Publications

• Article dans une revue

On the correlation between intermodulation distortion and RF transconductance for microwave GaN HEMT

Mayahsa M. Ali, Mohammad A Alim, Ali A. Rezazadeh, Christophe Gaquière

This paper investigates the correlation between intermodulation distortion and RF transconductance in AlGaN/GaN high electron mobility transistor (HEMT) grown on SiC Substrate. Two-tone intermodulation distortion measurements were carried out across a comprehensive biasing range changing the…

Semiconductor Science and Technology, 2019, 34 (7), pp.075014. ⟨10.1088/1361-6641/ab2395⟩. ⟨hal-03140497⟩

• Communication dans un congrès

Investigating and Experimenting Interference Mitigation by Capture Effect in LoRa Networks

Cong-Duc Pham, Ahcène Bounceur, Laurent Clavier, Umber Noreen, Muhammad Ehsan

the 3rd International Conference, Jul 2019, Paris, France. pp.1-6, ⟨10.1145/3341325.3342022⟩. ⟨hal-02466517⟩

• Article dans une revue

Cl₂/Ar based atomic layer etching of AlGaN layers

Sébastien Aroulanda, Olivier Patard, Philippe Altuntas, Nicolas Michel, Jorge Pereira, Cédric Lacam, Piero Gamarra, Sylvain L. Delage, N. Defrance, Jean-Claude de Jaeger, Christophe Gaquière

This paper reports on atomic layer etching of several III-N materials such as GaN, AlN, AlGaN, and InAlGaN based on a sequential surface modification by chlorine adsorption followed by a low energy Ar plasma exposure to remove the modified layer using a reactive ion etching system. A study on the…

• Article dans une revue

Graphite/nanocrystalline zeolite platform for selective electrochemical determination of hepatitis C inhibitor ledipasvir

Shimaa Atty, Mona Mohamed, Lobna Abd el halim, Fatma Fouad, Rabah Boukherroub

A simple and efficient procedure is described for the electrochemical determination of ledipasvir (LDP) in presence of co-formulated drug sofosbuvir (SOF). Herein, a highly sensitive, low-cost electrochemical protocol was utilized to fabricate a zeolite modified carbon paste electrode (ZY/CPE)…

Electroanalysis, 2019, 31 (7), pp.1215-1223. ⟨10.1002/elan.201800500⟩. ⟨hal-02373170⟩

• Article dans une revue

New millimeter wave generation scheme for MIMO-OFDM based Radio-over-Fiber system

M. El Yahyaoui, A. El Moussati, Ghaïs El Zein, Kamel Haddadi

This paper proposes a new scheme for the generation and transmission of a MIMO-OFDM signal over optical fiber using a single local oscillator (LO) at 15 GHz. This technique is based on subcarrier multiplexing and Optical Carrier Suppression (OCS) modulation using both Dual-Parallel Mach–Zehnder…

Optics Communications, 2019, 442, pp.101-105. ⟨10.1016/j.optcom.2019.03.017⟩. ⟨hal-02089125⟩

• Article dans une revue

Magneto-Optical Study of the Anisotropic Piezoelectric Effect in a Ferroelectric Crystal

A. Klimov, Nicolas Tiercelin, Vladimir Preobrazhensky, A. Sigov, Philippe Pernod

The possibility of using the magneto-optical Kerr effect in thin magnetostrictive films to study the piezoelectric characteristics of ferroelectrics is demonstrated experimentally and theoretically. A 011 PMN-PT ferroelectric crystal with an N*(TbCo 2 /FeCo) magnetostrictive nanostructure deposited…

Bulletin of the Russian Academy of Sciences - Physics, 2019, 83 (7), pp.888-890. ⟨10.3103/S1062873819070207⟩. ⟨hal-02318296⟩

• Communication dans un congrès

Micro-Electro-Mechanical-Systems advances for measurements at small scales: the vertical silicon probes technology extended to nearfield optics

B. Walter, E. Mairiaux, Sophie Eliet, Jean-Francois Lampin, Marc Faucher

Instrumentation intending to go beyond the limits of current Atomic Force Microscope setups (AFM), and applications requiring AFM to be integrated in non-standards environmental conditions need sensors that overcome limitations given by available probes. We show that the vertical probe technology…

2019 International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS 2019), Jul 2019, Helsinki, Finland. pp.1-5, ⟨10.1109/MARSS.2019.8860980⟩. ⟨hal-03321928⟩

• Article dans une revue

Second-order autoregressive model-based Kalman filter for the estimation of a slow fading channel described by the Clarke model: Optimal tuning and interpretation

Ali Houssam El Husseini, Eric Pierre Simon, Laurent Ros

This paper treats the estimation of a flat fading Rayleigh channel with Jakes' Doppler spectrum model and slow fading variations. A common method is to use a Kalman filter (KF) based on an auto-regressive model of order p (AR(p)). The parameters of the AR model can be simply tuned by using the…

Digital Signal Processing, 2019, 90 (July), pp.125-141. ⟨10.1016/j.dsp.2019.04.008⟩. ⟨hal-02112635⟩

• Article dans une revue

Digital RF transmitter with single-bit ΔΣ M-driven switched-capacitor RF DAC and embedded band filter in 28-nm FD-SOI

Razvan-Cristian Marin, Antoine Frappé, Bruno Stefanelli, Philippe Cathelin, Andreia Cathelin, Andreas Kaiser

This paper presents a single-bit RF transmitter based on single-bit switched-capacitor RF digital-to-analog converters (DACs) embedded in an finite-impulse response (FIR) filter (FIR-DACs). The transmitter system comprises a single-bit quadrature delta-sigma modulator (M), a digital mixer, and a…

IEEE Transactions on Microwave Theory and Techniques, 2019, 67 (7), pp.3200-3209. ⟨10.1109/TMTT.2019.2897929⟩. ⟨hal-02314498⟩

• Article dans une revue

The Effects of AlN and Copper Back Side Deposition on the Performance of Etched Back GaN/Si HEMTs

Georges Pavlidis, Samuel Kim, Idriss Abid, Malek Zegaoui, F Medjdoub, Samuel Graham

The breakdown voltage of GaN/Si high electron mobility transistors (HEMTs) for power electronics has shown to be improved by removing the silicon substrate. The drawback to this approach is the increase in the device's thermal resistance which limits the power dissipation that the device can…

IEEE Electron Device Letters, 2019, 40 (7), pp.1060-1063. ⟨10.1109/LED.2019.2915984⟩. ⟨hal-02356736⟩