| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device which enables a radiation conductor to be securely held on a base body. SOLUTION: The antenna device includes: the base body (2) mounted on a circuit board (90); and a metallic radiation conductor (31) which is provided to the base body and radiates radio waves, the radiation conductor being formed in a spiral shape and partially buried in the base body. The radiation conductor has a nearly octagonal cross section substantially orthogonal to the center axis of the spiral and four side portions (32a, 34a) whose normals are substantially orthogonal to each other are buried in the base body. COPYRIGHT: (C)2009,JPO&INPIT
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