Publicaciones

Affichage de 2101 à 2110 sur 16059


  • ART

AlGaN/GaN High Electron Mobility Transistors Grown by MOVPE on 3C-SiC/Si(111) for RF Applications

Marie Lesecq, Eric Frayssinet, Marc Portail, Micka Bah, N. Defrance, Thi Huong Ngo, Mahmoud Abou Daher, Marcin Zielinski, Daniel Alquier, Jean-Claude de Jaeger, Yvon Cordier

In this work, an AlGaN/GaN HEMT structure is grown on a 0.8 μm thick 3C-SiC layer on high resistivity Silicon substrate. The RF propagation losses are investigated and compared with the ones of epi-layers grown directly on Silicon and on 6H-SiC substrates. Short gate length transistors are...

Materials Science Forum, 2022, 1062, pp.482-486. ⟨10.4028/p-2wi7o8⟩. ⟨hal-03741438⟩

  • COMM

A test methodology to assess the susceptibility of LTE communications in a railway electromagnetic environment

Nathan Chopinet, Virginie Deniau, Eric Pierre Simon, Artur Nogueira de Sao Jose, Jonathan Villain

The LTE communication protocol is more and more employed in the railway domain. Indeed, the LTE throughput enables railway companies to offer Wi-Fi connections to their customers inside the trains. LTE is also used in innovation projects such as remote train control and autonomous trains. However,...

2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC), May 2022, Gran Canaria, Spain. pp.1-4, ⟨10.23919/AT-AP-RASC54737.2022.9814386⟩. ⟨hal-03744120⟩

  • COMM

Detection and Classification of Interference affecting LoRaWAN communications in Railway environment

Jonathan Villain, Virginie Deniau, Eric Pierre Simon, Christophe Gransart, Artur Nogueira de São José, Florent Valenti, Norbert Becuwe

The French national railway company (SNCF) is deploying Internet of Things (IoT) technologies using the LoRaWAN communication protocol to centralize and transmit the data measured by the onboard sensors to the railway maintenance centers. They recently developed a communication interface connected...

2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC), May 2022, Gran Canaria, Spain. pp.1-4, ⟨10.23919/AT-AP-RASC54737.2022.9814310⟩. ⟨hal-03737982⟩

  • COMM

Structural evolution and charge storage mechanism of sputtered LiMn15Ni1;5O4 thin films by X-ray diffraction and Raman spectroscopy

Ankush Bhatia, Clement Leviel, Maxime Hallot, Jean Pierre Pereira-Ramos, Christophe Lethien, Pascal Roussel, Rita Baddour-Hadjean

European Materials Research Society Spring meeting (EMRS 2022), May 2022, Visioconférence, France. ⟨hal-04304410⟩

  • COMM

Deterministic Polarimetric Propagation Analysis in Road Tunnels

Esteban Egea-Lopez, Jose-Maria Molina-Garcia-Pardo, Martine Lienard, Pierre Degauque

The objective of this paper is to study the influence of the direction of polarization at the transmitter site on the characteristics of the propagation channel in a road tunnel, either empty or in presence of vehicles. The transmitting frequency being on the order of 1 GHz, the tunnel behaves as...

2022 International Wireless Communications and Mobile Computing (IWCMC), May 2022, Dubrovnik, Croatia. pp.743-747, ⟨10.1109/IWCMC55113.2022.9825451⟩. ⟨hal-03740319⟩

  • COMM

Asymmetric VN // RuN micro-supercapacitors based on sputtered metal nitride films

Khac-Huy Dinh, Kevin Robert, Florent Blanchard, Marielle Huvé, Pascal Roussel, Christophe Lethien

European Materials Research Society Spring meeting (EMRS 2022), May 2022, Visioconférence, France. ⟨hal-04304357⟩