| 摘要 |
A RFID tag for accommodation in a narrow clearance in an electronic device and providing a predetermined communication distance even if a displacement occurs between first and second antennas. First antenna is mounted through first spacer to metal case surface and second antenna mounted to resin container surface facing the first antenna. The dielectric resin container functions as a second spacer. Only the first spacer and first antenna are accommodated in the narrow clearance between metal case and resin container, the tag can be mounted even in an electronic device with a small redundant space and small size. First antenna is shorter than second antenna so that a required communication distance may be obtained even if their relative position is changed.
|
