ASTRID-Maturation - Accompagnement spécifique des travaux de recherches et d'innovation Défense : Maturation et Valorisation

Ultimate electric field sensors based on electro-optically tunable photonic crystals – EsencyalMAT

Submission summary

On February 28, theMinister of Armies Florence Parly launched the CUGE program: Universal Electronic Warfare Capacity. This program will allow by 2025 to equip the French forces of electronic warfare of 3 spy planes of type business jets Falcon. The goal is threefold: Scrambling, Research and Electromagnetic Identification. Because today, these electronic weapons are essential on the military field of operation. In the first place, of course, is Syria, which makes American General Raymond Thomas say at the Geoint 2018 Symposium that Syria is "the most aggressive electronic warfare environment on the planet".
here is therefore a clear dual need to develop innovative RF sensor technologies to improve the duo weight / consumption of antennas, their discretion by addressing all or part (the different bands) of the electromagnetic spectrum.

The EsentialalMAT project proposes in this respect a maturation of the non-metallic RF electric field sensors initiated in the Astrid Esencyal project:
- By steering Esencyal's technology towards Defense applications and markets addressed by Thales.
- By addressing some problems of industrialization of the sensor developed during Astrid Esencyal.

The technology developed in this project will therefore provide a French solution for discrete sensors that can ultimately be integrated into light solutions for the detection of electromagnetic waves whether in a RADAR receiving antenna or in a reception device. Electronic warfare.

The project will be structured around 3 main axes:
• Sensitivity and bandwidth of the nanophotonic sensor
• Ability to interrogate multiple sensors simultaneously while keeping the relative RF phase between the two sensors.
• Reduction of production costs

Antennas are an essential component of the electromagnetic wave detection chain. They have been used since the Second World War, and their architecture is obviously adapted to their frequency coverage (up to 50 GHz), and especially to the RF frequency of the carrier wave. Also, on some antennas the low frequency may be close to ten Hz which greatly increases the size of the antenna. Then, these antennas are generally made of conductive materials, which leads to disturbances on the field to be measured, which for military applications, greatly affects the electromagnetic stealth.
Finally, antennas are usually heavy and can represent an important energy sink for the systems.

In the long term, the simultaneous interrogation of several sensors of this ASTRID Maturation project should allow to realize light and dielectric antennas whose main applications would be:
- Aerial surveillance (Radar)
- Defense and security of property (Military Radar, listening to the EM spectrum, perimeter intrusion alarm)
- Radio Reception
- Strong field measurement without local disturbance (personal safety, calibration)

Project coordinator

Madame Nadège Courjal (Franche Comté electronique, mécanique, thermique, optique-sciences et technologies, UMR6174)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.


FEMTO-ST Franche Comté electronique, mécanique, thermique, optique-sciences et technologies, UMR6174

Help of the ANR 499,713 euros
Beginning and duration of the scientific project: January 2020 - 36 Months

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