Patent ID: 9077439
Filing Date: 2015-07-07
Classification: H03H,H04B

Abstract:
1. A high-frequency module comprising: a switch device arranged to selectively connect a common terminal to a plurality of individual terminals; a duplexer arranged to separate a transmission signal and a reception signal in a single communication band; a multilayer body including the switch device and the duplexer mounted on a top surface of the multilayer body, external connection port electrodes provided on a bottom surface of the multilayer body, and predetermined electrode patterns defining the high-frequency module provided on internal layers of the multilayer body; and a surface-mount circuit device mounted on the top surface of the multilayer body; wherein the surface-mount circuit device is connected at a location different from a transmission path for the transmission signal and is mounted on the multilayer body between the switch device and the duplexer; the switch device includes a plurality of power supply system terminals to which a driving voltage and a control voltage are applied; the external connection port electrodes include a plurality of power supply system input port electrodes to which the driving voltage and the control voltage are applied; the circuit device which is mounted between the switch device and the duplexer includes at least one resistance element and/or at least one coil component connected between the plurality of the power supply system terminals and the plurality of the power supply system input port electrodes; and the at least one resistance element and/or the at least one coil component is mounted on the multilayer body such that an end of the at least one resistance element and/or the at least one coil component connected to at least one of the plurality of power supply system input port electrodes is disposed closer to the duplexer than to the switch device.