发明名称 |
DISTRIBUTED ANTENNA SYSTEM ROBUST TO HUMAN BODY LOADING EFFECTS |
摘要 |
<p>A wireless handheld device comprises an internal antenna system that operates in first and second non-overlapping frequency bands with respective bandwidths. The antenna system includes: a ground plane; first and second antenna elements connected to a common input/output port, wherein a bandwidth of each of the antenna elements is less than at least one of the first and second operating frequency bandwidths and less than a frequency bandwidth for the antenna system; a combining structure to couple first and second signal transmission paths from the antenna elements to the common input/output port; and a phase shifting element on the first signal transmission path that imparts a phase delay to signals on the first signal transmission path. The phase delay minimizes a sum of reflection coefficients of the antenna elements to cause the frequency bandwidth for the antenna system to include at least the first and second operating frequency bands.</p> |
申请公布号 |
EP2025043(A2) |
申请公布日期 |
2009.02.18 |
申请号 |
EP20070729732 |
申请日期 |
2007.05.31 |
申请人 |
FRACTUS, S.A. |
发明人 |
ANGUERA PROS, JAUME;PUENTE BALIARDA, CARLES |
分类号 |
H01Q3/36;H01Q1/24;H01Q21/29 |
主分类号 |
H01Q3/36 |
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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