27 citations · 59 across the 4 of their papers we have counts for
6 papers
Digital Reconfigurable Intelligent Surfaces: On the Impact of Realistic Reradiation Models
Marco Di Renzo, Abdelhamed Ahmed, Alessio Zappone +4
Reconfigurable intelligent surface (RIS) is an emerging technology that is under investigation for different applications in wireless communications. RISs are often analyzed and op…
Synthesizing quasi-bound states in the continuum in epsilon-near-zero layered materials
Giuseppe Castaldi, Massimo Moccia, Vincenzo Galdi
Bound states in the continuum (BIC) are highly confined, nonradiative modes that can exist in open structures, despite their potential compatibility and coupling with the radiation…
Exceptional Points in the Flatland: A Non-Hermitian Line-Wave Scenario
Massimo Moccia, Giuseppe Castaldi, Francesco Monticone +1
Line waves are recently discovered wave entities that are localized along two directions, and therefore can be viewed as the one-dimensional counterpart of surface waves. These wav…
Surface-Wave Propagation on Non-Hermitian Metasurfaces with Extreme Anisotropy
Marino Coppolaro, Massimo Moccia, Giuseppe Castaldi +2
Electromagnetic metasurfaces enable the advanced control of surface-wave propagation by spatially tailoring the local surface reactance. Interestingly, tailoring the surface resist…
Harnessing Spectral Singularities in Non-Hermitian Cylindrical Structures
Massimo Moccia, Giuseppe Castaldi, Andrea Alù +1
Non-Hermitian systems characterized by suitable spatial distributions of gain and loss can exhibit "spectral singularities" in the form of zero-width resonances associated to real-…
Transformation-Optics-Based Design of a Metamaterial Radome for Extending the Scanning Angle of a Phased Array Antenna
Massimo Moccia, Giuseppe Castaldi, Giuliana D'Alterio +3
We apply the transformation-optics approach to the design of a metamaterial radome that can extend the scanning angle of a phased-array antenna. For moderate enhancement of the sca…