High aperture efficiency wide corrugations bull’s-eye antenna working at 60 GHz
Fecha
2017Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Impacto
|
10.1109/TAP.2017.2696423
Resumen
A full metallic Bull’s-Eye (BE) antenna operating at 60 GHz is numerically and experimentally analyzed. The antenna presents wide grooves, rather than narrow ones, which support higher order resonances that lead to a large gain enhancement with just a pair of corrugations, achieving an overall miniaturization and increase of its aperture efficiency. In addition, an annular soft surface of 5 groov ...
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A full metallic Bull’s-Eye (BE) antenna operating at 60 GHz is numerically and experimentally analyzed. The antenna presents wide grooves, rather than narrow ones, which support higher order resonances that lead to a large gain enhancement with just a pair of corrugations, achieving an overall miniaturization and increase of its aperture efficiency. In addition, an annular soft surface of 5 grooves is placed on the edge of the antenna, giving rise to a slight increase of the gain, reduced side lobe level as well as reduced end-fire and backward radiation, when compared with an antenna without soft surface and another antenna with narrow corrugations. A narrow beam antenna with a gain of 19 dBi and nearly 16 dB side lobe level and 10.8 deg beamwidth is numerically obtained at the operating frequency. Measurements and numerical results show overall good agreement, with an experimental gain of 20.2 dBi, 13.2 dB side lobe level, 10.4 deg beamwidth and 32% of aperture efficiency. [--]
Materias
Bull’s-eye (BE) antenna,
High aperture efficiency,
Miniaturized,
Soft surface (SS),
Wide corrugations
Editor
IEEE
Publicado en
IEEE Transactions on Antennas and Propagation, vol. 65, no. 6, June 2017
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC
Versión del editor
Entidades Financiadoras
M.B. acknowledges support by the Spanish Ministerio de Economía y
Competitividad (MINECO) under contract RYC-2011-08221. U.B
acknowledges the funding provided by UPNA via the FPI PhD grant program.