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Related publications (25)

Measurements of ion velocity and wave propagation in a hollow cathode plume

The mechanism responsible for the production of energetic ions in the plume of hollow cathodes for electric propulsion is still an open issue. These ions are of concern to cathode and thruster lifetime, particularly for cathodes operating at high (>20 A) d ...

IOP PUBLISHING LTD2019

Neural-Network Optimized 1-bit Precoding for Massive MU-MIMO

Alexios Konstantinos Balatsoukas Stimming, Christoph Studer

Base station (BS) architectures for massive multi-user (MU) multiple-input multiple-output (MIMO) wireless systems are equipped with hundreds of antennas to serve tens of users on the same time-frequency channel. The immense number of BS antennas incurs hi ...

IEEE2019

Review of recent experimental and modeling advances in the understanding of lower hybrid current drive in ITER-relevant regimes

Olivier Sauter, Ambrogio Fasoli, Yiming Li, Basil Duval, Stefano Coda, Martinus Gijs, Yves Martin, Jonathan Graves, Duccio Testa, Patrick Blanchard, Bruno Emanuel Ferreira De Sousa Correia, Pierre-Thomas Paul Brun, Alessandro Pau, Henri Weisen, Cristian Sommariva, Richard Pitts, Sun Hee Kim, Yann Camenen, Jan Horacek, Marco Wischmeier, Javier García Hernández, Mikhail Maslov, Miguel Fernández Ruiz, Nicola Vianello, Antonio José Pereira de Figueiredo, Federico Nespoli, Liang Yao, Dalziel Joseph Wilson, Yao Zhou, Robin Humphry-Baker, David Pfefferlé, José Pedro Rebelo Ferreira Marques, Davide Galassi, Ana Francisca Leal Silva Soares, Daniel Scott Alessi, Jonathan Marc Philippe Faustin, Arnout Lodewijk M Beckers, Julio Rodriguez, Jonnathan Cesar Hidalgo Acosta, , , , , , , , , , ,

Electromagnetic Waves in a Time Periodic Medium With Step-Varying Refractive Index

Romain Christophe Rémy Fleury, Theodoros Koutserimpas

We present an exact mathematical framework for electromagnetic wave propagation in periodically time-modulated media, in which the permittivity is homogenous and modulated in a step-varying fashion. By using Hill’s equation theory, we show that this proble ...

2018

Characteristics of Upward Lightning Flashes

Mohammad Azadifar

In addition to the general aims of lightning research such as lightning physics and meteorology, the study of upward lightning is of particular importance in protection of tall objects such as wind turbines and telecommunication towers. It also helps us in ...

EPFL2018

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Hamish William Patten

Li Shuai

Samuel Lanthaler

Pedro Camilo de Oliveira e Silva

Fang Liu

Alberto Hernando de Castro

Progress in understanding lower hybrid current drive (LHCD) at high density has been made through experiments and modeling, which is encouraging given the need for an efficient off-axis current profile control technique in burning plasma. By reducing the w ...

IOP Publishing Ltd2018