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Listar Ingeniería de Comunicaciones - (IC) por autor "Valenzuela-Valdés, Juan Francisco"
Mostrando ítems 1-6 de 6
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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 ... -
Broadband parasitic modeling of diodes in the millimeter-wave band
Pérez-Escribano, Mario; Palomares-Caballero, Ángel; Padilla, Pablo; Valenzuela-Valdés, Juan Francisco; Márquez-Segura, Enrique
(Elsevier, 2024-03-06)
This paper presents the extraction of an equivalent circuit model for PIN diodes and varactors in the millimeter waves. This circuit model is handy for new communication applications involving, for example, electronic beam ... -
Novel Frequency-Selective Surface Absorber based on Laser-Induced Graphene
Ortiz Ruiz, Sergio; Moreno-Rodríguez, Salvador; Pérez-Escribano, Mario; Palomares-Caballero, Ángel; Pasadas, Francisco; Valenzuela-Valdés, Juan Francisco; García-Ruiz, Francisco J.; Molero, Carlos[et al.] (URSI, 2024-09)
Este trabajo propone una técnica para el diseño de absorbedores de microondas y ondas milimétricas mediante la combinación de superficies selectivas en frecuencia (FSSs) y grafeno inducido por láser (LIG). En primera ... -
Optimized Varactor Parasitic Modelling in the Millimeter-Wave Band.
Pérez-Escribano, Mario; Palomares-Caballero, Ángel; Padilla, Pablo; Valenzuela-Valdés, Juan Francisco (2023)
This work explores the utilization of varactors in the millimeter-wave (mm-wave) band, specifically focusing on their application in voltage-controlled reconfigurable devices. Varactors, or variable capacitors, can adjust ...