EBG enhanced feeds for the improvement of the aperture efficiency of reflector antennas

A. Neto; N. Llombart; G. Gerini; M. Bonnedal; P.J.I. de Maagt

doi:10.1109/TAP.2007.901854

EBG enhanced feeds for the improvement of the aperture efficiency of reflector antennas

A. Neto, N. Llombart, G. Gerini, M. Bonnedal, P.J.I. de Maagt

Electromagnetics

Research output: Contribution to journal › Article › Academic › peer-review

64 Citations (Scopus)

352 Downloads (Pure)

Abstract

We describe the use of electromagnetic bandgap (EBG) super-layers to improve the shape of reflectors illumination function. Following an investigation of the leaky wave pole singularities of the EBG Green's function, the shape of the radiation patterns of small apertures in ground planes are optimized. The maximization of the reflector aperture efficiency can be obtained by properly tuning the super layers geometrical parameters. A prototype of such feed has been designed, manufactured and tested. The results indicate that the inclusion of the EBG, increases the aperture efficiency of the feed+reflector system to values higher than 80%, over a 10% bandwidth. These low profile feeds are compatible with printed circuit board and/or integrated technology.

Original language	English
Pages (from-to)	2185-2193
Number of pages	9
Journal	IEEE Transactions on Antennas and Propagation
Volume	55
Issue number	8
DOIs	https://doi.org/10.1109/TAP.2007.901854
Publication status	Published - 2007

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title = "EBG enhanced feeds for the improvement of the aperture efficiency of reflector antennas",

abstract = "We describe the use of electromagnetic bandgap (EBG) super-layers to improve the shape of reflectors illumination function. Following an investigation of the leaky wave pole singularities of the EBG Green's function, the shape of the radiation patterns of small apertures in ground planes are optimized. The maximization of the reflector aperture efficiency can be obtained by properly tuning the super layers geometrical parameters. A prototype of such feed has been designed, manufactured and tested. The results indicate that the inclusion of the EBG, increases the aperture efficiency of the feed+reflector system to values higher than 80%, over a 10% bandwidth. These low profile feeds are compatible with printed circuit board and/or integrated technology.",

author = "A. Neto and N. Llombart and G. Gerini and M. Bonnedal and {de Maagt}, P.J.I.",

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T1 - EBG enhanced feeds for the improvement of the aperture efficiency of reflector antennas

AU - Neto, A.

AU - Llombart, N.

AU - Gerini, G.

AU - Bonnedal, M.

AU - de Maagt, P.J.I.

PY - 2007

Y1 - 2007

N2 - We describe the use of electromagnetic bandgap (EBG) super-layers to improve the shape of reflectors illumination function. Following an investigation of the leaky wave pole singularities of the EBG Green's function, the shape of the radiation patterns of small apertures in ground planes are optimized. The maximization of the reflector aperture efficiency can be obtained by properly tuning the super layers geometrical parameters. A prototype of such feed has been designed, manufactured and tested. The results indicate that the inclusion of the EBG, increases the aperture efficiency of the feed+reflector system to values higher than 80%, over a 10% bandwidth. These low profile feeds are compatible with printed circuit board and/or integrated technology.

AB - We describe the use of electromagnetic bandgap (EBG) super-layers to improve the shape of reflectors illumination function. Following an investigation of the leaky wave pole singularities of the EBG Green's function, the shape of the radiation patterns of small apertures in ground planes are optimized. The maximization of the reflector aperture efficiency can be obtained by properly tuning the super layers geometrical parameters. A prototype of such feed has been designed, manufactured and tested. The results indicate that the inclusion of the EBG, increases the aperture efficiency of the feed+reflector system to values higher than 80%, over a 10% bandwidth. These low profile feeds are compatible with printed circuit board and/or integrated technology.

U2 - 10.1109/TAP.2007.901854

DO - 10.1109/TAP.2007.901854

M3 - Article

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EP - 2193

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 8

ER -

EBG enhanced feeds for the improvement of the aperture efficiency of reflector antennas

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