0514886-A1 is referenced by 3 patents and cites 4 patents.

A fixed feed dual reflector scanning antenna system (10) having a low moment of inertia is disclosed. The inventive dual reflector antenna system (10) includes an antenna feed structure (16) for emitting electromagnetic radiation (R). The antenna system (10) further includes a subreflector (12) for redirecting the emitted radiation (R). The subreflector (12) is intersected by a subreflector longitudinal axis (Ls) at a rotation point proximate a vertex (20) of the subreflector (12). A main antenna reflector (14) circumscribing a main longitudinal axis (Lm) projects radiation redirected by the subreflector (12) as an antenna beam. A mechanical arrangement (22) rotates the subreflector (12) about the rotation point so as to vary the angular orientation between the subreflector longitudinal axis (Ls) and the main longitudinal axis (Lm).; In this manner the antenna beam is scanned relative to the main longitudinal axis (Lm).

Title
Dual reflector scanning antenna system.
Application Number
EP19920108574 19920521
Publication Number
0514886 (A1)
Application Date
May 21, 1992
Publication Date
November 25, 1992
Inventor
Seaton Arthur F
US
Assignee
Hughes Aircraft Co
US
IPC
H01Q 03/20
H01Q 19/10
H01Q 03/00
H01Q 19/19
H01Q 03/20
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