| An RFID tag sends information from a reading device to an IC chip using
electromagnetic induction.The resonance phenomenon of the coil antenna
and capacitor inside an RFID tag is used to accurately transmit information
on specific frequencies.The inductance of the RFID tag needs to be accurately
obtained to produce the correct resonance on the specified frequency by
identifying the capacity of the external capacitor. This example presents
the use of a magnetic field analysis to obtain the magnetic field distribution
and inductance of an RFID tag with a specific frequency of 13.56 MHz.The
example analyzes the iron loss of a reactor. |