发明授权
- 专利标题： Cellular phone and method of operating the same
- 专利标题（中）： 蜂窝电话和操作方法相同
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申请号： US11184949申请日： 2005-07-20
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公开(公告)号： US07348926B2公开(公告)日： 2008-03-25
- 发明人: Hideki Ueda
- 申请人： Hideki Ueda
- 申请人地址： JP Tokyo
- 专利权人： NEC Corporation
- 当前专利权人： NEC Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2002-139141 20020514
- 主分类号： H01Q1/48
- IPC分类号： H01Q1/48 ; H01M1/00
摘要：
A cellular phone covering a plurality of frequency bands, includes (a) an antenna, (b) a high-frequency circuit, (c) an antenna-matching circuit electrically connecting in series between the antenna and the high-frequency circuit, and (d) a first unit which varies a ground length in accordance with a frequency band in which the cellular phone makes communication with others, the ground length being defined as a length of a ground area for the antenna-matching circuit.
公开/授权文献
- US20050255875A1 Cellular phone and method of operating the same 公开/授权日：2005-11-17
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