High-frequency module

A high-frequency module comprising:

• a longitudinally coupled surface acoustic wave filter including a plurality of resonators;
• and
• a low-noise amplifier that is connected to the surface acoustic wave filter and that amplifies a high-frequency signal that has passed through the surface acoustic wave filter;
• wherein
• an input impedance of the surface acoustic wave filter connected to the low-noise amplifier differs from an output impedance thereof;
• and
• on a Smith chart, the output impedance in a pass band of the surface acoustic wave filter is present in a region between a first output impedance and a second output impedance, the first output impedance being the output impedance of the surface acoustic wave filter where a gain of the low-noise amplifier is maximum, the second output impedance being the output impedance of the surface acoustic wave filter where a noise figure of the low-noise amplifier is minimum.