Radio frequency module and communication device

A radio frequency module comprising:

• a switch circuit including a transmit terminal to which a radio frequency transmit signal is inputted, a receive terminal from which a radio frequency receive signal is outputted, a first selection terminal, and a first common terminal, the switch circuit being configured to switch between (1) a connection between the transmit terminal and the first common terminal, (2) connections between the transmit terminal and the first common terminal and between the first selection terminal and the first common terminal, (3) connections between the receive terminal and the first common terminal and between the first selection terminal and the first common terminal, and (4) a connection between the receive terminal and the first common terminal;
• a first filter configured to be used for a time division duplex system, a pass band of the first filter being a transmit/receive band of a first communication band, the first filter being connected to the first common terminal;
• and
• a variable impedance element connected to the first selection terminal, the variable impedance element changing an impedance thereof according to connection switching of the switch circuit.