Superando los Límites Pasivos en Sistemas de Comunicaciones con Modulaciones Temporales
Year: 2025
Type: conference-paper
Abstract: This paper details how to exploit the introduction of time as a design variable to enhance the properties of conventional static (time-invariant) spatially-periodic metastructures such as Frequency Selective Surfaces (FSS). Here, we focus on communications scenarios, although most of the discussed concepts are also applicable in radar systems. We show that, by tuning the temporal period in time-modulated 1D metallic gratings, two different diffracted harmonic configurations mn and m'n' can propagate in the same direction (i) with different output frequencies (same incident angles and frequencies), (ii) with identical output frequencies (different incident angles, same incident frequencies), (iii) with identical output frequencies (different incident angles and frequencies). These results reveal the potential of space-time metastructures to act as beamformers and frequency mixers
Authors: Alex Amor, Antonio, Pérez Escribano, Mario, Muriel Barrado, Alfonso Tomás, Moreno Rodríguez, Salvador, Padilla, Pablo, Molero, Carlos
Language: Spanish
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7198280931