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Article dans une revue

An extension of the RiMAX multipath estimation algorithm for ultra-wideband channel modeling

Brecht Hanssens, Emmeric Tanghe, Davy Gaillot, M. Lienard, Claude Oestges, David Plets, Luc Martens, Wout Joseph

This work presents an extension of the high-resolution RiMAX multipath estimation algorithm, enabling the analysis of frequency-dependent propagation parameters for ultra-wideband (UWB) channel modeling. Since RiMAX is a narrowband algorithm, it does not account for the frequency-dependency of the…

EURASIP Journal on Wireless Communications and Networking, 2018, 2018 (1), pp.164. ⟨10.1186/s13638-018-1177-3⟩. ⟨hal-03185604⟩

Communication dans un congrès

A dual-bandwearable exposure meter for personal RF exposure assessment in indoor environments: on-body calibration in a reverberation chamber

Reza Aminzadeh, Arno Thielens, Davy Gaillot, M. Lienard, Sam Agneessens, Patrick van Torre, Matthias van den Bossche, Hendrik Rogier, Martin Roosli, Luc Martens, Wout Joseph

For the first time, a dual band wearable personal distributed exposure meter (DPDE) is designed. The DPDE is calibrated on-body in a reverberation chamber. The meter consists of four nodes including textile antennas operating at 2443 MHz (WiFi 2 GHz) and 2595 MHz (LTE 2600 MHz). The location of the…

2nd URSI Atlantic Radio Science Conference, AT-RASC 2018, May 2018, Gran Canaria, Spain. paper K02-05, 586-589, ⟨10.23919/URSI-AT-RASC.2018.8471583⟩. ⟨hal-03346242⟩

Article dans une revue

Two dimensional modeling of elastic wave propagation in solids containing cracks with rough surfaces and friction – Part I: Theoretical background

Vladislav Aleshin, Steven Delrue, Andrey Trifonov, Olivier Bou Matar, Koen van den Abeele

Abstract Our study aims at the creation of a numerical toolbox that describes wave propagation in samples containing internal contacts (e.g. cracks, delaminations, debondings, imperfect intergranular joints) of known geometry with postulated contact interaction laws including friction. The code…

Ultrasonics, 2018, 82, pp.11-18. ⟨10.1016/j.ultras.2017.07.002⟩. ⟨hal-02364063⟩

Article dans une revue

Dynamics of a broad-band quantum cascade laser: from chaos to coherent dynamics and mode-locking

L. Columbo, S Barbieri, C. Sirtori, M. Brambilla

The dynamics of a multimode quantum cascade laser, are studied in a model based on effective semiconductor Maxwell-Bloch equations, encompassing key features for the radiation-medium interaction such as an asymmetric frequency dependent gain and refractive index as well as the phase-amplitude…

Optics Express, 2018, 26 (3), pp.2829. ⟨10.1364/OE.26.002829⟩. ⟨hal-02403192⟩

Article dans une revue

Optical and Thermal Performances of (Ga,In)N/GaN Light Emitting Diodes Transferred on a Flexible Tape

B. Damilano, Marie Lesecq, Di Zhou, Éric Frayssinet, Sebastien Chenot, Julien Brault, N. Defrance, Abel Ebongue, Y. Cordier, Virginie Hoel

Blue (Ga,In)N-based light-emitting diodes (LEDs) grown on a Si(111) substrate by metal-organic vapor phase epitaxy are transferred on a flexible tape after the Si substrate removal. Their optical and thermal behaviors are measured and compared to those of regular LEDs on Si. The light output power…

IEEE Photonics Technology Letters, 2018, 30 (17), pp.1567-1570. ⟨10.1109/LPT.2018.2858000⟩. ⟨hal-02304909⟩

Article dans une revue

Microscale ultrahigh-frequency resonant wireless powering for capacitive and resistive MEMS actuators

Yoshio Mita, Naoyuki Sakamoto, Naoto Usami, Antoine Frappé, Akio Higo, Bruno Stefanelli, Hidehisa Shiomi, Julien Bourgeois, Andreas Kaiser

This paper presents a versatile chip-level wireless driving method for microelectromechanical system (MEMS) actuators. A MEMS actuator is integrated as an electrical component of a coupled LCR resonant circuit, and it rectifies the energy sent through an ultrahigh-frequency (UHF) radio frequency (…

Sensors and Actuators A: Physical , 2018, 275, pp.75-87. ⟨10.1016/j.sna.2018.03.020⟩. ⟨hal-02182815⟩

Article dans une revue

Wavelength characterization of an acousto-optic notch filter for unpolarized near-infrared light

Jean-Claude Kastelik, Justine Champagne, Samuel Dupont, Konstantin B. Yushkov

A cascaded system of two acousto-optical cells is proposed and experimentally demonstrated for optical notch rejection filtering in the spectral range from 1400 nm to 1600 nm. Two similar paratellurite acousto-optical devices for unpolarized light are used in a free-space gap of a fiber line.…

Applied optics, 2018, 57 (10), pp.C36-C41. ⟨10.1364/AO.57.000C36⟩. ⟨hal-03183486⟩

Communication dans un congrès

Scanning microwave microscopy of vital mitochondria in respiration buffer

Jinfeng Li, Zahra Nemati, Kamel Haddadi, Douglas C. Wallace, Peter J. Burke

We demonstrate imaging using scanning microwave microscopy (SMM) of vital mitochondria in respiration buffer. The mitochondria are isolated from cultured HeLa cells and tethered to a solid graphene support. The mitochondria are kept vital (alive) using a respiration buffer, which provides nutrients…

IEEE/MTT-S International Microwave Symposium, IMS 2018, Jun 2018, Philadelphia, PA, United States. pp.115-118, ⟨10.1109/MWSYM.2018.8439645⟩. ⟨hal-03224648⟩

Article dans une revue

10-Gb/s Indoor THz Communications Using Industrial Si Photonics Technology

Elsa Lacombe, Cybelle Belem-Gonçalves, Cyril Luxey, Frédéric Gianesello, Cédric Durand, Daniel Gloria, Guillaume Ducournau

In this letter, we report the design, fabrication, and measurement of a silicon photonics-based transmitter (Tx) offering both mass production capability and high integration level potentiality. The Tx circuit consists of an integrated photodiode generating a 200-300-GHz signal for photonic…

IEEE Microwave and Wireless Components Letters, 2018, 28 (4), pp.362-364. ⟨10.1109/LMWC.2018.2811242⟩. ⟨hal-03183484⟩

Article dans une revue

Accuracy of parameter identification using the dispersion of surface waves and the role of data quality for inhomogeneous concrete

Radoslaw Drelich, Mariusz Kaczmarek, Bogdan Piwakowski

We study the influence of the data quality on the accuracy of parameter identification for inhomogeneous concrete. The surface of the concrete may differ as a result of either intentional action (decoration or repair) or the interaction of initially homogeneous concrete with the environment. Non-…

NDT & E International, 2018, 98, pp.195-207. ⟨10.1016/j.ndteint.2018.05.002⟩. ⟨hal-03185113⟩