Akgiray, Ahmed and Weinreb, Sander and Imbriale, William A. and Beaudoin, Christopher (2013) Circular Quadruple-Ridged Flared Horn Achieving Near-Constant Beamwidth Over Multioctave Bandwidth: Design and Measurements. IEEE Transactions on Antennas and Propagation, 61 (3). pp. 1099-1108. ISSN 0018-926X. https://resolver.caltech.edu/CaltechAUTHORS:20130412-155407308
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Abstract
A circular quadruple-ridged flared horn achieving almost-constant beamwidth over 6:1 bandwidth is presented. This horn is the first demonstration of a wideband feed for radio telescopes which is capable of accommodating different reflector antenna optics, maintains almost constant gain and has excellent match. Measurements of stand-alone horn performance reveal excellent return loss performance as well as stable radiation patterns over 6:1 frequency range. Physical optics calculations predict an average of 69% aperture efficiency and 13 K antenna noise temperature with the horn installed on a radio telescope.
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| Additional Information: | © 2013 IEEE. Manuscript received January 21, 2012; revised June 02, 2012; accepted November 09, 2012. Date of publication November 27, 2012; date of current version February 27, 2013. This work was supported in part by NSF Grant AST-0431486 through Cornell University for the SKA Technical Development Program. Part of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA, under a contract with the National Aeronautics and Space Administration. | ||||||||||
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| Subject Keywords: | Aperture antennas; horn antennas; radio astronomy; reflector antenna feeds; reflector antennas; ridge waveguides; ultrawideband antennas | ||||||||||
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| Issue or Number: | 3 | ||||||||||
| Record Number: | CaltechAUTHORS:20130412-155407308 | ||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20130412-155407308 | ||||||||||
| Official Citation: | Akgiray, A.; Weinreb, S.; Imbriale, W.A.; Beaudoin, C., "Circular Quadruple-Ridged Flared Horn Achieving Near-Constant Beamwidth Over Multioctave Bandwidth: Design and Measurements," Antennas and Propagation, IEEE Transactions on , vol.61, no.3, pp.1099,1108, March 2013 doi: 10.1109/TAP.2012.2229953 | ||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||
| ID Code: | 37922 | ||||||||||
| Collection: | CaltechAUTHORS | ||||||||||
| Deposited By: | Jason Perez | ||||||||||
| Deposited On: | 15 Apr 2013 14:46 | ||||||||||
| Last Modified: | 07 Dec 2020 23:28 |
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