Patent ID: 9722548
Date: 2017-08-01
CPC Classifications: H03F

Claim:
1. An amplification circuit comprising: a first switching circuit that includes one or more input terminals, a first output terminal and a second output terminal, and that puts the second output terminal into an open state of being open with respect to each of the one or more input terminals while selectively putting the first output terminal into a connected state of being connected to any one of the one or more input terminals or selectively puts the second output terminal into a connected state of being connected to any one of the one or more input terminals while putting the first output terminal into an open state of being open with respect to each of the one or more input terminals; a matching network that is connected to the first output terminal; an amplifier that is connected to an output side of the matching network; a second switching circuit that is connected to an output side of the amplifier and enters a non-conductive state when the first switching circuit puts the first output terminal into the open state and selectively puts the second output terminal into the connected state of being connected to any one of the one or more input terminals; and a bypass path that electrically connects the second output terminal and an output terminal of the second switching circuit.