DocumentCode
470986
Title
Optimization of 200-800MHz Eleven Feed for GMRT
Author
Karandikar, Y.B. ; Kilda, P.S.
Author_Institution
Chalmers Univ. of Technol., Goteborg
fYear
2007
fDate
11-16 Nov. 2007
Firstpage
1
Lastpage
6
Abstract
This paper discusses in brief the electrical design of the Eleven feed for the parabolic reflector antennas of Giant Meterwave Radio Telescope (GMRT-India) optimized for 200 to 800 MHz bandwidth. Paper also gives the comparison between the simulated and measured antenna input reflection coefficient and radiation patterns. The measured S11 of the feed is less than -8 dB and the computed total aperture efficiency including the mismatch losses, is better than -3.2 dB over desired bandwidth for the reflector antennas of GMRT having 62.5deg of half subtended angle.
Keywords
UHF antennas; antenna radiation patterns; broadband antennas; log periodic antennas; radiotelescopes; reflector antenna feeds; Eleven feed; GMRT-India optimization; Giant Meterwave Radio Telescope; antenna input reflection coefficient measurement; electrical design; parabolic reflector antenna; radiation pattern; wide band antenna technology; Eleven feed; folded dipole; log-periodic arrays;
fLanguage
English
Publisher
iet
Conference_Titel
Antennas and Propagation, 2007. EuCAP 2007. The Second European Conference on
Conference_Location
Edinburgh
Print_ISBN
978-0-86341-842-6
Type
conf
Filename
4458703
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