The duplexer and has a band-pass filter other than the duplexer, according to the filter characteristics of the duplexer, there is provided a multiplexer with the amount of attenuation in the pass band of the other band-pass filter is larger.
The multiplexer is arranged on the printed circuit board 14. The multiplexer has a first, a second bandpass filter with at least one band pass filter other than a duplexer (2A) and the duplexer (2A), which is composed of a (3A, 3B). First and is 2 has a bandpass filter (3A, 3B) comprises a first, a second laminate (11A, 11B) each configured as a separate part. Configuration of so that the pass band of the bandpass filter except the frequency station duplexer (2A) of high-order mode spurious different from that generated in the duplexer (2A), the first configuration of the laminate (11A) and the second stacked body (11B) this is different.