In order to reduce the parts required for matching of an SAW filter module, the SAW filter module 10 obtains matching for coupling SAW filters 10A to 10D with RF-IC 20 using impedance matching circuits 11A to 11D. The real part of output impedance Z saw of the SAW filter is closely matched with the real part of input impedance Zic of an RF-IC. The impedance matching circuit modifies the imaginary part of the output impedance Zm of the SAW filter module according to the imaginary part of the input impedance Zic of the RF-IC 20. The impedance matching circuit composed of one piece of inductance or capacitor, or a plurality of inductors or capacitors in parallel connection, ans formed as a print pattern on a module substrate, in which the real part R saw and the real part Ric are in a relation nearly of 0.8 Ric