| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverted F type built-in antenna which allows easy adjustment to a required resonance frequency, makes damage due to dropping unlikely to occur, and achieves the weight saving. <P>SOLUTION: In an inverted F type built-in antenna 10, an antenna element 12 is formed by a plating layer formed into an inverted F type pattern on a surface of a base substance 11. Thus, the resonance frequency is adjusted by slightly changing the inverted F type pattern, and the adjustment to a required resonance frequency is easily conducted. Further, since the base substance 11 is formed by dielectric plastic which has higher toughness and smaller specific gravity compared to ceramics, the damage due to dropping is unlikely to occur and the weight saving is achieved. <P>COPYRIGHT: (C)2013,JPO&INPIT |
