Razvan-Cristian Marin defended his Ph.D. thesis

Congratulations to Cristian !

He defended his Ph.D. work on November 23rd on “Highly-Parallel Digital RF Transmitters with Switch-Mode Power Amplifier and Embedded Band Filter in 28nm FD-SOI CMOS”

Knock if you would like more info !


CIFRE PhD position with STMicroelectronics

Subject : Study and demonstration of highly-integrated FDSOI CMOS digital transmitters for emerging 802.11ah IoT standards

The emerging Internet of Things (IoT) communication markets demand wireless networking standards that operate in the sub-1 GHz spectrum, providing long-range and low-power operation, such as 802.11ah and 802.11af. In the collaborative works ST-IEMN, digital transmitters has been recently targeted to replace traditional RF architectures, due to their high configurability, efficiency and integration. This thesis subject proposes to demonstrate entirely digital transmitter architectures to efficiently target sub-1 GHz communication systems. The proposed works will leverage the use of UTBB FDSOI unique features, aiming state-of-the-art performance.

 Advanced CMOS technologies offer very nice switches that can enable wideband and highly-integrated digital transmitters relying on timing rather than voltage levels. Features of the 28nm FDSOI technology also provide an additional design space to introduce configurability in digital transmitters, providing a good opportunity to address the bandwidth and carrier frequency configurability demands. This work will follow up on previous PhD works on digital transmitters in the ST-IEMN common lab. Potential solutions to be investigated include time-interleaved delta-sigma modulation, FIR-DACs, switched capacitor amplifier and digital RF pulse position and width modulation.

Please contact antoine.frappe@yncrea.fr for more details

Link to IEMN PhD thesis offers


Cristian Marin : Second prize of the Research Council of the Catholic University de Lille

Cristian Marin obtained the second prize from the Research Council at the “Université Catholique de Lille”, in which the goal is to derive the societal impact of the PhD work.

He is working on digital transmitters and would like to improve embedded devices so that we are not running out of battery (but this shouldn’t affect the amount of data we are sharing !)

Congratulations!!! and we are eagerly waiting for the results on the prototypes !!!

Please find here a link to an interview following the contest. This is an emission called “Boulevard de la Recherche”.



Valeria Lacatena PhD defence June 1st

Valeria Lacatena will defend her PhD work “Fabrication And Thermal Conductivity Characterization Of Phononic Engineered Silicon Membranes For Thermoelectric Applications” June 1st at 10:30 in the IEMN amphitheater. You are welcome to join this event to encourage her !


Jury :
M. Lionel BUCHAILLOT, Directeur de recherche CNRS, IEMN
Mme. Sylvie HEBERT, Directeur de recherche CNRS,CRISMAT
M. Sebastian VOLZ, Directeur de recherche CNRS, SUPELEC
M. Pierre-Olivier CHAPUIS, Chargé de recherche au CNRS, CETHIL
M. Stéphane MONFRAY, Ingénieur R&D, STMicroelecronics
M. Jean-François ROBILLARD, Enseignant Chercheur, ISEN
M. Thomasz SKOTNICKI, Directeur R&D, STMicroelecronics
M. Emmanuel DUBOIS, Directeur de recherche CNRS, IEMN


IEEE International Wireless Symposium 2016

WS1_picture   Great panel for a very nice workshop on “disruptive transceivers for next generation wireless access” during IWS 2016 in Shanghai.

Hope you enjoyed !!


The workshop was organized by Yann Deval and François Rivet from University of Bordeaux and included presentations by Ramesh Harjani (University of Minnesota),  Patrick Reyneart (KU Leuven), Yoan Veyrac (University of Bordeaux), Antoine Frappé (ISEN-Lille) and Baptiste Grave (Stanford University).

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