Analysis of metallic space-time gratings using Lorentz transformations

A Alex-Amor, C Molero, MG Silveirinha - Physical Review Applied, 2023 - APS
This paper presents an analytical framework for the study of scattering and diffraction
phenomena in space-time-modulated metallic gratings. Using a Lorentz transformation, it is …

Time-periodic metallic metamaterials defined by floquet circuits

S Moreno-Rodríguez, A Alex-Amor, P Padilla… - IEEE …, 2023 - ieeexplore.ieee.org
In this paper, we study the scattering and diffraction phenomena in time-modulated
metamaterials of metallic nature by means of Floquet equivalent circuits. Concretely, we …

Analytical equivalent circuits for three-dimensional metamaterials and metagratings

A Alex-Amor, S Moreno-Rodríguez, P Padilla… - Physical Review …, 2023 - APS
Recently, three-dimensional (3D) metamaterials have undergone a revolution driven mainly
by the popularization of 3D-printing techniques, which has enabled the implementation of …

Theory and Design of Space-Time Metallic Metasurfaces for Wireless Communications

S Moreno-Rodríguez, A Alex-Amor, P Padilla… - arXiv preprint arXiv …, 2023 - arxiv.org
This paper details a class of metal-based space-time metasurfaces for application in
wireless communications scenarios. Concretely, we describe space-time metasurfaces that …

Space-time metallic metasurfaces for frequency conversion and beamforming

S Moreno-Rodríguez, A Alex-Amor, P Padilla… - Physical Review …, 2024 - APS
This paper details a class of metal-based space-time metasurfaces for application in
wireless communications scenarios. Concretely, we describe space-time metasurfaces that …

[PDF][PDF] Analytical equivalent circuits for 3D metamaterials and metagratings

A Alex-Amor, S Moreno-Rodrıguez… - arXiv preprint Arxiv …, 2023 - researchgate.net
In recent times, three-dimensional (3D) metamaterials have undergone a revolution driven
mainly by the popularization of 3D-printing techniques, which has enabled the …

Harnessing the natural resonances of time-varying dispersive interfaces

C Rizza, MA Vincenti, G Castaldi… - arXiv preprint arXiv …, 2024 - arxiv.org
Space-time modulation of electromagnetic parameters offers novel exciting possibilities for
advanced field manipulations. In this study, we explore wave scattering from a time-varying …

Transient States to Control the Electromagnetic Response of Space-time Dispersive Media

PH Zapata-Cano, S Moreno-Rodríguez… - arXiv preprint arXiv …, 2024 - arxiv.org
In this paper, we study the dynamic formation of transients when plane waves impinge on a
dispersive slab that abruptly changes its electrical properties in time. The time-varying slab …

Analytical Circuit Models: From Purely Spatial to Space-Time Structures

S Moreno-Rodríguez, A Alex-Amor… - 2024 18th European …, 2024 - ieeexplore.ieee.org
This work presents an insight into a theoretical framework for deriving fully-analytical and
multimodal equivalent circuits for periodic structures, FSSs and general metasurfaces. By …

Analytical Method to Model Spatiotemporal Metasurfaces.

This work introduces a theoretical framework to develop fully-analytical and multi-modal
equivalent circuits that are applicable to spatiotemporal metasurfaces. Here, time is …