| 摘要 |
PROBLEM TO BE SOLVED: To prevent an antenna element from being removed from an antenna substrate. SOLUTION: A tapered projection section 13b whose diameter has been expanded is provided at the tip of an engagement drawing section 13a being drawn from the lower end of an element-mounting screw section 13 that is provided at the lower end of an element base part 13 of the antenna element. When a screw section 13e of the element base section 12 is screwed to a hot fixture 20, the tapered projection section 13b passes through a push nut 22, and engages with the push nut 22, thus preventing the antenna element from being removed from the antenna cover 3a of the antenna substrate carelessly. The push nut 22 is stuck into an antenna-mounting section 10 freely by the hot fixture 20 and a fixing metal 21.
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