Power amplification module and front end circuit
AssigneeMurata Manufacturing Co., Ltd.
InventorsShinya Hitomi, Hidenori Obiya, Tsuyoshi Sato, Shingo Yanagihara
Life of this patent
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Abstract
A PA module (10) includes multiple amplifying elements (11a, 11b) and a variable filter circuit (12). The amplifying elements (11a, 11b) amplify a transmission signal in a frequency range including multiple communication bands and are cascade-connected to each other. The variable filter circuit (12) is connected between the amplifying elements (11a, 11b). The variable filter circuit (12) uses a transmission band corresponding to a used communication band selected from the multiple communication bands as a pass band and a reception band corresponding to the used communication band as an attenuation band.
Claims20
A power amplification module comprising:
- a plurality of amplifying elements amplifying a transmission signal in a frequency range including a plurality of communication bands and cascade-connected to each other;
- and
- a variable filter circuit connected between the amplifying elements,
- wherein the variable filter circuit uses a transmission band corresponding to a used communication band selected from the plurality of communication bands as a pass band and a reception band corresponding to the used communication band as an attenuation band.
Dependencies are inferred from the claim text.