A novel leaky-wave antenna combining an image NRD guide and a strip circuit
Área de conocimiento
Teoría de la Señal y las ComunicacionesPatrocinadores
This work was supported by Spanish National Projects ESP2001-4546-PE and TIC2000-0591- C03-03, and Regional Seneca Project 2002 PB/4/FS/02.Fecha de publicación
2005-08Editorial
IEEE Antennas and Propagation SocietyCita bibliográfica
GÓMEZ TORNERO, José Luis, PASCUAL GARCÍA, Juan, ÁLVAREZ MELCÓN, Alejandro. A Novel Leaky-Wave Antenna Combining an Image NRD Guide and a Strip Circuit.. IEEE Antennas and Wireless Propagation Letters , 4: 289-292, Agosto 2005. ISSN 1536-1225Palabras clave
Antena de fuga de ondasAntena de onda milimétrica
Guía NRD
Tecnología de circuito impreso
Antena cónica
Leaky wave antenna (LWA)
Millimeter wave antenna
NRD (nonradiative dielectric) guide
Printed circuit technology
Tapered antenna
Resumen
This letter presents a novel leaky-wave antenna which
combines an image NRD (nonradiative dielectric) guide and a
printed strip circuit. The proposed structure allows for an easier,
cheaper and more flexible tapering mechanism than all previous
leaky-wave antennas in NRD technology. The working mechanism
is explained, and two different tapering strip-circuit topologies
are proposed. Cosine tapered illuminations are designed using a
two-dimensional leaky-mode analysis technique. Simulations with
high-frequency structure simulator (HFSS) three-dimensional
analysis are presented for validation purposes. Also, the influence
of the feeding transitions for each printed-circuit design is studied.
Results show the feasibility of one of the proposed designs, leading
to a tapered radiation pattern with sidelobes level below 20 dB.
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