RF RF RF TAG MAGNETIC ANTENNA SUBSTRATE WITH THE RF TAG MOUNTED THEREON AND COMMUNICATION SYSTEM

摘要

Field of the Invention [0002] The present invention relates to a magnetic body antenna for communicating information using a magnetic field component, and the magnetic body antenna is a magnetic body antenna or an RF tag that achieves both miniaturization and improved communication sensitivity. That is, an RF tag in which an IC is mounted on a magnetic body antenna for transmitting and receiving information using an electromagnetic induction method, wherein the magnetic body antenna has a structure in which a coil having a specific inductance L ₁ satisfying a specific relational expression is wound on a single magnetic core The plurality of coil windings are connected in parallel on the electric circuit and are arranged in series in the magnetic core so that the composite inductance L ₀ of the magnetic body antenna satisfies a specific relational expression Is an RF tag characterized by the following.