Shaped Omnidirectional Reflector Fed by a Dielectric Lens Associated with a Coaxial Feed Horn

The paper explores an omnidirectional antenna configuration composed of a reflector fed by shaped dielectric lens associated with coaxial TEM horn. A simple formula describes the shape obtained applying Fermat’s principle to control rays’ caustic emerging from interface. Based on geometrical optics (GO) principles, synthesis technique defines radiation pattern in vertical plane. Concatenated conic generatrix. study employs full-wave analysis validate designs and proposed attend two distinct far-field specifications.