Vidal Rodriguez, Borja; Mengual Chulia, Teresa; Ibáñez-López, Cristina; Martí Sendra, Javier(Institute of Electrical and Electronics Engineers, 2006-12-15)
[EN] An optical beamformer for antenna arrays based on fiber-optical delay lines for feeding subarrays and spatial light modulators to change the radio-frequency phase of independent antenna elements is proposed. The ...
[EN] The performance of a widely tunable phase-based beamformer for phased array antennas using a new technique to cross-polarized the carrier and the sideband, in order to allow the phase control by means of a spatial ...
Jofre, Lluis; Stoltidou, Chrysavgi; Blanch, Sebastián; Mengual Chulia, Teresa; Vidal Rodriguez, Borja; Martí Sendra, Javier; McKenzie, Iain; del Cura, J.M.(Institute of Electrical and Electronics Engineers, 2008-06)
[EN] Optical beamforming networks (OBFNs) are an interesting alternative for the design of wideband antenna arrays, mainly due to their low losses and weight, their high parallel processing capabilities and their electromagnetic ...
[EN] Optomechanical interaction in optical dielectric cavities can be used to generate high-purity microwave tones, giving
rise to optomechanical microwave oscillators. Here, we introduce the main properties of these ...
Sambaraju, Rakesh; Corral González, Juan Luis; Palací López, Jesús; Polo Ramírez, Valentín; Martí Sendra, Javier(Institute of Electrical and Electronics Engineers (IEEE), 2008-07)
Broadband access networks evolution towards 10-Gb/s user connectivity will foster the evolution of the photonic and wireless technologies needed to implement multi-Gb/s wireless links. In particular, provision of data rates ...
Nazemosadat, Elham; Herranz Herruzo, José Ignacio; Gasulla Mestre, Ivana(Institute of Electrical and Electronics Engineers, 2023-11-01)
[EN] We present, for the first time to our knowledge, experimental demonstration of tunable optical beamforming for phased array antennas using a few-mode fiber. The double-clad step-index few-mode fiber is dispersion ...
[EN] We present a novel design of an optical True Time Delay Line based on a 19-core Photonic Crystal Fiber that operates in a broad radiofrequency signal processing range from 1 to 67 GHz on a 10-km link, thus enabling ...
Samaniego-Riera, Diego; Vidal Rodriguez, Borja(Institute of Electrical and Electronics Engineers (IEEE), 2016-12)
A method to enhance the filter slope of Brillouin-based photonic microwave filters is presented. This improvement is achieved by the combination of Brillouin gain and loss responses over phase-modulated signals. The ...
Vallejo Castro, Luis(Universitat Politècnica de València, 2022-11-28)
[ES] El estándar de quinta generación (5G) es la clave potencial para satisfacer el aumento exponencial en la demanda de nuevas aplicaciones, servicios y usuarios. La tecnología 5G ofrecerá una latencia extremadamente baja ...
[EN] Microwave photonics provides attractive solutions for millimeter wave (mmW) signal generation. In this paper, we demonstrate photonically generated multiple mmW signals transmission over a wavelength division multiplexed ...
[EN] A new technique to instantaneously measure microwave frequency and amplitude is presented and experimentally demonstrated. The architecture described is based on a single sideband modulation with suppressed carrier ...
Vidal Rodriguez, Borja; Mengual Chulia, Teresa; Martí Sendra, Javier(Institute of Electrical and Electronics Engineers, 2010-11)
[EN] An optical approach to simultaneously measure the frequency and power of several microwave signals is presented and demonstrated. The system is based on the processing of an inter-ferogram generated by integrating the ...
Sancho Durá, Juan(Universitat Politècnica de València, 2012-07-09)
Los efectos de la luz lenta y luz rápida (SFL) han mostrado unas capacidades excepcionales sobre el control dinámico de la velocidad de la luz en diferentes medios. Una de las motivaciones más estimulantes redica en la ...
A novel approach to extend the frequency range and improve the resolution of photonic techniques for microwave frequency measurements based on frequency-to-power mapping is demonstrated. The simultaneous use of several ...
Min, Rui(Universitat Politècnica de València, 2019-09-02)
[ES] Con el continuo desarrollo de materiales y tecnologías de fabricación durante las últimas tres décadas, la atenuación de la transmisión de las fibras ópticas de polímero (POF) se ha reducido considerablemente. Las POF ...
Pérez López, Daniel(Universitat Politècnica de València, 2016-04-21)
[EN] We propose, for the first time to our knowledge, a software-defined reconfigurable MWP signal processor architecture that can be integrated on a chip and is capable of performing all the main functionalities by suitable ...
[EN] The growing maturity of integrated photonic technology makes it possible to build increasingly large and complex photonic circuits on the surface of a chip. Today, most of these circuits are designed for a specific ...
Pérez-López, Daniel; Sánchez-Gomáriz, Erica; Capmany Francoy, José(Institute of Electrical and Electronics Engineers, 2018)
[EN] We analyze and explore the potential that waveguide-mesh-based architectures used in programmable photonic integrated circuits can be configured to enable true time optical delay lines, which can find applications in ...
Gasulla Mestre, Ivana; Lloret Soler, Juan Antonio; Sancho Durá, Juan; Sales Maicas, Salvador; Capmany Francoy, José(Institute of Electrical and Electronics Engineers (IEEE): OAJ, 2011-04)
We present a brief review of recent accomplishments in the field of Microwave Photonics (MWP). Recent research across a broad range of MWP applications is summarized, including photonic generation of microwave, millimeter, ...
Sánchez Fandiño, Javier Antonio(Universitat Politècnica de València, 2013-07-08)
ES] El objetivo del presente trabajo ha consistido en diseñar un circuito integrado Fotónico completamente funcional, capaz de actuar como receptor de clase B en Un enlace fotónico de microondas modulado en fase. Esto ...