DocumentCode :
1027958
Title :
An offset dual shaped reflector with 84.5 percent efficiency
Author :
Cha, Alan G.
Author_Institution :
Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, USA
Volume :
31
Issue :
6
fYear :
1983
fDate :
11/1/1983 12:00:00 AM
Firstpage :
896
Lastpage :
902
Abstract :
The theoretical and experimental study of a 1.5 m offset dual shaped reflector at 31.4 GHz is summarized. An efficiency of 84.5 percent, a possible record for reflector antennas of this size, was ascertained through careful measurements. For larger low noise reflector systems, a 2 to 3 dB improvement in gain over noise temperature ratio 
performance over the state-of-the-art ultralow noise ground stations and 90 percent or better aperture efficiency now appear feasible.
performance over the state-of-the-art ultralow noise ground stations and 90 percent or better aperture efficiency now appear feasible.Keywords :
Millimeter-wave antennas; Offset reflector antennas; Reflector antennas, offset; Aperture antennas; Feeds; Land surface temperature; Lighting; Noise shaping; Physical optics; Reflector antennas; Satellite ground stations; Signal to noise ratio; Space technology;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1983.1143157
Filename :
1143157
Link To Document :
