| 摘要 |
PROBLEM TO BE SOLVED: To obtain a two-stage antenna having a cylindrical antenna element, that is less likely to be deformed by external forces, such as lateral loads, etc. SOLUTION: The cylindrical antenna element 8, which is connected to a feeding section is formed of a stranded wire of a superelastic material, with the cylindrical antenna element 8 being formed into a two-stage antenna.
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