To reduce costs by independently designing respective matching circuits and suppressing an increase in a circuit scale.
A filter 102 suppresses frequency bands f2-f3 of signals received by an antenna element 101. A filter 105 suppresses the frequency band f1 of signals received by the antenna element 101. A radio section 104 demodulates signals of which the frequency bands f2-f3 have been suppressed to obtain data superimposed on the signal of the frequency band f1. A radio section 107 demodulates the signal of which the frequency band f1 has been suppressed to obtain data superimposed on the signals of the frequency bands f2-f3. A matching circuit 103 is connected between the filter 102 and the radio section 104 and performs matching of impedance of the filter 102 and the radio section 104. A matching circuit 106 is connected between the filter 105 and the radio section 107 and performs matching of impedance of the filter 105 and the radio section 107.
KOYANAGI YOSHIO
KANEZAKI YOSHIHIRO
AOKI KOTA
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