DocumentCode :
980045
Title :
Geodesic lens antennas for low-angle radiation
Author :
Thiele, G.A. ; Rudduck, R.C.
Author_Institution :
Ohio State University, Columbus, OH, USA
Volume :
13
Issue :
4
fYear :
1965
fDate :
7/1/1965 12:00:00 AM
Firstpage :
514
Lastpage :
521
Abstract :
Previous unit-index geodesic lens antenna designs have not been able to produce a lens with good radiation characteristics in or near the plane of the lens rim. This paper extends previous work to permit the design of a geodesic lens for angles within approximately 
of the plane of the lens rim. This is accomplished by requiring that less than the full semicircular aperture be exactly focused, and also by dividing the outer annulus into two or more constant-slope sections. The capability of these lenses for beam elevation positioning is also discussed.
of the plane of the lens rim. This is accomplished by requiring that less than the full semicircular aperture be exactly focused, and also by dividing the outer annulus into two or more constant-slope sections. The capability of these lenses for beam elevation positioning is also discussed.Keywords :
Geodesy; Lens antennas; Aircraft; Antennas and propagation; Apertures; Dielectric materials; Feeds; Lenses; Mathematics; Microwave propagation; Optical design; Radar antennas;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1965.1138483
Filename :
1138483
Link To Document :
