DocumentCode
2933577
Title
Design and measurements of dual-polarized wideband constant-beamwidth quadruple-ridged flared horn
Author
Akgiray, Ahmed ; Weinreb, Sander ; Imbriale, William
Author_Institution
Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
fYear
2011
fDate
3-8 July 2011
Firstpage
1135
Lastpage
1138
Abstract
A quad-ridged, flared horn achieving nearly constant beamwidth and excellent return loss over a 6-1 frequency bandwidth is presented. Radiation pattern measurements show excellent beamwidth stability from 2 to 12 GHz. Measured return loss is >; 10 dB over the entire band and >; 15 dB from 2.5 to 11 GHz. Using a custom physical optics code, system performance of a radio telescope is computed and predicted performance is average 70% aperture efficiency and 10 Kelvin of antenna noise temperature.
Keywords
antenna radiation patterns; horn antennas; radiotelescopes; antenna noise temperature; dual-polarized wideband constant-beamwidth quadruple-ridged flared horn; frequency 2 GHz to 12 GHz; radiation pattern measurements; radio telescope; temperature 10 K; Antenna radiation patterns; Apertures; Cutoff frequency; Extraterrestrial measurements; Feeds; Loss measurement; Radio astronomy;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location
Spokane, WA
ISSN
1522-3965
Print_ISBN
978-1-4244-9562-7
Type
conf
DOI
10.1109/APS.2011.5996483
Filename
5996483
Link To Document