Zobrazeno 1 - 10
of 175
pro vyhledávání: '"RAMACCIA, DAVIDE"'
Autor:
Monti, Alessio, Vellucci, Stefano, Barbuto, Mirko, Stefanini, Luca, Ramaccia, Davide, Toscano, Alessandro, Bilotti, Filiberto
Publikováno v:
Optics Express, 2024
In this study, we investigate the feasibility of designing reconfigurable transmitting metasurfaces through the use of Drude-like scatterers with purely electric response. Theoretical and numerical analyses are provided to demonstrate that the respon
Externí odkaz:
http://arxiv.org/abs/2404.01315
Autor:
Monti, Alessio, Vellucci, Stefano, Barbuto, Mirko, Ramaccia, Davide, Longhi, Michela, Massagrande, Claudio, Toscano, Alessandro, Bilotti, Filiberto
Publikováno v:
IEEE Transactions on Antennas and Propagation ( Volume: 71, Issue: 2, February 2023)
The quest for increasing the scanning range of a phased array is a challenging task for antenna engineers, and its solution could lead to significant advances in different applicative scenarios, ranging from 5G and beyond 5G communications to radar a
Externí odkaz:
http://arxiv.org/abs/2202.00939
Autor:
Barbuto, Mirko, Hamzavi-Zarghani, Zahra, Longhi, Michela, Monti, Alessio, Ramaccia, Davide, Vellucci, Stefano, Toscano, Alessandro, Bilotti, Filiberto
Publikováno v:
IEEE Transactions on Antennas and Propagation ( Volume: 70, Issue: 10, October 2022)
So far, the environment has been considered as a source of fading, clutter, blockage, etc., with detrimental consequences for the efficiency and robustness of communication systems. However, the intense research developed toward beyond-5G communicati
Externí odkaz:
http://arxiv.org/abs/2112.02293
Autor:
Stefanini, Luca, Yin, Shixiong, Ramaccia, Davide, Alu, Andrea, Toscano, Alessandro, Bilotti, Filiberto
Temporal metamaterials have been recently exploited as a novel platform for conceiving several electromagnetic and optical devices based on the anomalous scattering response arising at a single or multiple sudden changes of the material properties. H
Externí odkaz:
http://arxiv.org/abs/2105.14350
Autor:
Ramaccia, Davide, Sounas, Dimitrios L., Marini, Angelica V., Toscano, Alessandro, Bilotti, Filiberto
Publikováno v:
IEEE Antennas and Wireless Propagation Letters, vol. 19, no. 11, pp. 1886-1890, Nov. 2020
In this letter, we propose a magnet-less non-reciprocal isolating system based on time-varying metasurfaces. Two parallel time-varying metasurfaces, one for frequency up-conversion and one for down-conversion by the same amount, are used for realizin
Externí odkaz:
http://arxiv.org/abs/2103.03683
Autor:
Ramaccia, Davide, Sounas, Dimitrios L., Alu', Andrea, Toscano, Alessandro, Bilotti, Filiberto
Publikováno v:
IEEE Transactions on Antennas and Propagation, vol. 68, no. 3, pp. 1607-1617, March 2020
Metasurfaces consisting of electrically thin and densely packed planar arrays of subwavelength elements enable an unprecedented control of the impinging electromagnetic fields. Spatially modulated metasurfaces can efficiently tailor the spatial distr
Externí odkaz:
http://arxiv.org/abs/2102.01994
Akademický článek
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Time-varying metamaterials are artificial materials whose electromagnetic properties change over time. In earlier studies, the equivalent reflection and transmission coefficients at a temporal interface have been derived. Here, we extend the study to
Externí odkaz:
http://arxiv.org/abs/1911.04280
Akademický článek
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Akademický článek
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