| 摘要 |
PURPOSE:To improve the efficiency of storage and to attain high rigidity and high accuracy of the entire antenna by forming an antenna reflection mirror surface by the set of hexagonal cone-shaped segments so as to facilitate the forming of a large aperture reflection mirror. CONSTITUTION:Six members 6 forming the radiation structure A and a hinge 7 collecting and coupling them at a point are provided. Further, six members 9 collected and coupled to a point by a hinge 8 to form radial structure B are coupled with the tip of the members 6 via a hinge 10 to limit the spread of the members 6 toward the outside. Moreover, the torsion of the hexagonal cone consisting of the members 6, 7, 8, 9, 10 is prevented by coupling the hinges 10 by a wire 10. Three members 13 collected and coupled to a point by a hinge 12 are coupled by the hinges 7 to form a structure C restricting the distance among the hinges 7. The structures above are repeated for many number of times to store efficiently the frame structure and the rigidity and accuracy as the mirror surface are kept by the frame structure. |
