发明授权
- 专利标题： Antenna assembly and portable radio apparatus
- 专利标题（中）： 天线组件和便携式无线电设备
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申请号： US592314申请日： 1996-05-23
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公开(公告)号： US5861859A公开(公告)日： 1999-01-19
- 发明人: Yoshiki Kanayama , Shinichiro Tsuda , Shinichi Kuroda , Ichiro Toriyama , Hiroki Ito
- 申请人： Yoshiki Kanayama , Shinichiro Tsuda , Shinichi Kuroda , Ichiro Toriyama , Hiroki Ito
- 申请人地址： JPX Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX6-170190 19940628
- 主分类号： H01Q1/24
- IPC分类号： H01Q1/24 ; H01Q1/36 ; H01Q3/24 ; H01Q9/32 ; H01Q11/08 ; H01Q21/28
摘要：
An antenna assembly has a first helical antenna and a second rod antenna extending through inside said first antenna in the axis direction. When the antenna is retracted, the upper end of a conductive portion of the second antenna passes through the first antenna to be positioned below the lower end of the first antenna, and when the antenna is extended, the lower end portion of the conductive portion of the second antenna is electrically connected to the upper end portion of the first antenna. Therefore, the length of the second antenna can be reduced as compared with a length defined based on wavelengths of transmitted signals. Consequently, an antenna assembly which requires a smaller housing space can be obtained.
公开/授权文献
- US5087722A Process for producing norcamphane dicarbonitriles 公开/授权日：1992-02-11
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