Memorias de investigación
Artículos en revistas:
Study and Design of a Diferentially Fed Tapered Slot Antenna Array
Año:2010
Áreas de investigación
  • Ingenierías
Datos
Descripción
The results of a parametric study and design of an ultrawideband dual-polarized array of differentially-fed tapered slot antenna elements are presented. We examine arrays of bunny-ear antennas and discuss the capabilities and limitations of differential antenna technology. As we focus on radio astronomical applications, the absence of a balancing-feed circuit not only reduces the first-stage noise contribution associated to losses in the feed, but also leads to a cost reduction. Common-modes are supported by the antenna structure when a third conductor is present, such as a ground plane. We demonstrate that anomalies may occur in the differential-mode scan impedance. Knowledge of both types of scan impedances, differential and common mode, is required to properly design differential LNAs and to achieve optimal receiver sensitivity. A compromise solution is proposed based on the partial suppression of the undesired common-mode currents through a (low loss) balancing-dissipation technique. A fully steerable design up to 45 in both principal planes is achieved.
Internacional
Si
JCR del ISI
Si
Título de la revista
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
ISSN
0018-926X
Factor de impacto JCR
2,011
Información de impacto
Volumen
58
DOI
Número de revista
1
Desde la página
68
Hasta la página
78
Mes
ENERO
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Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: DIEMAG: Desarrollo e Investigación Electromagnética
  • Departamento: Ingeniería Audiovisual y Comunicaciones