Listar por autor "Alex-Amor, Antonio"
Mostrando ítems 1-7 de 7
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Analytical Circuit Approach for (2+1)D Structures: Application to Spacetime Metasurfaces
Moreno-Rodríguez, Salvador; Pérez-Escribano, Mario
; Padilla, Pablo; Valenzuela-Valdés, Juan Francisco; Alex-Amor, Antonio; Molero, Carlos[et al.] (URSI, 2024-09)
Historically, scientists and engineers have focused their studies on finding analytical models that allow accurate modeling of the electromagnetic response of radiant devices. Commercial software based on numerical ... -
Analytical Framework to Model Reconfigurable Metasurfaces including Lumped Elements.
Pérez-Escribano, Mario; Moreno-Rodríguez, Salvador; Molero, Carlos; Valenzuela-Valdés, Juan Francisco; Padilla, Pablo; Alex-Amor, Antonio; Pérez-Escribano, Mario[et al.] (IEEE Transactions on Circuits and Systems II: Express Briefs, 2023-11-06)
This manuscript introduces an analytical framework for the design of reconfigurable metasurfaces rooted in 2D periodic structures. Incorporating lumped elements into the model streamlines the design process for such devices, ... -
Analytical Method to Model Spatiotemporal Metasurfaces.
Pérez-Escribano, Mario; Moreno-Rodríguez, Salvador; Alex-Amor, Antonio; Valenzuela-Valdés, Juan Francisco; Padilla, Pablo; Molero, Carlos[et al.] (2024)
This work introduces a theoretical framework to develop fully-analytical and multi-modal equivalent circuits that are applicable to spatiotemporal metasurfaces. Here, time is considered a periodic variable. Thus, classical ... -
Gain-Reconfigurable Hybrid Metal-Graphene Printed Yagi Antenna for Energy Harvesting Applications
(2019-04-26)This paper presents a hybrid metal-graphene printed Yagi antenna with reconfigurable gain that operates in the 5.5-GHz band. The balun and the driven elements are made of copper, while the directors are made of graphene. ... -
Glide-Symmetric Pin Phase Shifter implemented in Gap-Waveguide Technology
Palomares-Caballero, Ángel; Alex-Amor, Antonio; Valenzuela-Valdés, Juan Francisco; Luna-Valero, Francisco; Padilla-de-la-Torre, Pablo (2019-09-10)
This paper presents a compact and low-loss waveguide phase shifter based on a pin lattice in glide- symmetric configuration. There is a significant increase in provided phase shift when using a glide-symmetric pin distribution ... -
Phase Shifter for Millimeter-Wave Frequency Range Based on Glide Symmetric Structures
(2019-03-13)The use of glide symmetry in radiofrequency devices to introduce dispersive effects has been recently proposed and demonstrated. One of these effects is to control the propagation constant of the structure. Here, we propose ... -
Reference-Plane Invariant Free Space Dielectric Material Characterization up to 330 GHz.
Moreno-Rodríguez, Salvador; Pérez-Escribano, Mario; Ortiz Ruiz, Sergio; Alex-Amor, Antonio; Plaza-Gallardo, Borja; García-Ruiz, Francisco J.; Molero, Carlos[et al.] (2024)
This paper describes the process followed to implement a system to characterize the complex permittivity of materials in the 10-330 GHz frequency band. Firstly, the method used and the system's calibration process are ...