Keating & Bennett, LLP
Antenna device, communication terminal device, and communication terminal device cover
An antenna device includes a feed coil including a coil conductor and being connected to a feed circuit, and an antenna coil including a coil conductor, a portion of the antenna coil being a coupler portion that electromagnetically couples with the feed coil. The winding axis of the coil conductor of the feed coil is not parallel to the direction along which the coil conductor of the antenna coil at the coupler portion extends. Further, at other than the coupler portion, a first magnetic body portion is arranged at a feed coil side of the antenna coil, and at the coupler portion, a second magnetic body portion is arranged at a side of the antenna coil opposite to the feed coil.
Murata Manufacturing Co., Ltd.
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Hiromitsu
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