发明授权
US08577289B2 Antenna with integrated proximity sensor for proximity-based radio-frequency power control
有权
具有集成接近传感器的天线,用于近距离射频功率控制
- 专利标题: Antenna with integrated proximity sensor for proximity-based radio-frequency power control
- 专利标题(中): 具有集成接近传感器的天线,用于近距离射频功率控制
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申请号: US13029581申请日: 2011-02-17
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公开(公告)号: US08577289B2公开(公告)日: 2013-11-05
- 发明人: Robert W. Schlub , Yi Jiang , Qingxiang Li , Jiang Zhu , Ruben Caballero
- 申请人: Robert W. Schlub , Yi Jiang , Qingxiang Li , Jiang Zhu , Ruben Caballero
- 申请人地址: US CA Cupertino
- 专利权人: Apple Inc.
- 当前专利权人: Apple Inc.
- 当前专利权人地址: US CA Cupertino
- 代理机构: Treyz Law Group
- 代理商 G. Victor Treyz; Michael H. Lyons
- 主分类号: H04B5/00
- IPC分类号: H04B5/00
摘要:
An electronic device may have a housing in which an antenna is mounted. An antenna window may be mounted in the housing to allow radio-frequency signals to be transmitted from the antenna and to allow the antenna to receive radio-frequency signals. Near-field radiation limits may be satisfied by reducing transmit power when an external object is detected in the vicinity of the dielectric antenna window and the antenna. A capacitive proximity sensor may be used in detecting external objects in the vicinity of the antenna. The proximity sensor and the antenna may be formed using integral antenna resonating element and proximity sensor capacitor electrode structures. These structures may be formed from identical first and second patterned conductive layers on opposing sides of a dielectric substrate. A transceiver and proximity sensor may be coupled to the structures through respective high-pass and low-pass circuits.