Publications

Affichage de 3721 à 3730 sur 16133


  • Article dans une revue

A superheterodyne 300 GHz wireless link for ultra-fast terahertz communication systems

Iulia Dan, Guillaume Ducournau, Shintaro Hisatake, Pascal Szriftgiser, Ralf-Peter Braun, Ingmar Kallfass

A superheterodyne transmission scheme is adopted and analyzed in a 300 GHz wireless point-to-point link. This was realized using two different intermediate frequency (IF) systems. The first uses fast digital synthesis which provides an IF signal centered around a carrier frequency of 10 GHz. The…

International Journal of Microwave and Wireless Technologies, 2020, 12 (7), pp.578-587. ⟨10.1017/S1759078720000495⟩. ⟨hal-03321525⟩

  • Article dans une revue

High-Frequency Noise Characterization and Modeling of Graphene Field-Effect Transistors

Marina Deng, Dalal Fadil, Wei Wei, Emiliano Pallecchi, Henri Happy, Gilles Dambrine, Magali de Matos, Thomas Zimmer, Sébastien Frégonèse

This article presents the small-signal and noise characterization of different technologies based on chemical vapor deposition (CVD) and silicon-carbide (SiC) graphene field-effect transistors (GFETs). The noise model, built on noise figure measurements under 50 Ω using the F 50 method, was…

IEEE Transactions on Microwave Theory and Techniques, 2020, 68 (6), pp.2116-2123. ⟨10.1109/TMTT.2020.2982396⟩. ⟨hal-02540064⟩

  • Communication dans un congrès

High Q Factor and High Transmittance Suspended Membrane THz PhC Cavity: Experimental Demonstration for Sensing Applications

Elias Akiki, Mattias Verstuyft, Guillaume Ducournau, Benjamin Walter, Bart Kuyken, Jean-Francois Lampin, Mathias Vanwolleghem

45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Nov 2020, Buffalo, NY, USA, United States. pp.1-2, ⟨10.1109/IRMMW-THz46771.2020.9370994⟩. ⟨hal-03191456⟩

  • Communication dans un congrès

Terahertz spintronic emitter with arbitrarily controllable linear polarization properties not needing a rotating magnetic bias

Pierre Kolejak, Kamil Postava, Jean-Francois Lampin, Nicolas Tiercelin, Mathias Vanwolleghem

Spintronic THz emitters are new intensively studied sources of THz radiation with high potential in broadband THz time-domain spectroscopy. We present a novel architecture for a spintronic emitter based on a ferromagnetic heterostructure with an induced in-plane magnetic anisotropy. This new…

45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Nov 2020, Buffalo, NY (Virtual), United States. pp.1-2, ⟨10.1109/IRMMW-THz46771.2020.9370505⟩. ⟨hal-03322811⟩