20 citations · 22 across the 8 of their papers we have counts for
9 papers
Physically Consistent Modeling of Dispersive Time-Modulated Reconfigurable Intelligent Surfaces for Wideband OFDM
Ivan Iudice, Donatella Darsena, Giacinto Gelli +1
The elements of a reconfigurable intelligent surface (RIS) are commonly modeled either as frequency-selective time-invariant reflectors or as instantaneous time-varying reflection…
Analytic Inverse Design of Temporal Metamaterials via Space-Time Duality
Giuseppe Castaldi, Marino Coppolaro, Massimo Moccia +3
Temporal metamaterials, created by modulating the refractive index in time, offer powerful means of controlling wave propagation but still lack a systematic design methodology. Her…
A Robust Two-Stage Protocol for STAR-RIS-Aided ISAC Networks: Joint Beamforming and Mode Optimization
Ziming Liu, Tao Chen, Giacinto Gelli +2
This paper investigates the robust design of integrated sensing and communication (ISAC) systems assisted by simultaneously transmitting and reflecting reconfigurable intelligent s…
Metasurfaces Enable Active-Like Passive Radar
Mingyi Li, Jiawen Xu, Hanting Zhao +5
Passive radars (PRs) provide a low-cost and energy-efficient approach to object detection by reusing existing wireless transmissions instead of emitting dedicated probing signals.…
Optimal transmit field distribution for partially obstructed continuous radiating surfaces in near-field communication systems
Francesco Verde, Donatella Darsena, Marco Di Renzo +1
This paper deals with the optimal synthesis of aperture fields for (radiating) near-field communications in obstructed environments. A physically consistent model based on knife-ed…
Randomized Space-Time Stacked Intelligent Metasurfaces for Massive Multiuser Downlink Connectivity
Donatella Darsena, Ivan Iudice, Vincenzo Galdi +1
Stacked intelligent metasurfaces (SIMs) represent a key enabler for next-generation wireless networks, offering beamforming gains while significantly reducing radio-frequency chain…
Airy beams for radiative near-field communications: Fundamentals, potentials, and limitations
Donatella Darsena, Francesco Verde, Marco Di Renzo +1
In next-generation wireless networks, the combination of electrically large radiating apertures and high-frequency transmission extends the radiating near-field region around the t…
Design of stacked intelligent metasurfaces with reconfigurable amplitude and phase for multiuser downlink beamforming
Donatella Darsena, Francesco Verde, Ivan Iudice +1
A novel technology based on stacked intelligent metasurfaces (SIM) has recently emerged. This platform involves cascading multiple metasurfaces, each acting as a digitally programm…
Integrating sensing and communications: Simultaneously transmitting and reflecting digital coding metasurfaces
Francesco Verde, Vincenzo Galdi, Lei Zhang +1
Wireless networks are undergoing a transformative shift, driven by the crucial factors of cost effectiveness and sustainability. Digital coding metasurfaces (DCMs) might play a key…