Fundamental-mode Leaky-Wave Antenna (LWA) using slotline and Split-Ring-Resonator (SRR)-based metamaterials
Zamora González, Gerard (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Zuffanelli, Simone (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Paredes, Ferran (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Herraiz-Martínez, Francisco Javier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Martín, Ferran (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Bonache Albacete, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)

Date:	2013
Abstract:	A new composite right/left-handed (CRLH) slotline leaky-wave antenna (LWA) is proposed. The antenna, implemented by loading a slotline with split-ring resonators (SRRs), is designed to exhibit a balanced dispersion relation, with a continuous transition between the left-handed and the right-handed bands at 2. 5 GHz. Since the periodicity of the structure is much less than a wavelength, the proposed LWA belongs to the family of quasi-uniform LWAs, and it radiates from the fundamental mode (contrary to periodic LWAs). Measured and simulated radiation patterns, gain, and scanning angle are reported for a 17-cell LWA. The experimental results demonstrate the potential of the LWA to continuously radiate from backward (- 50°) to forward (+60°) scanning angles, with maximum gains of 7. 1 and 11. 3 dB in the left- and right-handed bands, respectively, and specular radiation patterns.
Grants:	Ministerio de Ciencia e Innovación TEC2010-17512 Ministerio de Ciencia e Innovación CSD2008-00066 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-421
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Leaky-wave antennas (LWAs) ; Metamaterials ; Split Ring Resonator (SRR) ; Slot line ; Coplanar waveguide (CPW)
Published in:	IEEE antennas and wireless propagation letters, Vol. 12 (Oct. 2013) , p. 1424-1427, ISSN 1536-1225

DOI: 10.1109/LAWP.2013.2287525

Postprint 5 p, 439.2 KB

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