To provide a reception circuit whose size is small with a simple configuration by converting plural received frequency bands into a common intermediate frequency band.
A 1st local oscillation means 19 is made up of 1st and 2nd frequency synthesizers and a 3rd changeover means. The signal received from an antenna terminal 11 is distributed into each frequency band by a 1st changeover means 12 and fed to a 1st mixer 18 via an amplifier and a 2nd changeover means 17. First and second changeover means 12, 17 are controlled by a frequency switching signal 29. A local signal with a frequency to be converted into the same 1st intermediate frequency 20 corresponding to each reception frequency band is fed to the 1st mixer 18 via the 1st and 2nd frequency synthesizers and the 3rd changeover means. An output of the 1st mixer 18 is given to a 2nd mixer 23 receiving an output of a 2nd local oscillation means 22 as a local signal via a filter 21 and converted into a 2nd intermediate frequency 24. Thus, two frequency bands are processed by the same circuits after the 1st intermediate frequency processing stage so as to make the reception circuit small in this way.
SASAKI FUJIO