Missions

The researcher will be in charge the development of flexible waveguides.

Activités

Definition of waveguide architectures
Simulation of waveguides
Materials and waveguides characterizations.
Writing of simulation and test reports
Participation to define demonstrators
Interaction with project partners for manufacturing aspects

Compétences

Be able to work in a team
Master English and French
Know electromagnetic simulation tools (CST, HFSS for example). A general knowledge of measurement techniques, characterizations of high-frequency systems will be welcome.
Knowledge of dielectric materials will be appreciated.

Contexte de travail

The researcher will carry out his missions within the THz Photonics group of the IEMN under the supervision of Ludovic BURGNIES and Guillaume DUCOURNAU

Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.

Contraintes et risques

Working in a standard laboratory and SME environment does not involve any particular risk.

Informations complémentaires

Researcher : Development of flexible waveguides operating in the submillimeter frequency band 140-220 GHz

Context
With the technological progress from 1980 to 2020, the millimeter waves are currently considered as a realistic solution to overcome the challenge of new high speed communications in the high millimeter-waves bands. With a communication rate reaching up to 10-50 Gbits/s, applications of millimeter waves have been spread out to automotive radar, high speed point-to-point communication in Wireless Local Area Networks, high resolution video broadcasting, and as a generality to all communication systems where a very high data quantity has to be shared and transmitted. Then, it is required to develop efficient electromagnetic connections and transitions, cables and waveguides able to support millimeter and sub-millimeter waves operating in the standardized bands 75-110 GHz and 140-220 GHz. Especially, a development of flexible waveguides supporting sub-millimeter waves are of prime importance for systems dedicated to telecoms, aerospace, defense or medical applications. But the transition issues of a flexible waveguide with conventional waveguides still need to be addressed to improve the system performance.

Job Description
In the framework of a scientific project with industrials, the Post-doc researcher will be responsible for the design of flexible waveguides and transitions with conventional waveguides operating in the 140-220 GHz frequency band. The flexible waveguides will be mainly dielectric waveguides involving a possible protective cladding in view of applications. This first part of the objectives will aim to optimize the geometry and the composition of the flexible waveguides to improve the performance. A second objective will be to study different solutions of interconnections between flexible and conventional waveguides. With no restriction, studies should evolve to multi- or direct-transitions as well as to transitions by capacitive coupling. For all designs of flexible waveguides and transitions, it will be necessary to find manufacturable solutions in connection with the industrial partners of the project. Finally, the researcher could be involved in the experimental part of the project for evaluating the flexible waveguide and transition performances.

Candidate profile
You have a PhD in electronics or in applied physics with an expertise in electromagnetic waves, if possible in millimeter and sub-millimeter bands.
A significant experience in simulation softwares as CST and/or HFSS is required.
An extensive knowledge in electromagnetic waves is expected, and a knowledge in materials.
Ideally, you have already worked in a similar subject.

Employment situation and conditions
Type of contract: Post-doctoral position over 12 months extendable up to 12 months (total duration up to 24 months).
Location: IEMN Institute in Villeneuve d'Ascq (France), https://www.iemn.fr/
Annual gross salary: ~35.2k€/year according to the academic salary scales and according to the profile and experience of the candidate.

Application
Please, submit a CV and a cover letter exclusively in the CNRS portal.
All the files have to be submitted in a pdf format and the cover letter has to expand your experience.
Please, limit to 2Mo maximum the totality of the submitted files.