| 摘要 |
PROBLEM TO BE SOLVED: To provide a channel selecting device capable of reducing the influence of a local oscillation frequency to a circuit on a post stage to which split outputs are connected as for the channel selecting device which can split and output an input signal. SOLUTION: This channel selecting device comprises a splitter (43) for splitting the input signal, a local oscillator (52) for generating a local oscillation frequency signal corresponding to a receiving channel, a frequency converter (51) for applying frequency conversion to the input signal to obtain an intermediate frequency on the basis of the local oscillation frequency signal generated by the local oscillator (52), and a filter circuit (47) provided in a path between the local oscillator (52) and the split outputs for reducing leakage of a local oscillation frequency component generated by the local oscillator (52) to the split outputs. COPYRIGHT: (C)2004,JPO&NCIPI
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