Penchel, Rafael A. [UNESP]Zang, Sandro R.Bergmann, Jose R.Moreira, Fernando J. S.2018-11-262018-11-262018-01-01International Journal Of Antennas And Propagation. London: Hindawi Ltd, 9 p., 2018.1687-5869http://hdl.handle.net/11449/160166This 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.9engArtigo10.1155/2018/1409716WOS:000427786300001Acesso abertoWOS000427786300001.pdf34126766696402640000-0002-7298-4518