TY - JOUR A1 - Gómez Díaz, Juan Sebastián AU - Álvarez Melcón , Alejandro AU - Bertuch, Thomas T1 - Antenas CRLH LWA basadas en guía de onda: análisis teórico y demostración experimental Y1 - 2010 UR - http://hdl.handle.net/10317/1399 AB - A novel composite right/left-handed leaky-wave antenna (CRLH LWA), based on periodically loaded parallel-plate waveguides (PPW) is presented. The loading is obtained by a rectangular grid of vertical wires and parallel slots etched in the upper metal plane of the PPW. A novel modal-based iterative circuit is proposed for the complete analysis and design of this type of antennas. The coupling between the antenna and freespace is rigourously modeled using a mode-matching technique, combined with the Floquet’s theorem. This provides a lossy dispersive CRLH unit-cell model, whose values are obtained using a quickly-convergent iterative algorithm. The proposed method is accurate, extremely fast and it takes into account the structure physical dimensions. A CRLH PPW LWA has been designed (without requiring any time consuming full-wave simulation), analyzed and fabricated using the proposed method. Very good agreement has been found between measurements and simulations, validating both, the antenna radiating phenomena and the proposed technique. KW - Teoría de la Señal y las Comunicaciones KW - Antena de comportamiento zurdo-diestro (CRLH) KW - Guía de onda KW - Slot KW - Composite right/left-handed (CRLH) KW - Waveguide KW - Antena leaky wave KW - Via-holes KW - Via-holes LA - spa PB - Universidad del País Vasco ER -