RT Conference Proceedings
T1 Overcoming the Passivity Bounds in Communications Systems with Spacetime Modulations.
A1 Moreno-Rodríguez, Salvador
A1 Alex-Amor, Antonio
A1 Pérez-Escribano, Mario
A1 Valenzuela-Valdés, Juan Francisco
A1 Padilla, Pablo
A1 Molero, Carlos
K1 Electromagnetismo
K1 Espacio y tiempo
AB In this paper, we exploit the extra degrees of freedom associated with including time as a design variable to create communication scenarios beyond the physical bounds of passive structures. We particularize the results to a time-modulated diffractive one-dimensional grating. By tuning the temporal modulation, we show that two different scenarios can lead to the same output angles but with different output frequencies or incidence angles. These results illustrate the potential of these metastructures as diffractive beamformers and frequency mixers.
YR 2025
FD 2025-04
LK https://hdl.handle.net/10630/38451
UL https://hdl.handle.net/10630/38451
LA eng
NO This work has been supported by grant TED2021-129938BI00 funded by MCIN/AEI/10.13039/501100011033 and bythe European Union NextGenerationEU/PRTR. It has alsobeen supported by grants PID2020-112545RBC54, PDC2022-133900-I00, PDC2023-145862-I00, and IJC2020-043599-I,funded by MCIN/AEI/10.13039/501100011033 and by theEuropean Union NextGenerationEU/PRTR
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026