Patent ID: 8861498

Claim:
A high-frequency module that sends and receives a plurality of types of communication signals in different frequency bands by using one antenna, the high-frequency module comprising: a diplexer arranged to separate a communication signal in a first frequency band, a communication signal in a second frequency band, and a communication signal in a third frequency band received from the one antenna; a switch element arranged to switch between sending/receiving of the first frequency band signal and sending/receiving of the second frequency band signal; and a first filter element provided between an input/output port for the first frequency band signal and the switch element and allowing passage of the first frequency band therethrough, and a second filter element provided between an input/output port for the second frequency band signal and the switch element and allowing passage of the second frequency band therethrough; wherein when a first reflection phase of the first filter element in the third frequency band as viewed from the switch element and a second reflection phase of the second filter element in the third frequency band as viewed from the switch element are both capacitive on a Smith chart and the second reflection phase is closer to a short-circuited side on the Smith chart than the first reflection phase, a line length of a first transmission line configured to adjust the first reflection phase and connecting the switch element and the first filter element is longer than a line length of a second transmission line configured to adjust the second reflection phase connecting the switch element and the second filter element; and the first transmission line and the second transmission line are further configured such that the first reflection phase of the first filter element and the second reflection phase of the second element are shifted towards the short-circuited side on the Smith chart.