An Offset Spherical Tri-Reflector Antenna

Fumio WATANABE  Yoshihiko MIZUGUCHI  

Publication
IEICE TRANSACTIONS (1976-1990)   Vol.E66   No.2   pp.108-115
Publication Date: 1983/02/25
Online ISSN: 
DOI: 
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Antenna and Propagation
Keyword: 


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Summary: 
A newly devised beam-steerable antenna which is capable of steering its radiation beam without moving a main reflector is presented. This is the offset type spherical reflector antenna with two specific subreflectors. With the application of mathematical programming, a new technique to determine the shapes of the subreflectors is proposed in order to compoensate for the spherical aberration and the asymmetrical distortion of the aperture distribution, which deteriorates the electric characteristics. An experimental antenna has demonstrated its excellent performance and supported the adequacy and availability of the designing procedure. The results suggest the feasibility of the beam-steerable antenna for satellite communication use.