NDLI: Designing Cassegrainian reflector and feed system for a cloud radar: The Minimum Blockage Condition

Content Provider	IEEE Xplore Digital Library
Author	Patel, K.
Copyright Year	2011
Description	Author affiliation: Department of Electronics & Telecommunication, Vivekanand Education Society's Institute of Technology, Mumbai, India (Patel, K.)
Abstract	Dual-reflector antennas are considered as pencil beam antennas that can produce radiation identical to searchlight beams. As compared with front-fed configuration, design of dual — reflector geometry is complicated since the parameters like feed location, subreflector size, required taper on subreflector, selection of focal length to diameter ratio of the main reflector, amplitude distribution provided by feed etc. are to be adjusted as per the given specifications. Also the sidelobe suppression effort requires the antenna to be designed for minimum subreflector blockage. In this paper, design of such a Cassegrainian reflector is considered for the Minimum Blockage Condition. Along with the parameters like high gain and low cross-polarization; low VSWR is also one of the prenominal parameter that can be achieved by designing the conical corrugated horn antenna with throat section. The design of Scalar Feed is also discussed. This type of design is easier than the former. For obtaining the radiation diagram, ‘Induced Current Analysis of Reflector Antenna’ software is used.
Starting Page	344
Ending Page	348
File Size	596633
Page Count	5
File Format	PDF
ISBN	9781424486786
e-ISBN	9781424486793
DOI	10.1109/ICECTECH.2011.5941715
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-08
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geometry Cassegrain dual reflector design The Scalar Feed The Minimum Blockage Condition Apertures Feed design for Cassegrains Reflector antennas Antenna feeds Radar antennas
Content Type	Text
Resource Type	Article

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