It is to provide a radio communication system capable of performing highly
reliable reading/writing communication even though the RFID tags face in
the random directions. The radio communication system comprises an RFID
tag used for identification, a reader/writer for performing transmission
and reception of information between the RFID tag by radio waves, and a
plurality of reflecting plates in a space where a plurality of RFID tags
are accumulated. The reflecting plates direct traveling direction of the
radio wave irradiated from the reader/writer towards the RFID tags. A
part of the radio waves irradiated from an antenna of the reader/writer
is directed to travel three-dimensionally towards the space by the effect
of the reflecting plates. Moreover, the radio waves traveling in the same
direction among the reflected radio waves by the plurality of reflecting
plates together allow attenuation caused due to distance to be reduced
extremely.