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Communication dans un congrès

Dielectric Properties Extraction of Coplanar Propagation Waveguides on High Resistivity Silicon Substrates

Qing Lv, Hua Zhao, N. Defrance, Chao Fu, Kamel Haddadi, Lujuan Ma

The dielectric properties of coplanar propagation waveguides (CPW) designed and fabricated on high resistivity silicon substrates are investigated. These CPWs exhibited transmission losses around 0.4 dB/mm at 50 GHz. In particular, temperature-dependent measurements show very low deviations. The…

International Conference on Mechatronics, Electronic, Industrial and Control Engineering (MEIC), Apr 2015, Shenyang, PEOPLES R, China. pp.539-542. ⟨hal-03224668⟩

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V-Band Via-Less GCPW-to-Microstrip Transition Designed on PET Flexible Substrate Using Inkjet Printing Technology

A. Chahadih, Pierre-Yves Cresson, C. Mismer, T. Lasri

In this letter, a grounded coplanar waveguide-to-microstrip (GCPW-to-MS) transition without via holes is presented. The transition is designed on a PET® substrate and fabricated using inkjet printing technology. To our knowledge, fabrication of transitions using inkjet printing technology has not…

IEEE Microwave and Wireless Components Letters, 2015, 25 (7), pp.436-438. ⟨10.1109/LMWC.2015.2427576⟩. ⟨hal-03538488⟩

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Ultrasonic Tomography of Nonmixing Fluid Flows

P I Pyl 'Nov, P I Krutyansky, V I Kutlubaeva, Farzam Zoueshtiagh, P I Chainais, V I Herman, Philippe Pernod

An ultrasonic method for simultaneous measurement of two-dimensional distributions of compositions and flow velocities in a system of two nonmixing fluids is proposed and implemented. The method is based on tomographic reconstruction of images of scalar and vector objects using a rectangular system…

Physics of Wave Phenomena, 2015, 23, pp.273 - 278. ⟨10.3103/S1541308X15040056⟩. ⟨hal-01433710⟩

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Optimization of a Tunable Piezoelectric Resonator Using Phononic Crystals with Periodic Electrical Boundary Conditions

Marie-Fraise Ponge, Bertrand Dubus, Christian Granger, Jerome O. Vasseur, Mai Pham Thi, Anne-Christine Hladky

Piezoelectric phononic crystals with periodic short-circuit conditions exhibit Bragg band gaps. They are used to design a Fabry-Perot cavity. The design of the device enables a modification of cavity length by a spatial shift of electrical boundary conditions. The resonator is thus tunable and a…

Physics Procedia, 2015, 70, pp.258-261. ⟨10.1016/j.phpro.2015.08.149⟩. ⟨hal-03300497⟩

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Analysis of a Phononic Crystal Constituted of Piezoelectric Layers Using Electrical Impedance Measurement

S.A. Mansoura, Pierre Marechal, Bruno Morvan, Bertrand Dubus

Active materials are investigated as a tuning possibility for phononic crystals. Electromechanical properties of piezoelectric materials electrical and mechanical variables are coupled. Thus, the propagation properties of elastic waves can be tuned using electrical impedance load connected to the…

2015 ICU International Congress on Ultrasonics, Metz, France, May 2015, Metz, France. pp.283-286, ⟨10.1016/j.phpro.2015.08.155⟩. ⟨hal-03875669⟩

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QAM-32/0.588 THz communication using electronic Schottky transceivers

Guillaume Ducournau, Pascal Szriftgiser, Denis Bacquet, Emilien Peytavit, Mohammed Zaknoune, Rédha Kassi, Jean-Francois Lampin

We report on THz communication system using vectorial modulations schemes above 500 GHz. Using schottky-based electronic technologies at 588 GHz, potentialities of high-level multi-carrier modulation schemes for wireless links are analyzed. The wireless link is composed of an emitter with sub-…

40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Aug 2015, Hong Kong, Hong Kong SAR China. ⟨10.1109/IRMMW-THz.2015.7327665⟩. ⟨hal-03286182⟩

Article dans une revue

Ambiguity function and Cramer-Rao bounds for standard and new modified Costas signals

Nadjah Touati, Charles Tatkeu, Thierry Chonavel, Yassin El Hillali, Atika Rivenq

The Cramer-Rao bound (CRB) gives a lower variance bound that an estimator can achieve. Presented is a mathematical approach to estimate it for specific radar signals, namely Costas signals and their modified versions. The modified versions design consists in widening Costas frequency hops and…

Electronics Letters, 2015, 51 (19), pp.1497-1499. ⟨10.1049/el.2015.1092⟩. ⟨hal-01213613⟩

Article dans une revue

Kinetic proofreading of chromatin remodeling: from gene activation to gene repression and back

Raghvendra Singh, Guillaume Brysbaert, Marc Lensink, Fabrizio Cleri, Ralf Blossey

ATP-dependent chromatin remodeling is the active displacement of nucleosomes along or off DNA induced by chromatin remodeling complexes. This key process of gene regulation in eukaryote organisms has recently been argued to be controlled by a kinetic proofreading mechanism. In this paper we present…

AIMS Biophysics, 2015, 2 (4), pp.398-411. ⟨10.3934/biophy.2015.4.398⟩. ⟨hal-03285276⟩

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Time-Frequency Processing Adapted for the Different Electromagnetic Compatibility Issues in the Railway Domain

Mohammed Raouf Kousri, Virginie Deniau, Marc Heddebaut, S. Baranowski, Jean Rioult

The railway environment is very rich in terms of electromagnetic disturbances. The variety of the transient and permanent interferences and the current evolution of the communication and signaling railway systems require the adaptation of EMC railway standards. In particular, standardized emission…, L'environnement électromagnétique du chemin de fer est très riche en termes de perturbations électromagnétiques. La variété des signaux transitoires et des interférences permanentes et l'évolution actuelle des systèmes de communication et de signalisation ferroviaire nécessitent l'…

EMC 2015, Joint IEEE International Symposium on Electromagnetic Compatibility and EMC Europe, Aug 2015, Dresden, Germany. 6p, ⟨10.1109/ISEMC.2015.7256353⟩. ⟨hal-01471551⟩

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Near-field scanning microwave microscope for subsurface non-destructive characterization

Sijia Gu, Kamel Haddadi, Abdelhatif El Fellahi, Tuami Lasri

We report a nondestructive testing system based on near-field scanning microwave microscopy. The instrumentation is built up with a vector network analyzer, a fully automated tuning matching network and an evanescent microwave probe. The system can perform microwave images in the frequency band 0.1…

45th European Microwave Conference (EuMC), Sep 2015, Paris, France. pp.155-158, ⟨10.1109/EuMC.2015.7345723⟩. ⟨hal-03224667⟩