case for measuring moisture in wood chips or positioning a vehicle on the road. Techniques used for microwave telecommunications can also be adapted to overcome the resolution limit of the space charge measurement in insulating materials.