NDLI: The curved passive reflector

Content Provider	IEEE Xplore Digital Library
Author	Bedrosian, E.
Copyright Year	1955
Abstract	The curved passive reflector is analyzed theoretically by the aperture-field method and the results are presented in the form of gain characteristics and radiation patterns. It is seen that curving the reflector produces a focusing effect in addition to the basic diffraction phenomenon, thereby providing increased gain as compared with the flat reflector. The limiting value for the flat reflector gain is 6 db while the gain of the curved reflector increases continually with reflector size when properly illuminated. Radiation patterns are computed and it is shown that the effect of reducing tower height is to widen the main lobe and to move the side lobes outward and depress them. It is concluded that, in general, the curved reflector causes lower side lobes than the flat reflector. The dish illumination is shown to be relatively unimportant with respect to the total antenna gain but the side lobe levels are reduced when the dish illumination is made more uniform.
Starting Page	168
Ending Page	173
Page Count	6
File Size	527829
File Format	PDF
ISSN	00961973
Volume Number	3
Issue Number	4
Language	English
Publisher Date	1955-10-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lighting Poles and towers Apertures Diffraction Microwave antennas Antenna radiation patterns Gain Microwave devices Reflector antennas Performance analysis
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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