Zobrazeno 1 - 10
of 394
pro vyhledávání: '"Alessandro Galli"'
Autor:
Fabio Sporchia, Marta Antonelli, Alicia Aguilar-Martínez, Anna Bach-Faig, Dario Caro, Kyle F. Davis, Roberta Sonnino, Alessandro Galli
Publikováno v:
Sustainable Earth Reviews, Vol 7, Iss 1, Pp 1-6 (2024)
Abstract Since 2020, the progress towards the achievement of Sustainable Development Goal (SDG) 2– Zero Hunger has faced a sudden stall due to an ongoing “polycrisis”. While some countries are on track, a great effort is still globally necessar
Externí odkaz:
https://doaj.org/article/b7f6a35ba59340fd81b6bd66dc873c09
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract Several RF and microwave radiating devices, such as horn antennas, Fabry–Perot cavity antennas, and aperture-fed focusing devices, are excited through rectangular waveguides. The impedance matching of the overall system (from the waveguide
Externí odkaz:
https://doaj.org/article/2e5d97c0b76946b198829be65f11b579
Autor:
Mikhail Madji, Edoardo Negri, Walter Fuscaldo, Davide Comite, Alessandro Galli, Paolo Burghignoli
Publikováno v:
Applied Sciences, Vol 14, Iss 15, p 6775 (2024)
Two-dimensional leaky-wave antennas (LWAs) are a class of planar, traveling-wave radiators with attractive features of a low profile, ease of feeding, frequency reconfigurability of the radiation pattern, and polarization agility. Their use in conjun
Externí odkaz:
https://doaj.org/article/fade17d3ea7e4c82a9d989c2d8967d93
Autor:
Nicholas Ricciardella, Walter Fuscaldo, Tito Mattei, Anna Maria Fiorello, Leopoldo Infante, Alessandro Galli
Publikováno v:
Applied Sciences, Vol 14, Iss 14, p 6015 (2024)
In a software-defined radar (SDR) system, most of the signal processing usually implemented in hardware is implemented by software, thus allowing for higher flexibility and modularity compared to conventional radar systems. However, the majority of S
Externí odkaz:
https://doaj.org/article/8420bbf0a6a14db798117314fb10d34a
Autor:
Sara Moreno Pires, Mahsa Mapar, Mariana Nicolau, Nicoletta Patrizi, Georgios Malandrakis, Federico M. Pulselli, Paula Bacelar Nicolau, Sandra Caeiro, Valentina Niccolucci, Nicolaos P. Theodossiou, Maria Serena Mancini, Alessandro Galli
Publikováno v:
Frontiers in Education, Vol 7 (2022)
In a world characterized by Ecological Overshoot, where humanity demands more from natural ecosystems than they can sustainably renew, education can nurture sustainability-minded citizens and future leaders to help accelerate the transition toward an
Externí odkaz:
https://doaj.org/article/7f23d073a74145a4ac918c00974ab0ab
Autor:
Paolo Burghignoli, Walter Fuscaldo, Francesco Mancini, Davide Comite, Paolo Baccarelli, Alessandro Galli
Publikováno v:
IEEE Access, Vol 8, Pp 163006-163014 (2020)
A planar antenna radiating twisted beams with different azimuthal order and a consistent beam angle is designed by employing a single uniform circular array embedded in a Fabry-Perot cavity. Circular phased arrays placed in free space are commonly em
Externí odkaz:
https://doaj.org/article/73fa565de5904148bd97300066324420
Autor:
Manuel Luciarini, Domenico Gaetano, Christian Canestri, Cosmo Mitrano, Walter Fuscaldo, Alessandro Galli
Publikováno v:
International Journal of Antennas and Propagation, Vol 2022 (2022)
This work presents the design of a wideband circular tightly coupled array for omnidirectional pattern generation. The proposed array works over an 8:1 bandwidth, providing very high performance in terms of active reflection coefficient, realized gai
Externí odkaz:
https://doaj.org/article/418fcf03829d4b0a96f2ab02e7592cc0
Publikováno v:
Micromachines, Vol 13, Iss 12, p 2230 (2022)
Resonant Bessel-beam launchers are low-cost, planar, miniaturized devices capable of focusing electromagnetic radiation in a very efficient way in various frequency ranges, with recent increasing interest for microwave and millimeter-wave application
Externí odkaz:
https://doaj.org/article/91e21c1397ba48608b7c2a433d77433f
Autor:
Walter Fuscaldo, Dimitrios C. Zografopoulos, Francesca Imperato, Paolo Burghignoli, Romeo Beccherelli, Alessandro Galli
Publikováno v:
Applied Sciences, Vol 12, Iss 22, p 11770 (2022)
The tunable properties of nematic liquid crystals (NLC) are here exploited in a peculiar leaky waveguide with artificial magnetic conductors as the lateral walls, a bottom metal ground plane, and a homogenized metasurface on top to obtain dynamic bea
Externí odkaz:
https://doaj.org/article/1ecfda60ecbe4aecb07565af6f6e98db
Autor:
Davide Comite, Symon K. Podilchak, Paolo Baccarelli, Paolo Burghignoli, Alessandro Galli, Alois P. Freundorfer, Yahia M. M. Antar
Publikováno v:
IEEE Access, Vol 7, Pp 28672-28683 (2019)
The design of a K-band radial leaky-wave antenna is presented for polarization diversity applications. The antenna structure is constituted by an annular, radially periodic, and metallic strip grating printed on top of a single-layer grounded dielect
Externí odkaz:
https://doaj.org/article/74091c88684a4f959ef35e00638532bc