PURPOSE: To enhance efficiency in the assembling work of a transponder by employing a ferrite board as a base board and winding an antenna coil around the ferrite board.
CONSTITUTION: The transponder TR is implanted under the skin of a domestic animal. The transponder TR is encapsulated in a glass capsule G under a state where an antenna coil AC is wound around a stripe ferrite board 1 closely to one end thereof and a signal processing circuit SP is mounted on the board 1 closely to the other end thereof. The signal processing circuit SP comprises a capacitor C constituting a parallel resonance circuit together with the antenna coil AC, and a main processing part P where a part for recording the identification information of individual, a circuit for controlling transmission/receiving of signal, etc., are formed on a single chip. Since the board 1 has the function of a ferrite core for winding the antenna coil AC and the function of a circuit board for mounting the signal processing circuit SP, the assembling work is simplified and the number of components can be decreased.
UOTANI YASUHISA
NISHIJIMA HIRONOBU
TERAOKA MASAHARU
