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51. 发明授权

US06940458B2 Electronic equipment and antenna mounting printed-circuit board 失效
标题翻译：电子设备和天线安装印刷电路板
公开(公告)号：US06940458B2
公开(公告)日：2005-09-06
申请号：US10721671
申请日：2003-11-25
申请人： Kouichi Mukai , Shuichiro Yasuda , Kenji Asakura , Hidenobu Muranaka
发明人： Kouichi Mukai , Shuichiro Yasuda , Kenji Asakura , Hidenobu Muranaka
IPC分类号： H01Q1/24 , H01Q1/36 , H01Q1/38 , H01Q1/40 , H01Q21/24 , H01Q1/48
CPC分类号： H01Q1/36 , H01Q1/243 , H01Q1/40 , H01Q21/24
摘要： A PDA includes a printed-circuit board on which at least one printed antenna pair having two chip-like printed antennas, which receive linearly polarized signals and are disposed along axes orthogonal to each other, is mounted. In each of the printed antennas, an open end is formed of at least two antenna conductors separated from each other. Besides, in the printed-circuit board, a ground required by one or plural other modules is disposed so as to surround a surrounding area of at least three sides of four sides forming a rectangular section in each of the printed antennas, and each of the printed antennas is disposed and mounted so that a remaining one side faces an edge portion of the printed-circuit board. While the PDA can receive circularly polarized signals very effectively, the degree of freedom in layout is greatly expanded and miniaturization can be realized.
摘要翻译： PDA包括印刷电路板，其上安装有至少一个具有两个片状印刷天线的印刷天线对，其接收线偏振信号并且沿着彼此正交的轴设置。在每个印刷天线中，开口端由彼此分离的至少两个天线导体形成。此外，在印刷电路板中，设置一个或多个其他模块所需的地面，以便围绕在每个印刷天线中形成矩形截面的四边形的至少三边的至少三边的周围区域，并且布置和安装印刷天线，使得剩余的一侧面对印刷电路板的边缘部分。虽然PDA可以非常有效地接收圆偏振信号，但是布局自由度大大地扩大并且可以实现小型化。

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