| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless communication system for a rotating body that allows performing stable wireless communication at all the rotational positions of the rotating body.SOLUTION: A wireless communication system 100 for a rotating body of the present invention includes a plurality of rotation-side loop antennas 23 arranged in juxtaposition in the circumference direction of one end surface 60M of an outer rotor 60; all the rotation-side loop antennas 23 are connected in series between a pair of input/output terminals of a modulation and demodulation circuit 28. The magnetic flux of a wireless wave outputted from a fixed-side loop antenna 11 of an RFID reader 10 penetrates through any of the plurality of rotation-side loop antennas 23 regardless of the rotational position of the outer rotor 60, thereby performing stable wireless communication at all the rotational positions of the outer rotor 60. |
