| 发明名称 | Communication terminal apparatus and antenna device | ||
| 摘要 | An antenna device which includes a coil conductor and a booster conductor. The coil conductor is defined by wound loop-shaped conductors and includes a first opening at a winding center and two ends connected to a feeding circuit. The booster conductor includes a coupling conductor portion and a frame-shaped radiation conductor portion. The coupling conductor portion includes a second opening overlapped at least partially by the first opening, is split in a portion thereof by a slit, and is electromagnetically coupled to the coil conductor. The frame-shaped radiation conductor portion includes a third opening and is connected to the coupling conductor portion. | ||
| 申请公布号 | US9531073(B2) | 申请公布日期 | 2016.12.27 |
| 申请号 | US201514937972 | 申请日期 | 2015.11.11 |
| 申请人 | Murata Manufacturing Co., Ltd. | 发明人 | Nakano Shinichi;Kato Noboru |
| 分类号 | H01Q7/08;H01Q7/00;G06K7/10;H01Q1/22;H01Q19/00;H01F38/14;H01Q7/06 | 主分类号 | H01Q7/08 |
| 代理机构 | Keating & Bennett, LLP | 代理人 | Keating & Bennett, LLP |
| 主权项 | 1. An antenna device comprising: a coil conductor defined by a wound loop-shaped conductor and including a first opening at a winding center and two ends which are connected to a feeding circuit; and a booster conductor including: a coupling conductor portion that includes a second opening overlapped at least partially by the first opening, is split in a portion thereof by a slit, and is coupled to the coil conductor; anda radiation conductor portion that includes a third opening and is connected to the coupling conductor portion; wherein the third opening is arranged at only one side of the second opening when the antenna device is viewed in plan view. | ||
| 地址 | Kyoto JP | ||