| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna for which directionality can be variably set by changing the shape of the antenna. SOLUTION: Tabular antenna elements 11a and 11b having a flexibility are disposed on the same plane at a predetermined interval. At the lower parts of adjacent ends of the antenna elements 11a and 11b, feed points 12 are provided, and feed lines 13 are connected to the feed points 12. One antenna element 11a is stored in antenna covers 15 and 16 while the other antenna element 11b is stored in antenna covers 17 and 18. The antenna covers 15-18 are pivotably connected by movable shafts 20a-20c, and are so structured as to bent at the movable shafts 20a-20c. By turning the antenna covers 15-18 wherein the antenna elements 11a and 11b are stored by the movable shafts 20a-20c, the shape of the antenna is variably set to obtain a desired directionality. COPYRIGHT: (C)2008,JPO&INPIT
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