From the 1 of 9 linked papers with an AI index.
9 papers
A Dual-Mode FM/AM Modulator Based on a Time-Varying Inverting Integrator
AzalÃa G. Gil, Alfonso T. Muriel-Barrado, Mario Pérez-Escribano +2
The paper presents a dual‑mode FM/AM modulator that uses a time‑varying varactor diode together with an inverting integrator and a microstrip filter, providing analytical, simulate…
Gain and One-Way Propagation in Synthetically Moving non-Foster Gratings
Antonio Alex-Amor, Carlos Molero, Mario G. Silveirinha
In this paper, we analyze the electromagnetic properties of space-time grooved metal surfaces governed by uniform-velocity modulations. We begin by deriving the electromagnetic fie…
Time-Controlled Resonances in 2-D Metasurfaces via Equivalent Circuits
J. Rafael Sánchez-MartÃnez, Mario Pérez-Escribano, Antonio Alex-Amor +2
This work introduces a semi-analytical frequency-domain framework for the analysis of two-dimensional, time-modulated (2+1)-D metasurfaces controlled by PIN diodes. The formulation…
Gamification in Radiocommunications: A Board Game Approach to Boost Engagement and Learning
Ana S. Domenech, Antonio Alex-Amor
Courses in electromagnetism and related technical subjects are often dominated by lecture-heavy instruction and complex mathematical concepts, which can make it difficult for stude…
Temporal Paraxial Optics under Adiabatic Modulations
Antonio Alex-Amor, Carlos Molero
This paper presents a temporal paraxial formulation for the propagation of ultrashort optical pulses in time-modulated media with slowly varying refractive index. By deriving the p…
Transfer ABCD Matrix for Time-Varying Media and Time Crystals
Carlos Molero, Pablo H. Zapata-Cano, Antonio Alex-Amor
This paper introduces a formal definition of the transfer ABCD parameters in time-varying electromagnetic systems. The formal definition comes after the rearrangement of the fields…