Centre National De La Recherche Scientifique

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Camille Jouvaud

Mathias Fink

Christophe Delaveaud

Mickael Tanter

Hervé Aubert

Benoit Larrat

Luis-Felipe Fonseca-Dias

Mohamed Redha Abdeddaim

Julien Derosny

Benoît Larrat

A device for measuring a physical quantity, including at least a transceiver unit for electromagnetic waves, an antenna-sensor including a sensor integrated into a target antenna having at least one excitation port, the antenna-sensor having a variable impedance with electromagnetic transduction, the measuring device being configured, per predetermined frequency band and independently of the angular difference between the transmission and reception of waves, for measuring the electromagnetic response of the antenna-sensor at least from an ellipticity rate of an electromagnetic field backscattered by the antenna-sensor, the ellipticity rate characterizing the polarization of the electromagnetic field configured to be measured by the transceiver unit, the electromagnetic response being representative, by electromagnetic transduction, of the at least one physical quantity to be measured.

Device for measuring at least one physical quantity and related determination method

The invention relates to a radio-frequency antenna system including at least one radio-frequency transmitter and/or receiver and resonators which are mutually electro-magnetically hybridised, coupled with the radio-frequency transmitter and/or receiver, and electrically insulated from one another and from the radio-frequency transmitter and/or receiver.

Radio-frequency antenna system based on mode hybridisation for a nuclear magnetic resonance device

Growing community of inventors

Paris, France

Camille Jouvaud