| 摘要 |
PROBLEM TO BE SOLVED: To improve antenna characteristic by protecting an antenna from the main cause of antenna characteristic deterioration by a transmission and reception circuit. SOLUTION: An antenna substrate 3 is placed on supporting parts 41a, 41b, 41c and 41d provided at a case part 4 and supported by a main surface 3b to be positioned. That is, the substrate 3 is supported so that the surface 3b of the substrate 3 and the edge part of the part 4 may be on the same surface.
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