TY - JOUR 
A1 - Gómez Díaz, Juan Sebastián
AU - Gupta, Shulabh
AU - Gómez Tornero, José Luis
AU - García Vigueras, María
AU - Álvarez Melcón , Alejandro
AU - Caloz, Christophe
T1 - Efecto Talbot espacio-temporal basado en CRLH LWAs: fundamentos y validación experimental
Y1 - 2009
UR - http://hdl.handle.net/10317/1390
AB - A tunable spatio-temporal Talbot imaging phenomenon, based on metamaterial composite right/left-handed (CRLH) leaky-wave antennas (LWAs), is presented. This phenomenon,
reported for the first time in the microwave domain, is based on the combination of the conventional spatial monochromatic
Talbot effect and the transient (polychromatic) character of the pulse radiation phenomenon in the LWA structure. When the elements of a periodic CRLH LWA array are fed simultaneously
by an input pulse, the spatial beams corresponding to different temporal frequencies constructively interfere in space so as to form a self-imaged pattern constituted by narrow Talbot
zones. This Talbot effect is spatial-temporal since the Talbot zones are localized both in space and time. Furthermore, the scanning law property of the LWA is exploited to provide an
off-axis radiation, leading to a tunable Talbot distance. This phenomenon is analyzed theoretically, numerically validated and
experimentally demonstrated for the case of narrow-band pulses
KW - Teoría de la Señal y las Comunicaciones
KW - Efecto Talbot
KW - Pulso radiado
KW - Espacio temporal sintonizable
KW - Arrays
KW - Talbot effect
KW - Microwave
KW - Radiated pulse
KW - Space time tunable
KW - CRLH LWA
KW - Composite antennas right/let-handed (CRLH) leaky-wave (LWA)
KW - Antena CRLH leaky-wave
KW - Microondas
LA - spa
PB - Universidad de Cantabria. Servicio de Publicaciones
ER -