Design of tapered leaky-wave antennas in hybrid waveguide-planar technology for millimeter waveband applications
Author
Gómez Tornero, José Luis; Torre Martínez, Alejandro de la; Cañete Rebenaque, David; Álvarez Melcón , Alejandro; Guglielmi, MarcoResearch Group
Grupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT)Knowledge Area
Teoría de la Señal y las ComunicacionesSponsors
This work was supported in part by Spanish National projects ESP2001-4546-PE and TEC2004-04 313-C02-02/TCM and in part by Regional Séneca projects 2002 PB/4/FS/02 and PMPDI-UPCT-2004.Publication date
2005-08Publisher
IEEE Antennas and Propagation SocietyBibliographic Citation
GÓMEZ TORNERO, José Luis, TORRE MARTÍNEZ, Alejandro de la, CAÑETE REBENAQUE, David, GUGLIEMI, Marco, ÁLVAREZ MELCÓN, Alejandro. Design of Tapered Leaky-Wave Antennas in Hybrid Waveguide-Planar Technology for Millimeter Waveband Applications. IEEE Transactions on Antennas and Propagation, 33 (8): 2563-2577, Agosto 2005. ISSN 0018-926XKeywords
Tecnología del híbrido de circuito impreso y guía de ondasAntena de fuga de ondas
Disminución de antenas
Hybrid waveguide printed circuit technology
Leaky-wave antenna
Millimeter wave antenna
Nivel de lóbulos laterales
Tapering antenna
Sidelobes level control
Abstract
Different types of waveguide leaky-wave antennas,
asymmetrically perturbed with printed-circuits, are studied in
this paper. The capability to modify the leakage constant of the
excited leaky-wave mode, while maintaining unchanged its phase
constant, is studied in detail for each design. Several slot and strip
configurations are proposed, in which the width and the position
of the planar printed circuit perturbation is modified along the
length of the antenna to obtain different tapering topologies. All
of them are mechanically flexible to realize, thus simplifying the
manufacturing process for millimeter wavelengths applications.
The two-dimensional method used for the analysis is accurate
for any geometry of the planar perturbation, and also allows for
the computation of the whole spectrum of modes in these open
waveguides. This makes possible to predict the appearance of
unwanted channel-guide modes, and also allows for the study
of the coupling effect between the desired ...
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