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1. 发明公开

EP2216917A1 Mobile wireless communications device having diversity antenna system and related method 有权转让
标题翻译： Tragbares drahtlosesKommunikationsgerätmit Diversity-Antennensystem und entsprechendes Verfahren
公开(公告)号：EP2216917A1
公开(公告)日：2010-08-11
申请号：EP09152187.2
申请日：2009-02-05
申请人： RESEARCH IN MOTION LIMITED
发明人： Man, Ying Ton , Cooke, Adrian , Wong, Joshua , Qi, Yihong
IPC分类号： H04B7/06 , H04B7/08
CPC分类号： H04B7/0602 , H01Q1/243 , H01Q21/29 , H04B7/0689 , H04B7/0802 , H04B7/0825 , H04B7/0871 , H04B7/0877
摘要： A mobile wireless communications device (20) has a portable handheld housing (24). A circuit board (26) is carried by the portable handheld housing. RF circuitry is carried by the circuit board. A diversity antenna (34) and main antenna (22) are carried by the portable handheld housing and coupled to the RF circuitry and operative together. The RF circuitry tunes the diversity antenna into a diversity communications frequency band to achieve a diversity mode of operation with the main antenna and tunes the diversity antenna into a non-diversity communications frequency band when cross-coupling has occurred from the diversity antenna to the main antenna when operating in the diversity communications frequency band. A switch (42) is by the portable handheld housing and connected to the RF circuitry and coupled between the diversity and main antennae and disconnects the diversity antenna when operating in the non-diversity band to prevent cross-coupling from the diversity antenna to the main antenna.
摘要翻译：移动无线通信设备（20）具有便携式手持外壳（24）。电路板（26）由便携式手持外壳承载。 RF电路由电路板承载。分集天线（34）和主天线（22）由便携式手持外壳承载并耦合到RF电路并一起操作。 RF电路将分集天线调谐为分集通信频带，以实现与主天线的分集模式的操作，并且当从分集天线到主分支交叉耦合时，将分集天线调谐为非分集通信频带天线在分集通信频段工作时。开关（42）由便携式手持式外壳连接并连接到RF电路并耦合在分集和主天线之间，并且在非分集频带中操作时断开分集天线，以防止从分集天线到主机的交叉耦合天线。

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