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

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 a shaped dielectric lens associated with a coaxial TEM horn. A simple formula describes the lens shape obtained by applying Fermat’s principle to control the rays’ caustic emerging from the dielectric interfac...

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Bibliographic Details
Published in:International journal of antennas and propagation Vol. 2023; pp. 1 - 9
Main Authors: Bergmann, J. R., Patinos, L. S.
Format: Journal Article
Language:English
Published: New York Hindawi 23-05-2023
Hindawi Limited
Subjects:
Antenna radiation patterns
Antennas
Aperture
Configurations
Dielectrics
Far fields
Fermat principle
Geometrical optics
Lenses
Omnidirectional antennas
Radiation
Symmetry
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Summary:The paper explores an omnidirectional antenna configuration composed of a reflector fed by a shaped dielectric lens associated with a coaxial TEM horn. A simple formula describes the lens shape obtained by applying Fermat’s principle to control the rays’ caustic emerging from the dielectric interface. Based on geometrical optics (GO) principles, a synthesis technique defines the reflector shape to control the antenna radiation pattern in the vertical plane. Concatenated conic describes the reflector generatrix. The study employs a full-wave analysis to validate the designs and explores the proposed configuration to attend two distinct far-field specifications.
ISSN:1687-5869
1687-5877
DOI:10.1155/2023/2729945