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Affichage de 5011 à 5020 sur 16563

Communication dans un congrès

22nm ultra-thin body and buried oxide FDSOI RF noise performance

Ousmane Kane, Luca Lucci, Pascal Scheiblin, Sylvie Lepilliet, Francois Danneville

The drastic downscaling of the transistor size along with advances in material sciences allowed the development of low power CMOS technologies with competitive RF figure of merits suitable for millimeter applications. In this context, this paper presents the RF and noise characterization (up to 110...

IEEE Radio Frequency Integrated Circuits Symposium (RFIC), Jun 2019, Boston, United States. ⟨10.1109/RFIC.2019.8701740⟩. ⟨hal-03272699⟩

Communication dans un congrès

Multiple antenna receiver under impulsive SαS noise

Nicolas de Araujo Moreira, Laurent Clavier

In a usual MIMO framework when noise is assumed Gaussian, the channel matrix can be estimated with a Least Square approach. In addition, the Euclidean distance is optimal to detect the transmitted symbol. However, in dynamic interference, the Gaussian assumption is no longer valid. In this case,...

WCNC 2019, 17th IEEE Wireless Communications and Networking Conference, Apr 2019, Marrakech, Morocco. 6 p., ⟨10.1109/WCNC.2019.8885790⟩. ⟨hal-03270115⟩

Article dans une revue

Challenges and prospects of 3D micro-supercapacitors for powering the internet of things

Christophe Lethien, Jean Le Bideau, Jean Brousse

The fabrication of miniaturized electrochemical energy storage systems is essential for the development of future electronic devices for Internet of Things applications where connected devices are increasingly deployed in our daily life. On chip micro-supercapacitors are an attractive solution to...

Energy & Environmental Science, 2019, 12 (1), pp.96-115. ⟨10.1039/C8EE02029A⟩. ⟨hal-02020418⟩

Article dans une revue

High performance and highly robust AlN/GaN HEMTs for millimeter-wave operation

Kathia Harrouche, Riad Kabouche, Etienne Okada, F Medjdoub

We report on a 3 nm AlN/GaN HEMT technology for millimeter-wave applications. Electrical characteristics for a 110 nm gate length show a maximum drain current density of 1.2 A/mm, an excellent electron confinement with a low leakage current below 10 μA/mm, a high breakdown voltage and a F T /F max...

IEEE Journal of the Electron Devices Society, 2019, 7, pp.1145-1150. ⟨10.1109/JEDS.2019.2952314⟩. ⟨hal-02357492⟩

Article dans une revue

Electromagnetic physical modeling of a gallium nitride distributed transferred electron device based planar waveguide structure THz oscillator

Christophe Dalle

The potential of a planar waveguide structure terahertz oscillator based on a gallium nitride distributed transferred electron device is theoretically investigated. The circuit numerical physical modeling relies on a two-dimensional time-domain electromagnetism/transport simulator. It is based on...

Advanced Electromagnetics, 2019, 8 (4), pp.89-102. ⟨10.7716/aem.v8i4.1214⟩. ⟨hal-02395343⟩

Communication dans un congrès

Développement de solutions hyperfréquences pour la société moderne: bio-radar et microscopie électromagnétique

Kamel Haddadi, D. Szymik, Virginie Hoel, Gilles Dambrine

Cet article décrit le projet de fin d’étude mis au point au sein du Master Réseaux et Télécommunications parcours SYSCOM (Systèmes Communicants) de l’Université de Lille. Le projet vise à développer des solutions hyperfréquences pour la ville intelligente (Smart City). Les développements techniques...

15èmes Journées Pédagogiques du CNFM, JPCNFM 2018, Nov 2018, Saint-Malo, France. 1013, 9 p., ⟨10.1051/j3ea/20191013⟩. ⟨hal-03340538⟩

Article dans une revue

Synthesis of T-Nb2O5 thin-films deposited by atomic layer deposition for miniaturized electrochemical energy storage devices

Saliha Ouendi, Cassandra Arico, Florent Blanchard, Jean-Louis Codron, Xavier Wallart, Pierre-Louis Taberna, Pascal Roussel, Laurent Clavier, Patrice Simon, Christophe Lethien

Atomic Layer Deposition has been used to grow 30 to 90 nm-thick amorphous Nb2O5 films onto Pt current collectors deposited on Si wafer. While T-Nb2O5 polymorph is obtained by further annealing at 750 °C, the...

Energy Storage Materials, 2019, 16, pp.581-588. ⟨10.1016/j.ensm.2018.08.022⟩. ⟨hal-02135683⟩

Article dans une revue

Sensitivity to Dispersion Forces in First-Principles Modeling of Disordered Chalcogenides

Carlo Massobrio, Évelyne Martin, Ziyad Chaker, Mauro Boero, Assil Bouzid, Sébastien Le Roux, Guido Ori

The inclusion of dispersion (van der Waals, vdW) forces in first-principles modeling of disordered chalcogenides is analyzed and critically discussed in view of their impact on the atomic structure. To this purpose we considered the case of glassy GeTe4. We selected a vdW correction (termed vdWG...

Frontiers in Materials. Computational Materials Science section, 2018, 5, ⟨10.3389/fmats.2018.00078⟩. ⟨hal-02312708⟩

Thèse

Structures périodiques et désordonnées pour l’absorption des ondes électromagnétiques, Periodic and disordered structures for the absorption of electromagnetics waves

Nicolas Fernez

L’absorption des ondes électromagnétiques est un objectif suscitant beaucoup d’intérêt de nos jours notamment pour les applications en furtivité dans le domaine militaire, mais également dans le domaine civil pour limiter l’exposition aux signaux de communication sans fil et pour préserver l..., Absorption of electromagnetic power arouses a lot of interest not solely for stealth applications in military domain, but also in civil life to reduce the exposure to wireless communication signals and to preserve the totality of exchanged information. Absorbers designing for low frequency domain...

Micro et nanotechnologies/Microélectronique. Université de Lille, 2018. Français. ⟨NNT : 2018LILUI081⟩. ⟨tel-03621958⟩

Thèse

Étude par microscopie à sonde locale des propriétés électriques de monocouches auto-assemblées de molécules photo-commutables sur substrats ferromagnétiques, C-AFM study of photoswitchable Self-Assembled Monolayers on ferromagnetic substrates

Louis Thomas

Ce manuscrit traite du transport à travers des monocouches auto-assemblées (self-assembled monolayers, SAMs) de molécules photoisomérisables greffées sur des matériaux ferromagnétiques (FMs) pour des applications à la frontière de l'électronique moléculaire et de la spintronique. Ces systèmes..., This thesis focuses on electrical transport through self-assembled monolayers (SAMs) of photoisomerisable compounds grafted on ferromagnetic materials (FMs) for applications at the frontier between molecular electronics and spintronics. These systems have been characterized by conductive atomic...

Micro et nanotechnologies/Microélectronique. Université de Lille, 2018. Français. ⟨NNT : 2018LILUI086⟩. ⟨tel-02771798v2⟩