Exploiting Intrinsic Dispersion of Metamaterials for Designing Broadband Aperture Antennas: Theory and Experimental Verification (CROSBI ID 226331)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Ramaccia, Davide ; Barbuto, Mirko ; Monti, Alessio, Verrengia, A. ; Trotta, Fabrizio, A ; Muha, Damir ; Hrabar, Silvio ; Bilotti, Filiberto ; Toscano, Alesssandro
engleski
Exploiting Intrinsic Dispersion of Metamaterials for Designing Broadband Aperture Antennas: Theory and Experimental Verification
The intrinsic frequency dispersion has usually been considered as a relevant drawback of metamaterials, limiting their appli- cation to narrowband microwave components. However, we have recently demonstrated that a particular metam aterial-based lens, consisting of a combination of an epsilon-near- zero (ENZ) material and air, is able to enhance the gain of short horn antennas over a broad frequency range. This result was achieved by exploiting the dispersive nature of ENZ metamaterials. In this communication, we further discuss the latter aspect, giving more details about the physic al mechanism enabling broadband operation of shortened horns loaded with ENZ–air lenses. The discussion is supported by a set of experimental results obtained on a fabricated prototype
antenna radiation patterns ; aperture antennas ; electromagnetic metamaterials ; gain control ; horn antennas
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
64 (3)
2016.
1141-1146
objavljeno
0018-926X
10.1109/TAP.2016.2521871