WIRELESS IC TAG AND MANAGEMENT SYSTEM USING THE WIRELESS IC TAG

摘要

Provided is a wireless IC tag which is capable of miniaturizing an antenna, has a wide communication range and communication functions corresponding to the characteristics of a wide range of bands from an LF band to a UHF band, and is provided with a large-capacity memory. The wireless IC tag capable of writing/reading data to/from a writing/reading device by radio communication is characterized in that the wireless IC tag connects a ferroelectric memory, which uses ferroelectric and is provided with a power supply section for receiving the radio waves from outside and resonating therewith to generate a current and an antenna section for radio-communicating in a predetermined frequency band, and a UHF band communication antenna chip for receiving the radio waves of the UHF band, and mounts the ferroelectric memory and the UHF band communication antenna chip connected on a substrate.  The wireless IC tag is further characterized by performing the communication in a long frequency band which is beyond the UHF band in the antenna section of the ferroelectric memory to thereby store data in the ferroelectric memory, and performing the communication in the UHF band in the UHF band communication antenna chip to thereby store the data in the ferroelectric memory.