| 摘要 |
PROBLEM TO BE SOLVED: To provide a receiver which includes a semiconductor integrated circuit having a frequency converter and can improve receiving performance by reducing the influence of a disturbing signal without upsizing a filter provided at a preceding stage of the semiconductor integrated circuit. SOLUTION: The receiver includes the semiconductor integrated circuit device 201 and a UHF fixed bandpass filter 1 provided in the preceding stage of the semiconductor integrated circuit device 201. In the receiver, the semiconductor integrated circuit device 201 includes the frequency converter 3, a frequency to be converted signal transmission line for supplying a frequency to be converted signal to the frequency converter 3, a local oscillation signal transmission line for supplying a local oscillation signal to the frequency converter 3, and an undesired signal attenuation circuit 7 provided on the frequency to be converted signal transmission line to attenuate an undesired signal included in a signal that is transmitted in the frequency to be converted signal transmission line. COPYRIGHT: (C)2009,JPO&INPIT
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