发明名称 |
ANTENNA UNIT AND COMMUNICATION APPARATUS |
摘要 |
<P>PROBLEM TO BE SOLVED: To realize a communication apparatus having satisfactory communication characteristics by making an antenna unit to be shared in a plurality of frequencies small in size and broad in band. <P>SOLUTION: The antenna unit is provided with an inverted F-shaped antenna element with a feeding point and a ground connection point and a parasitic antenna element provided in order to resonate with the inverted F-shaped antenna element by electrostatic coupling. The antenna unit may further provided with a ground part grounded to a ground and connected with the ground connection point provided to one end of the Inverted F-shaped antenna element and a resonant element one end part of which is connected with the ground part and which is resonated by the parasitic antenna element by the electrostatic coupling. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
申请公布号 |
JP2004260647(A) |
申请公布日期 |
2004.09.16 |
申请号 |
JP20030050328 |
申请日期 |
2003.02.27 |
申请人 |
INTERNATL BUSINESS MACH CORP <IBM> |
发明人 |
FUJIO SHOHEI;ASANO TAKESHI |
分类号 |
G06F1/16;H01Q1/22;H01Q1/24;H01Q1/36;H01Q1/38;H01Q5/10;H01Q9/04;H01Q9/42;H01Q13/08 |
主分类号 |
G06F1/16 |
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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