| 摘要 |
PROBLEM TO BE SOLVED: To facilitate retention, attachment and decomposition work of a rotary antenna, to simplify its structure and to reduce its cost. SOLUTION: An antenna driving shaft 8 is composed of a metal tip part 12 formed of a metal and a dielectric part 8a formed of a dielectric material; a female thread is formed on the tip metal part 12; and the rotary antenna 5 is jointed to the antenna driving shaft 8 by a screw 13. COPYRIGHT: (C)2007,JPO&INPIT
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