| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio tag capable of preventing the deterioration in communication distance even when the radio tag using a dipole antenna is made to adhere onto objects with material quality variously different in permittivity, such as glass, plastic, or ceramics. <P>SOLUTION: The radio tag 6A includes: the dipole antenna part 3A having a center part and two wing parts, respectively extending from both the ends of the center part; and a conductive pattern part 2 for connecting the two wing parts. The wing parts are constituted, thereby increasing an antenna width toward the end parts from a part close to the connection part to the conductive pattern part 2. <P>COPYRIGHT: (C)2008,JPO&INPIT |
