Omnidirectional Dual-reflector Antenna with a GO Shaped Main Reflector for an Arbitrary Far-field Pattern in the Elevation Plane

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 4Language: englishTyp: PDF

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Zang, S. R.; Bergmann, J. R. (PUC-Rio, CETUC, Rua Marques de São Vicente 225, 22453-900, Rio de Janeiro, Brazil)
Moreira, F. J. S. (UFMG, Av. Antônio Carlos 6627, 31270-901, Belo Horizonte, MG, Brazil)

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 axisdisplaced 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. The GO shaping results are validated by analysis provided by the accurate method of moments technique.