发明名称 |
MOBILE WIRELESS COMMUNICATIONS DEVICE HAVING FREQUENCY SELECTIVE GROUNDING AND RELATED METHOD |
摘要 |
A mobile wireless communications device includes a portable housing having a metallic front housing forming a peripheral sidewall as a metallic ring. A circuit board is carried by the portable housing and forms a chassis ground plane. A wireless communications circuit is carried by a circuit board. An antenna circuit is carried by a circuit board and connected to the wireless communications circuit. A frequency selective grounding circuit is positioned at a selected grounding location at the chassis ground plane and metallic front housing and forms a harmonic trap that responds to a specific range of frequencies.
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申请公布号 |
US2013196722(A1) |
申请公布日期 |
2013.08.01 |
申请号 |
US201313799322 |
申请日期 |
2013.03.13 |
申请人 |
RESEARCH IN MOTION LIMITED;RESEARCH IN MOTION LIMITED |
发明人 |
WONG JOSHUA KWAN HO;COOKE ADRIAN MATTHEW |
分类号 |
H04M1/02 |
主分类号 |
H04M1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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