发明名称 |
LOW PROFILE SMALL ANTENNA AND CONSTRUCTING METHOD THEREFOR |
摘要 |
<p>A built-in antenna applied to sending and reception of radio waves of a few giga cycles is improved and made smaller, and is made suitable for industrial production and has its tuning bandwidth widened. "An antenna pattern (6) which resonates at lambda /4" is formed on a substrate (5) and a zigzag portion (6a) is provided on a portion of the antenna pattern (6) which resonates at lambda /4. On the other hand, the substrate (5) and a bobbin (8) are supported by a metallic frame (7), and "a helical coil (9) which resonates at lambda /4" is wound and formed upon the bobbin (8). Capacitance (c) is provided between the antenna pattern (6) which resonates at lambda /4 and the helical coil (9) to electrically couple them. <IMAGE></p> |
申请公布号 |
EP1291970(A1) |
申请公布日期 |
2003.03.12 |
申请号 |
EP20020716319 |
申请日期 |
2002.01.18 |
申请人 |
SONY CORPORATION |
发明人 |
NAKASE, KAZUHIKO;KOJIMA, KOUTAROU;EBINE, NOBUHITO;HIRABAYASHI, KATSUKI;HIRAHAYA, KUNIAKI |
分类号 |
H01Q1/24;H01Q1/36;H01Q1/38;H01Q9/04;H01Q11/08;H01Q19/00;(IPC1-7):H01Q13/08 |
主分类号 |
H01Q1/24 |
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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