Electronic devices with capacitive proximity sensors for proximity-based radio-frequency power control
摘要
<p>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 may have conductive layers separated by a dielectric. A capacitance-to-digital converter may be coupled to the proximity sensor by inductors. The capacitive proximity sensor may be interposed between an antenna resonating element and the antenna window.</p>
申请公布号
AU2014202603(B2)
申请公布日期
2015.07.09
申请号
AU20140202603
申请日期
2014.05.13
申请人
APPLE INC.
发明人
AMM, DAVID T.;SCHLUB, ROBERT W.;LEUNG, OMAR S.;KING, BRIAN M.;LI, QINGXIANG;AYALA VAZQUEZ, ENRIQUE;GOMEZ ANGULO, RODNEY ANDRES;JIANG, YI;CABELLERO, RUBEN