Radio-frequency module
AssigneeMurata Manufacturing Co., Ltd.
InventorMorio TAKEUCHI
Life of this patent
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Abstract
A radio-frequency module utilizing carrier aggregation includes a switch circuit that includes one input terminal and three or more output terminals and that simultaneously connects the input terminal and each of two or more output terminals selected from the output terminals, signal paths that propagate signals of corresponding frequency bands, band pass filters in the signal paths, and variable matching circuits in the signal paths. The circuit states of the variable matching circuits are changed in accordance with a combination of two or more signal paths simultaneously connected to the input terminal.
Claims20
A radio-frequency module utilizing carrier aggregation in which communication is performed by simultaneously using at least two frequency bands selected from a plurality of frequency bands having different frequencies, the radio-frequency module comprising:
- a switch circuit that includes one input terminal and three or more output terminals and that simultaneously connects the input terminal and each of two or more output terminals selected from the three or more output terminals;
- a plurality of signal paths that propagate signals of corresponding frequency bands of the plurality of frequency bands and that are connected to the three or more output terminals in a one-to-one correspondence;
- a filter element provided in each of the plurality of signal paths;
- and
- a variable matching circuit provided in at least one of the plurality of signal paths, a circuit state of the variable matching circuit being changed in accordance with a combination of two or more signal paths simultaneously connected to the input terminal among the plurality of signal paths.
Dependencies are inferred from the claim text.