E-viri
PDF
Recenzirano
Odprti dostop
-
Rodríguez-Ulibarri, Pablo; Crépin, Thomas; Martel, Cedric; Boust, Fabrice; Falcone, Francisco; Loecker, Claudius; Herbertz, Kai; Bertuch, Thomas; Dousset, Thierry; Martinaud, Jean-Paul; Maci, Stefano; Marcotegui, Jose Antonio; Beruete, Miguel
EPJ applied metamaterials, 2016, Letnik: 3Journal Article
This paper presents two metamaterial-inspired solutions to mitigate the scan blindness effects in a phased array antenna. In the first solution, portions of a bed of nails are introduced in the radome to prevent the excitation of surface waves. In the second solution, a superstrate metasurface is designed to synthesize a permittivity tensor optimized to achieve a wide angle impedance matching. In both approaches, the numerical simulations are successfully compared with measurements of a phased array antenna prototype with 100 elements. The wire medium-based solution reveals an effective way for reducing the blind-spot in a wide bandwidth, while the metaradome has been found less suitable for the same purpose.
