NDLI: Comparative analysis of cylindrical reflectors of ideal and approximately parabolic shape

Content Provider	IEEE Xplore Digital Library
Author	Vinogradov, S.S. Green, A.J. Campbell-Wilson, D. Leung, M. Vinogradova, E.D. Bunton, J.D. Kesteven, M.J.
Copyright Year	2005
Description	Author affiliation: Sch. of Phys., Sydney Univ., NSW, Australia (Vinogradov, S.S.; Green, A.J.; Campbell-Wilson, D.; Leung, M.)
Abstract	The performance of a cylindrical reflector antenna of approximately parabolic profile is investigated. The theoretical simulations implement both rigorous method of regularization and physical optics approaches. The complex-point source concept is used to simulate the tapered illumination. The ideal parabolic profile is approximated by a set of 27V straight line segments. A long electric dipole may be moveable from focal line to allow us to examine the impact of focal shifts on the overall performance of the reflector antennas. The methods may be applied to various geometrical and electrical parameters for reflector antennas (D//spl lambda/ /spl les/500, p = F/D /spl ges/ 0.1) but they have been mainly used to perform analysis of the giant cylindrical reflector antenna (Molonglo Observatory Synthesis Telescope, MOST) of the University of Sydney, which is located in Australia near Canberra. It was shown that the design of this antenna is potentially capable of increasing its operating frequency from the present 843 MHz to 2 GHz, without significant loss in forward gain or distortion of the radiation pattern.
Sponsorship	Eur. Office of Aerosp. Res. and Dev. of the USAF IEEE Region 8 Office State Res. Inst. on Radar Sys. "Kvant-Radiolokatsiya" (Kyiv. Ukraine) Joint Stock Co. "TOPAZ" (Donetsk, Ukraine) Sci.-Production Co. "TERA" (Kyiv, Ukraine) Sci.-Production Co. "ROMSAT" (Kyiv, Ukraine) Joint Stock Co. "INCOM" (Kyiv, Ukraine)
Starting Page	202
Ending Page	205
File Size	619581
Page Count	4
File Format	PDF
ISBN	0780392612
DOI	10.1109/ICATT.2005.1496924
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-24
Publisher Place	Ukraine
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Observatories Shape Dipole antennas Physical optics Lighting Telescopes Reflector antennas Frequency Performance analysis Australia
Content Type	Text
Resource Type	Article

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