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31. 发明授权

US06452558B1 Antenna apparatus and a portable wireless communication apparatus 失效
标题翻译：天线装置和便携式无线通信装置
公开(公告)号：US06452558B1
公开(公告)日：2002-09-17
申请号：US09768254
申请日：2001-01-25
申请人： Yutaka Saitou , Tomoaki Nishikido , Hiroshi Haruki
发明人： Yutaka Saitou , Tomoaki Nishikido , Hiroshi Haruki
IPC分类号： H01Q2100
CPC分类号： H01Q9/42 , H01Q1/362 , H01Q9/0421 , H01Q9/30 , H01Q21/28
摘要： A microstrip antenna (MSA) above a ground plane, having a size corresponding to an operation frequency, at a junction point thereof, electrically connected to one end of a monopole antenna having a size corresponding to the operation frequency to operate as a complex antenna. A distance between the feed point of MSA and the junction point determines the input impedance for matching. A microstrip line or an (planer) inverted-F antenna may provide the MSA. The monopole element may be a monopole antenna or helical antenna. A portable wireless communication apparatus includes the antenna apparatus having a housing. The monopole antenna is connected to the MSA when the monopole antenna is extended from the housing. A switch may be provided between the monopole antenna and the MSA for diversity operation. The antenna apparatus may be formed on a Printed circuit board and folded.
摘要翻译：在接地平面上方的微带天线（MSA）具有与操作频率相对应的尺寸，在其连接点处电连接到具有对应于操作频率的大小的单极天线的一端以用作复合天线。 MSA的馈电点和接点之间的距离决定了匹配的输入阻抗。微带线或（平面）倒F天线可以提供MSA。单极元件可以是单极天线或螺旋天线。便携式无线通信装置包括具有壳体的天线装置。当单极天线从外壳延伸时，单极天线连接到MSA。可以在单极天线和MSA之间提供开关用于分集操作。天线装置可以形成在印刷电路板上并被折叠。

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