Synthesis and rigorous analysis of omnidirectional dual-reflector antennas with shaped main reflector described by local conic sections

Author

Penchel, Rafael A. ; Zang, Sandro R. ; Bergmann, Jose R. ; Moreira, Fernando J S

Author_Institution

CETUC, Pontifical Catholic Univ. of Rio de Janeiro, Rio de Janeiro, Brazil

fYear

2011

fDate

14-15 Nov. 2011

Firstpage

1

Lastpage

4

Abstract

This work presents a formulation for shaping the main reflector of an axis-symmetric 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 confocal conic and the main reflector is shaped to achieve a prescribed far-field radiation pattern. The shaping procedure is based on geometrical optics (GO) principles. For validation of the antenna designs, the wotk employs technique by the accurate method of moments technique.

Keywords

antenna radiation patterns; conical antennas; directive antennas; geometrical optics; method of moments; reflector antennas; antenna designs; arbitrary radiation pattern; axis-displaced confocal conic antenna; axis-symmetric dual reflector antenna; far-field radiation pattern; geometrical optics principles; local conic sections; main reflector; method of moments technique; omnidirectional dual-reflector antennas; shaped main reflector; shaping procedure; subreflector antenna; Antennas; Conferences;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Conference (LAPC), 2011 Loughborough

Conference_Location

Loughborough

Print_ISBN

978-1-4577-1014-8

Electronic_ISBN

978-1-4577-1015-5

Type

conf

DOI

10.1109/LAPC.2011.6114149

Filename

6114149