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Affichage de 6441 à 6450 sur 16109

Article dans une revue

Cancellation Technique for CW Ground Penetrating Radar Applications

S. Nounouh, Kamel Haddadi, T. Lasri

An adjustable canceller based on microwave interferometry is proposed for ground penetrating radar applications. This canceller, built up with a power divider and an impedance tuner, is integrated in a monostatic continuous wave (CW) radar in order to improve its measurement sensitivity. A set of…

IEEE Microwave and Wireless Components Letters, 2015, 25 (5), pp.343-345. ⟨10.1109/LMWC.2015.2410144⟩. ⟨hal-03224664⟩

Communication dans un congrès

Forward V-band Vector Network Analyzer Based on a Modified Six-port Technique

Kamel Haddadi, Tuami Lasri

A V-band forward network analyzer based on a modified six-port technique is proposed for the measurement of complex reflection (S-11) and transmission (S-21) coefficients. The millimeter-wave part of the system is implemented on a thin alumina ceramic substrate. The measurement performance is…

2015 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNet 2015, 9th IEEE Radio & Wireless Week, RWW 2015, Jan 2015, San Diego, CA, États-Unis. pp.23-25, ⟨10.1109/WISNET.2015.7127400⟩. ⟨hal-03224666⟩

Article dans une revue

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⟩

Article dans une revue

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⟩

Article dans une revue

A Unified Explanation of gm /ID -Based Noise Analysis

Jack Ou, Pietro Maris Ferreira

We present an unified explanation of the transconductance-to-drain current (gm/ID)-based noise analysis in this paper. We show that both thermal noise coefficient (γ) and device noise corner frequency (fco) are dependent on the gm/ID of a transistor. We derive expressions to demonstrate the…

Journal of Circuits, Systems, and Computers, 2015, 24 (1), pp.1550010. ⟨10.1142/S0218126615500103⟩. ⟨hal-01222077⟩

Communication dans un congrès

0.69 THz room temperature heterodyne detection using GaN nanodiodes

Carlos Daher, Jeremie Torres, Ignacio Iñiguez-De-La-Torre, Philippe Nouvel, Luca Varani, Paul Sangaré, Guillaume Ducournau, Christophe Gaquière, Javier Mateos, And Tomás González

GaN-based asymmetric nanodiodes have been used as heterodyne detectors up to 0.69 THz in free-space configuration where Intermediate Frequency bandwidth has been measured up 13 GHz. Monte Carlo simulations, used to estimate nano-device intrinsic conversion losses of 27 dB have confirmed these…

19th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures, 2015, Salamanca, Spain. ⟨10.1088/1742-6596/647/1/012006⟩. ⟨hal-01920765⟩

Article dans une revue

The beginnings of plasmomechanics : towards plasmonic strain sensors

Thomas Maurer, Joseph Marae Djouda, Ugo Cataldi, Arthur Gontier, Guillaume Montay, Yazid Madi, Benoît Panicaud, Demetrio Macías, Pierre-Michel Adam, Gaëtan Lévêque, Thomas Bürgi, Roberto Caputo

This article exposes the beginnings of a new field which could be named as “plasmomechanics”. Plasmomechanics comes from the convergence between mechanics and plasmonics. Here we discuss a relatively recent topic whose technological aim is the development of plasmonic strain sensors. The idea is…

Frontiers of Materials Science in China, 2015, 9 (2), pp.170-177. ⟨10.1007/s11706-015-0290-z⟩. ⟨hal-01286265⟩

Communication dans un congrès

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⟩

Communication dans un congrès

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⟩

Communication dans un congrès

Minimum spanning tree topology in real zigbee-arduino sensor network

M. Ouadou, O. Zytoune, Yassin El Hillali, Atika Rivenq, D. Aboutajdine

In this paper, we present a real indoor application for improved”Cluster Tree” network using Zigbee sensor nodes integrated with”Arduino” microcontrollers where the main goal is to study the efficiency of our improved clustering topology based on Minimum Spanning Tree (MST) construction under real…

7th International Conference on Ad Hoc Networks, AdHocHets 2015, Sep 2015, San Remo, Italy. pp.57-68, ⟨10.1007/978-3-319-25067-0_5⟩. ⟨hal-03528680⟩