Additional antenna design options made available by subreflector concept for converting cylindrical waves into spherical waves. Waves used to feed main reflector that shapes radiation pattern into pencil beam for point-to-point communication or into fan beam for aircraft tracking, space surveillance, or directional beacon transmission.
Antenna Subreflector Fed by a Line Source
NASA Tech Briefs ; 8 , 4
01.04.1985
Sonstige
Keine Angabe
Englisch
Extension of Subreflector Increases Antenna Efficiency
NTRS | 1987
|A dichroic subreflector for cassegrain antenna systems
NTRS | 1964
|Dichroic Subreflector for Satellite Communications Antenna Applications
British Library Conference Proceedings | 1989
|Dual Gridded Subreflector Investigation
British Library Conference Proceedings | 2005
|Cassini Frequency Selective Subreflector Development
NTRS | 1994
|