GO Shaping of Omnidirectional Dual-Reflector Antennas with Arbitrary Main-Beam Direction in Elevation Plane by Connecting Conic Sections

Authors:
Open Access
Publisher website
Google Scholar
Abstract
This work discusses an alternative geometrical optics (GO) technique to synthesize omnidirectional dual-reflector antennas with uniform aperture phase distribution together with an arbitrary main-beam direction for the antenna radiation pattern. Sub- and main reflectors are bodies of revolution generated by shaped curves defined by local conic sections consecutively concatenated. The shaping formulation is derived for configurations like ADC (axis-displaced Cassegrain) and ADE (axis-displaced ellipse) omnidirectional antennas. As case studies, two configurations fed by a TEM coaxial horn are designed and analyzed by a hybrid technique based on mode matching and method of moments in order to validate the GO shaping procedure.
Funding Information
  • Financiadora de Estudos e Projetos (01.14.0231.00, 068419/2014-01)
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (01.14.0231.00, 068419/2014-01)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (01.14.0231.00, 068419/2014-01)
  • Fundação de Amparo à Pesquisa do Estado de Minas Gerais (01.14.0231.00, 068419/2014-01)
  • Radio Communications Reference Center (CRR) (01.14.0231.00, 068419/2014-01)

This publication has 10 references indexed in Scilit: