| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a radio IC tag which is excellent in weather resistance, dustproof property, waterproof property and charging prevention for lengthening a communication distance even when reducing the scale of an antenna section. <P>SOLUTION: A first antenna 2 mounted with an IC chip 3 is formed on the upper face of a first spacer 1. A second antenna 5 is formed on the lower face of a top cover 6. A second spacer 4 is formed like a hollow shape. The first spacer 1 and the top cover 6 are arranged at the both sides of the second spacer 4 so that the first antenna 2 and the second antenna 5 can face each other. The first spacer 1, the second spacer 4 and the top cover 6 are made of synthetic resin. Consequently, the IC chip 3 and the antenna section can be prevented from being exposed to the outside, and weather resistance can be improved. Also, a feeble electric wave from the first antenna 2 can be amplified by the amplifying action of the second antenna 5 so as to be transmitted. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
