DocumentCode
1447017
Title
Omnidirectional ADE antenna with a GO-shaped main reflector for an arbitrary far-field pattern in the elevation plane
Author
Bergmann, Jose R. ; Moreira, F.J.S.
Author_Institution
Center for Telecommun. Studies, Pontifical Catholic Univ. of Rio de Janeiro, Rio de Janeiro, Brazil
Volume
3
Issue
7
fYear
2009
fDate
10/1/2009 12:00:00 AM
Firstpage
1028
Lastpage
1035
Abstract
This work presents a formulation for shaping the main reflector of a dual-reflector antenna designed to offer an omnidirectional coverage with an arbitrary radiation pattern in the vertical plane. The subreflector is generated by an axis-displaced ellipse and the main reflector is shaped to achieve a prescribed far-field radiation pattern. The shaping procedure is based on geometrical optics (GO) principles. Two distinct far-field ray structures are investigated. The GO-shaping results are validated by an analysis using the accurate method of moments technique.
Keywords
antenna radiation patterns; geometrical optics; method of moments; reflector antennas; axis-displace ellipse antenna; dual-reflector antenna; far-field radiation pattern; geometrical optics principle; method of moments technique; omnidirectional ADE antenna; vertical elevation plane;
fLanguage
English
Journal_Title
Microwaves, Antennas & Propagation, IET
Publisher
iet
ISSN
1751-8725
Type
jour
DOI
10.1049/iet-map.2008.0171
Filename
5256097
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