DocumentCode
245034
Title
Offset Gregorian reflector shaping for optimum sensitivity
Author
de Villiers, Dirk I. L. ; Lehmensiek, Robert
Author_Institution
Dept. of Electr. & Electron. Eng., Stellenbosch Univ., Stellenbosch, South Africa
fYear
2014
fDate
3-8 Aug. 2014
Firstpage
585
Lastpage
588
Abstract
Dual offset Gregorian reflector shaping can provide improved sensitivity performance by reducing radiometric noise and improving aperture efficiency. Optimizing the shaped system for optimum sensitivity performance is slow due to the full radiation pattern integration required to calculate the radiometric noise temperature. This paper shows that, in certain situations for a feed-down sub-reflector mount, the optimum aperture efficiency result, which is fast to calculate, guarantees a near optimum sensitivity system.
Keywords
antenna radiation patterns; offset reflector antennas; sensitivity analysis; aperture efficiency; dual offset Gregorian reflector shaping; feed-down subreflector mount; full radiation pattern integration; radiometric noise temperature; sensitivity performance; Antenna radiation patterns; Apertures; Feeds; Noise; Radiometry; Sensitivity; Temperature sensors;
fLanguage
English
Publisher
ieee
Conference_Titel
Electromagnetics in Advanced Applications (ICEAA), 2014 International Conference on
Conference_Location
Palm Beach
Print_ISBN
978-1-4799-7325-5
Type
conf
DOI
10.1109/ICEAA.2014.6903927
Filename
6903927
Link To Document