Estudio de la radiación de antenas CRLH leaky wave excitadas por pulsos temporales
Author
Gómez Díaz, Juan Sebastián; Gupta, Shulabh; Martínez Mendoza, Mónica; Álvarez Melcón , Alejandro; Caloz, ChristopheResearch Group
Grupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT)Knowledge Area
Teoría de la Señal y las ComunicacionesSponsors
Este trabajo ha sido cofinanciado por el Ministerio de Educación y Ciencia (Proyecto: TEC2007-67630-C03-02, Beca: FPU-AP2006-015).Publication date
2008-09Publisher
Garcia Villalba, Luis JavierBibliographic Citation
GÓMEZ DÍAZ, Juan Sebastián et al. Estudio de la radiación de antenas CRLH leaky wave excitadas por pulsos temporales. En: Simposium Nacional de la Unión Científica Internacional de Radio (23º: 2008: Madrid) URSI 2008: XXIII Simposium Nacional de la Unión Científica Internacional de Radio, celebrado del 22 al 24 de septiembre de 2008 en Madrid. Madrid: García Villalba, Luis Javier, 2008. P. 4. ISBN 978-84-612-6291-5Keywords
Antena CRLH leaky-waveRadiación de antenas
Sistemas de banda ultra ancha
Pulso modulado gausiano
Analizador de espectro en tiempo real
Composite right/left handed (CRLH)
Antenna radiation
Ultra Wideband Systems (UWS)
Modulated gaussian pulse
Spectrum analyzer in real time
Abstract
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.
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