Publicaciones

• Article dans une revue

Impact of the in situ SiN Thickness on Low-Frequency Noise in MOVPE InAlGaN/GaN HEMTs

M. Rzin, B. Guillet, Laurence Méchin, P. Gamarra, C. Lacam, F Medjdoub, J.-M. Routoure

This article reports on sub-10-nm quater-nary barrier InAlGaN/GaN high electron mobility transistors (HEMTs) grown by metal-organic-vapor-phase-epitaxy (MOVPE) with an in situ SiN passivation layer and an ultra-short gate length of 200 nm. Two batches of HEMTs with two SiN thicknesses (t SiN) of 14...

IEEE Transactions on Electron Devices, 2019, 66 (12), pp.5080-5083. ⟨10.1109/TED.2019.2945296⟩. ⟨hal-02382779⟩

• Communication dans un congrès

Energy-efficient techniques for combating the influence of reactive jamming using Non-Orthogonal Multiple Access and Distributed Antenna Systems

Joumana Farah, Jacques Akiki, Eric Pierre Simon

The aim of this work is to propose new approaches for maximizing the energy efficiency of downlink 5G mobile communication systems, in the presence of a reactive jammer. The concepts of non-orthogonal multiple access (NOMA) and distributed antenna systems (DAS) are exploited to devise joint subband...

Wireless Telecommunications Symposium (WTS 2019), Apr 2019, New York, NY, United States. ⟨10.48550/arXiv.1903.11574⟩. ⟨hal-04542881⟩

• Article dans une revue

Optimization and Comparison between the efficiency of GaNAsSb and GaInNAs single solar cells deposed on GaAs

Wafa Bellil, Abdelkader Aissat, Jean-Pierre Vilcot

In this work we study and optimize the single solar cell efficiency of GaNxAs1-x-ySby and Ga1-xInxNyAs1-y deposed on GaAs. The solar cells are simulated, in the aim to find the best concentration of nitrogen and antimony for GaNxAs1-x-ySby, and indium and nitrogen for Ga1-xInxNyAs1-y which gives us...

Procedia Computer Science, 2019, Procedia Computer Science, 151, pp.1028-1033. ⟨10.1016/j.procs.2019.04.145⟩. ⟨hal-02409552⟩

• Communication dans un congrès

On the impact of the covariance matrix size for spectrum sensing methods:beamforming versus eigenvalues

Kais Bouallegue, Matthieu Crussière, Iyad Dayoub

In this paper, we investigate the impact of the covariance matrix (CM) size of the received signal on the performance of spectrum sensing methods. Our analysis is based on two well-known methods of spectrum sensing (SS), one based on the eigenvalues called maximum-to minimum eigenvalue (MME) and...

24th IEEE Symposium on Computers and Communications (ISCC 2019), Jun 2019, Barcelona, Spain. pp.95-99, ⟨10.1109/ISCC47284.2019.8969741⟩. ⟨hal-03383700⟩

• Article dans une revue

Performance assessment of a small-size ocean wave energy harvester

Yongjie Sang, Bertrand Dubus

A lightweight electromechanical device is studied to harvest energy of ocean waves and supply electrical power to small-size ocean observation equipment such as sonobuoys. It is composed of a magnet fixed to the floating housing which follows the motion of the ocean surface and a moving coil...

MATEC Web of Conferences, 2019, 283, pp.05006. ⟨10.1051/matecconf/201928305006⟩. ⟨hal-02395559⟩

• Communication dans un congrès

Enlarging the Frontiers of Research in the IR/mm Range Using Synchrotron Radiation

J-B. Brubach, B. Langerome, M. Verseils, F. Capitani, T. Souske, Jean-Francois Lampin, S. Eliet, O. Pirali, M. A. Martin-Drumel, Francis Hindle, Gaël Mouret, C. Evain, C Szwaj, E. Roussel, S. Bielawski, T. Timusk, Pascale Roy

Optical probes are among the most important techniques for characterizing new physical states induced by changes of temperature and/or pressure. In link with its high brightness and wide spectral coverage, infrared synchrotron radiation is ideally suited for such studies when the quantity of...

44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2019, Paris, France. pp.1-2, ⟨10.1109/IRMMW-THz.2019.8873937⟩. ⟨hal-04295283⟩

• Communication dans un congrès

Combined Atomic, Microwave and Electron Microscope: A tool for Hybrid Characterization of Nanomaterials

Petr Polovodov, Didier Théron, Gilles Dambrine, Kamel Haddadi

<p>A near-field scanning millimeter-wave microscope (NSMM) integrated in a scanning electron microscope (SMM) is proposed in this discussion. The instrument can provide simultaneously atomic, GHz and electron images of the sample under investigation. Main features of the solution proposed are...

49th European Microwave Conference (EuMC), Sep 2019, Paris, France. ⟨10.5281/zenodo.3550534⟩. ⟨hal-04932434⟩

• Communication dans un congrès

Texturation of lead-free BaTiO₃ based piezoelectric ceramics

Pascal Marchet, Angel Prato, Franck Levassort, Claire Bantignies, Maï Pham-Thi, Ana Borta-Boyon, Anne-Christine Hladky

• Article dans une revue

Conversion between surface acoustic waves and guided modes of a quasi-periodic structured nanobeam

Alexander V Korovin, Yan Pennec, Matteo Stocchi, Davide Mencarelli, Luca Pierantoni, Tapani Makkonen, Jouni Ahopelto, Bahram Djafari-Rouhani

The generation of acoustic waves in structured nanobeams containing optomechanic cavities is a topic of current interest. In this paper, we theoretically study the efficient conversion of surface acoustic waves (SAW) generated on a substrate by an RF electric signal into the acoustic waves of a...

Journal of Physics D: Applied Physics, 2019, 52 (32), pp.32LT01. ⟨10.1088/1361-6463/ab2297⟩. ⟨hal-03138042⟩

• Communication dans un congrès

Power control in parallel symmetric α-stable noise channels

Mauro de Freitas, Malcolm Egan, Laurent Clavier, Anne Savard, Jean-Marie Gorce

Parallel channels form a basic building block for communication systems, including those based on OFDM and CDMA. While parallel Gaussian noise channels have been widely studied, parallel impulsive noise channels have received significantly less attention despite their importance in a range of...

SPAWC 2019 - 20th IEEE International Workshop on Signal Processing Advances in Wireless Communications, Jul 2019, Cannes, France. p.1 à 5, ⟨10.1109/SPAWC.2019.8815443⟩. ⟨hal-02130226⟩