Shaping Axis-Symmetric Dual-Reflector Antennas by Combining Conic Sections

Shaping Axis-Symmetric Dual-Reflector Antennas by Combining Conic Sections

A simple procedure for the shaping of axis-symmetric dual-reflector antennas is described. The shaping procedure is based on the consecutive concatenation of local conic sections suited to provide, under geometrical optics (GO) principles, an aperture field with uniform phase, together with a prescr...

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Veröffentlicht in:IEEE transactions on antennas and propagation 2011-03, Vol.59 (3), p.1042-1046
Hauptverfasser: Moreira, Fernando J S, Bergmann, José R
Format: Artikel
Sprache:eng
Schlagworte:
Amplitudes
Antennas
Aperture antennas
Apertures
Applied sciences
Circularity
Conics
Convergence
Delta modulation
Equations
Exact sciences and technology
Feeds
Geometrical optics
Mathematical models
Radiocommunications
reflector antennas
reflector shaping
Telecommunications
Telecommunications and information theory
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Beschreibung
Zusammenfassung:A simple procedure for the shaping of axis-symmetric dual-reflector antennas is described. The shaping procedure is based on the consecutive concatenation of local conic sections suited to provide, under geometrical optics (GO) principles, an aperture field with uniform phase, together with a prescribed amplitude distribution. The procedure has fast numerical convergence and is valid for any circularly symmetric dual-reflector configuration. To illustrate the procedure two representative configurations are investigated. The GO shaping results are validated using accurate method-of-moments analysis.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2010.2103028