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Affichage de 7031 à 7040 sur 16387

  • Article dans une revue

Multipath component distance-based fingerprinting technique for non-cooperative outdoor localization in NLOS scenarios

Isabelle Vin, Davy Gaillot, Pierre Laly, M. Lienard, Pierre Degauque

Accurate localization of mobile phone users is needed for search and rescue applications or for electronic surveillance in urban or suburban areas. Assuming that the mobile station (MS) has been roughly localized by the cellular network or by any other means, we propose an approach using dedicated...

IEEE Transactions on Antennas and Propagation, 2014, 62, pp.4794-4798. ⟨10.1109/TAP.2014.2327142⟩. ⟨hal-01063879⟩

  • Article dans une revue

Threshold voltage study of scaled self-aligned In0.53Ga0.47As metal oxide semiconductor field effect transistor for different source/drain doping concentrations

A. Dehzangi, M.F. Mohd Razip Wee, Nicolas Wichmann, S. Bollaert, M.R. Buyong, B.Y. Majlis

A multi-gate n-type In0.53Ga0.47As metal oxide semiconductor field effect transistor is fabricated using the gate first self-aligned method and air-bridge technology with an 8 nm thick Al2O3 oxide layer. By scaling the gate length down to 200 nm, the effect of two different source/drain doping...

Micro and Nano Letters, 2014, 9, pp.180-183. ⟨10.1049/mnl.2014.0007⟩. ⟨hal-00969127⟩

  • Article dans une revue

Interferometer-based microwave microscopy operating in transmission mode

Kamel Haddadi, Tuami Lasri

A microwave near-field sensing technique with sub-wavelength resolution is proposed for nondestructive local characterization of materials. The method is based on the measurement of a transmission coefficient by means of an association of a vector network analyzer, a hybrid coupler, an evanescent...

IEEE Sensors Journal, 2014, 14, pp.2226-2227. ⟨10.1109/JSEN.2014.2317452⟩. ⟨hal-01000003⟩

  • Article dans une revue

Gold-free ternary III-V antimonide nanowire arrays on silicon : twin-free down to the first bilayer

Sònia Conesa-Boj, Dominik Kriegner, Xiang-Lei Han, S.R. Plissard, Xavier Wallart, Julian Stangl, Anna Fontcuberta I Morral, Philippe Caroff

With the continued maturation of III-V nanowire research, expectations of material quality should be concomitantly raised. Ideally, III-V nanowires integrated on silicon should be entirely free of extended planar defects such as twins, stacking faults, or polytypism, position-controlled for...

Nano Letters, 2014, 14, pp.326-332. ⟨10.1021/nl404085a⟩. ⟨hal-00926662⟩

  • Article dans une revue

A modal formulation for the propagation of guided waves in straight and curved pipes and the scattering at their junction

M. El Bakkali, A. Lhémery, V. Baronian, Sébastien Grondel

The well-established semi-analytic finite element (SAFE) method for predicting guided wave propagation in straight guides is extended to deal with curved pipes using curvilinear coordinates system, following developments by Treyssède and Laguerre [J. Sound Vib. 329 1702-16 (2010)] for helical wires...

Journal of Physics: Conference Series, 2014, 12th Anglo-French Physical Acoustics Conference (AFPAC2013) 16–18 January 2013, Fréjus, France, 498, pp.012012. ⟨10.1088/1742-6596/498/1/012012⟩. ⟨hal-00975724⟩

  • Article dans une revue

Sub-THz characterisation of monolayer graphene

Ehsan Dadrasnia, Sujitha Puthukodan, Vinod V. K. Thalakkatukalathil, Horacio Lamela, Guillaume Ducournau, Jean-Francois Lampin, Frédéric Garet, Jean-Louis Coutaz

We explore the optical and electrical characteristics of monolayer graphene by using pulsed optoelectronic terahertz time-domain spectroscopy in the frequency range of 325-500 GHz based on fast direct measurements of phase and amplitude. We also show that these parameters can, however, be measured...

Journal of Spectroscopy, 2014, 2014, 601059, 6 p. ⟨10.1155/2014/601059⟩. ⟨hal-01044860⟩

  • Article dans une revue

Guided waves in multilayered plates

Jiangong Yu, Jean-Etienne Lefebvre, Lahoucine Elmaimouni

Conventional orthogonal polynomial approach can solve the multilayered plate only when the material properties of two adjacent layers do not change significantly. This paper developed an improved orthogonal polynomial approach to solve wave propagation in multilayered plates with very dissimilar...

Acta Mechanica Solida Sinica, 2014, 27 (5), pp. 542-550. ⟨hal-03644998⟩

  • Article dans une revue

Multi-carrier transmission of vectorial modulation schemes using electronic transceivers at 588 GHz

Guillaume Ducournau, P. Szriftgiser, D. Bacquet, Mohammed Zaknoune, Rédha Kassi, Jean-Francois Lampin

A reported is presented on the first communication system using vectorial modulation schemes above 500 GHz. Using Schottky-based electronic technologies at 588 GHz, potentialities of high-level multicarrier modulation schemes for wireless links are analysed. The wireless link is composed of an...

Electronics Letters, 2014, 50 (23), pp.1715-1716. ⟨10.1049/el.2014.3652⟩. ⟨hal-03286166⟩

  • Communication dans un congrès

Patterning innovative conducting interpenetrating polymer network by dry etching

Alexandre Khaldi, Ali Maziz, Cedric Plesse, Caroline Soyer, Dominique Teyssié, Frederic Vidal, Eric Cattan

Interpenetrating polymer networks, as biomimetic actuators, can become successful actuators in the field of microsystems providing they are compatible with micro-technologies. In this paper, we report a novel material synthesized from poly(3,4-ethylenedioxythiophene) and polyethylene oxide)/nitrile...

IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2014, 2014, Besançon, France. ⟨10.1109/AIM.2014.6878282⟩. ⟨hal-01058046⟩

  • Communication dans un congrès

A focusing technique based on a data spatial diversity at millimetre-wave frequency

Michael Bocquet, Atika Rivenq, Christophe Loyez, Nathalie Rolland

This paper presents a new topology of data coding and data broadcasting exclusively sent to a specific location area. The proposed technique exploits specifically different received signals to focus energy and to rebuild information intelligibly only for a chosen position. By this way, the receiver...

2014 44th European Microwave Conference, EuMC 2014 - Held as Part of the 17th European Microwave Week, EuMW 2014, Oct 2014, Rome, Italy. pp.913-916, ⟨10.1109/EuMC.2014.6986584⟩. ⟨hal-03528679⟩