MAGNETIC ANTENNA

摘要

A magnetic antenna preferable to an RFID tag and a reader/writer for RFID tag and capable of functioning stably even when it is made to approach a metal and be mass produced. The magnetic antenna has a structure in which a conductive layer is provided through an insulating layer to a magnetic layer that forms a coil. Further, the magnetic antenna is constructed by radially arranging a plurality of coils formed by the magnetic layer having a square or rectangular shape. One ends of the coils are so connected in series or parallel that their polarities match each other. The insulating layer is provided on one side or both sides of the upper and lower surface of the coil. The conductive layer is further provided outside one of the insulating layers. The magnetic antenna is fabricated using the LTCC technique.