Title :
A study of extended hemispherical lenses for a high-gain beam-steering antenna
Author :
Karttunen, Aki ; Ala-Laurinaho, Juha ; Sauleau, Ronan ; Räisänen, Antti V.
Author_Institution :
Sch. of Sci. & Technol., Dept. of Radio Sci. & Eng., Aalto Univ., Aalto, Finland
Abstract :
In this paper, large extended hemispherical lenses are studied for a high-gain beam-steering antenna as a function of directivity of a feed element, relative permittivity of the lens material, and feed offset. Design guidelines necessary for the feed array design are provided. A wide range of permittivities and feed directivities are studied. The lenses are analysed with ray-tracing simulations using a simplified feed radiation pattern.
Keywords :
Analytical models; Antenna feeds; Guidelines; Lenses; Optical materials; Optical polarization; Optical reflection; Pattern analysis; Permittivity; Ray tracing;
Conference_Titel :
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location :
Barcelona, Spain
Print_ISBN :
978-1-4244-6431-9
Electronic_ISBN :
978-84-7653-472-4
