| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna of lightweight wherein the level of interfering polarized wave is low and distortion of a beam is little. SOLUTION: A movable antenna contains a movable main reflecting mirror, fixed feeding assemblies and an auxiliary reflecting mirror assembly. A side feeding structure is constituted wherein the feeding assemblies are arranged to both sides of the main reflecting mirror and the auxiliary reflecting mirror. The main reflecting mirror, the auxiliary reflecting mirror and the feeding assemblies cooperate and form an antenna beam which is introduced to a direction previously selected by the main reflecting mirror. A gimbals which is used for positioning the main reflecting mirror and scanning the antenna beam over a previously selected visual field, while the feeding assemblies and the auxiliary reflecting mirror are maintained in an almost static state is combined with the main reflection mirror.
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