TY - JOUR A1 - Gómez Díaz, Juan Sebastián AU - Gupta, Shulabh AU - Martínez Mendoza, Mónica AU - Álvarez Melcón , Alejandro AU - Caloz, Christophe T1 - Estudio de la radiación de antenas CRLH leaky wave excitadas por pulsos temporales Y1 - 2008 UR - http://hdl.handle.net/10317/1368 AB - A new time-domain Green’s function approach is used to characterize a composite right/left handed (CRLH) leakywave structure as a function of time under ultra-short modulated pulse excitation. This analysis is efficiently performed in the far-field region for both, a single CRLH element and for an array. Several novel broadband applications, such as a real-time spectrum analyzer (RTSA) (which exploits the unique frequencyspace mapping conversion of the CRLH) or an instantaneous radar scanning (based on the time-frequency relation of chirpmodulated pulses), are presented and discussed. Full-wave simulations and measurements are provided to validate the results. The semi-analytical formulation developed is compact, flexible and fast, avoiding stability conditions as in other completely numerical time-domain methods. KW - Teoría de la Señal y las Comunicaciones KW - Antena CRLH leaky-wave KW - Radiación de antenas KW - Sistemas de banda ultra ancha KW - Pulso modulado gausiano KW - Analizador de espectro en tiempo real KW - Composite right/left handed (CRLH) KW - Antenna radiation KW - Ultra Wideband Systems (UWS) KW - Modulated gaussian pulse KW - Spectrum analyzer in real time LA - spa PB - Garcia Villalba, Luis Javier ER -