| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a microwave tag system which makes a response at remarkably high speed and in which reception sensitivity is hardly degraded even if a tag is stuck to a metallic body. <P>SOLUTION: The system is provided with at least a microwave transmission/reception circuit, antennas, an information processor, and a memory. The antenna 21 of an interrogator 2 which is connected to an information input/output terminal machine 1 and transmits information from the information input/output terminal machine 1 and the antenna 31 of the tag 3 are arranged to face each other. When the tag 3 is stuck to the metallic body 4, it is stuck to the metallic body 4 so that a distance between an antenna face (strictly, a main plate 31c disposed at the rear side of the antenna element 31a via a dielectric 31b) of the tag 3 and the metallic body 4 is not less than 10mm across a spacer 5 formed of the dielectric. <P>COPYRIGHT: (C)2004,JPO</p> |
