Title :
Scan-Optimized Integrated Lens Antennas
Author :
van der Vorst, M.J.M. ; de Maagt, P.J.I. ; Herben, M.H.A.J.
Author_Institution :
Eindhoven University of Technology, Faculty of Electrical Engineering P.O. Box 513, 5600 MB Eindhoven, The Netherlands, e-mail: M.J.M.v.d.Vorst@ele.tue.nl
Abstract :
In this paper the scan properties of integrated lens antennas with a quarter-wavelength matching layer are analyzed. For beam scanning on and within a cone, optimum feed positions are determined. It appears that for beam scanning on a cone the elliptical lens is the best choice if a small scan angle is required while the extended hemispherical lens should be used in case of a large scan angle. For beam scanning within a cone it is recommended to select an elliptical lens if a large average directivity is required while the extended hemispherical lens appears to be the best choice if a small variation in the directivity is important.
Keywords :
Dielectric materials; Dipole antennas; Feeds; Lenses; Millimeter wave technology; Optical materials; Optical reflection; Radio astronomy; Reflector antennas; Space technology;
Conference_Titel :
Microwave Conference, 1997. 27th European
Conference_Location :
Jerusalem, Israel
DOI :
10.1109/EUMA.1997.337751
