ANTENNA DEVICE
To provide an antenna device with improved productivity and strength.SOLUTION: An antenna device includes a cylindrical conductor, and a flat conductor disposed at at least one end in the axial direction of the cylindrical conductor and extending in a cross direction intersecting the axial direction...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide an antenna device with improved productivity and strength.SOLUTION: An antenna device includes a cylindrical conductor, and a flat conductor disposed at at least one end in the axial direction of the cylindrical conductor and extending in a cross direction intersecting the axial direction. The cylindrical conductor includes a notch formed in a part along the outer periphery of the cylindrical conductor at one end in the axial direction and recessed toward the other end in the axial direction, thereby forming a gap between the notch and the flat conductor, and a feeder that feeds the gap.SELECTED DRAWING: Figure 1
【課題】生産性の向上及び強度の向上が図られたアンテナ装置を提供する。【解決手段】アンテナ装置は、筒状導体と、筒状導体の軸方向の少なくとも一端部に配置されて軸方向と交差する交差方向に延びる平板状導体と、を備える。さらに、筒状導体は、軸方向の一端部において筒状導体の外周に沿った一部に形成されて軸方向の他端部側に凹むことで、平板状導体との間に間隙を構成する切欠きと、間隙に対して給電する給電部と、を備える。【選択図】図１ |
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