ANTENNA DEVICE AND ELECTRIC POLE ANTENNA DEVICE

To provide an antenna device and an electric pole antenna device which can be easily attached to a curved surface and have the excellent antenna characteristic.SOLUTION: An antenna device comprises: a support plate which has the flexibility and is attached in the state of being curved along the peripheral direction of a curved surface of a columnar attachment object; a plate-shaped antenna which has the flexibility and is attached with a gap to the support plate in the state of being curved along the support plate; and holding parts which hold the antenna with respect to the support plate at a plurality of positions in the peripheral direction of the curved support plate. The holding parts comprise: the first holding part which fixedly holds the antenna with respect to the support plate at the first position in the plurality of positions in the peripheral direction; and the second holding part which holds the antenna in a manner of being movable in the peripheral direction with respect to the support plate at the second position in the plurality of positions in the peripheral direction.SELECTED DRAWING: Figure 2 【課題】湾曲面に容易に取り付け可能で、アンテナ特性が良好なアンテナ装置、及び、電柱アンテナ装置を提供する。【解決手段】アンテナ装置は、可撓性を有し、柱状の取付対象物の湾曲面の周方向に沿って湾曲した状態で取り付けられる支持板と、可撓性を有する平板状のアンテナであって、前記支持板に沿って湾曲した状態で前記支持板に対して間隔を空けて取り付けられるアンテナと、前記湾曲した支持板の前記周方向における複数の位置において、前記支持板に対して前記アンテナを保持する保持部とを含み、前記保持部は、前記周方向における複数の位置のうちの第１位置において、前記アンテナを前記支持板に対して固定的に保持する第１保持部と、前記周方向における複数の位置のうちの第２位置において、前記アンテナを前記支持板に対して前記周方向に移動可能に保持する第２保持部とを有する。【選択図】図２