Abstract
Conventional hat feeds have the best performance in very deep reflector antennas because of their wide beamwidth. They also have the advantage of being self-supported. The disadvantage of this type of feed is its wide beamwidth. To solve this problem, a new hat feed is proposed that can be used as prime-focus feed for Fresnel zone plate antennas. The novel design, called parabolic hat feed is achieved by appropriate shaping of the hat feed profile. © 2008 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2009.
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