| CPC H03K 17/56 (2013.01) [H03K 5/1252 (2013.01)] | 17 Claims |
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1. A switching circuit comprising:
a substrate comprising a first input-and-output terminal and a second input-and-output terminal;
a first switch provided to the substrate and comprising a first source terminal, a first gate terminal, and a first drain terminal, the first source terminal being connected to an input of a power amplifier, and the first drain terminal being connected to the first input-and-output terminal;
a first voltage control circuit provided to the substrate and connected to the first gate terminal;
a second switch provided to the substrate and comprising a second source terminal, a second gate terminal, and a second drain terminal, the second source terminal being connected to the second input-and-output terminal, and the second drain terminal being connected to an output of the power amplifier; and
a second voltage control circuit provided to the substrate apart from the first voltage control circuit and connected to the second gate terminal,
wherein the power amplifier is connected between the first input-and-output terminal and the second input-and-output terminal, and
wherein the power amplifier is connected in series between the first source terminal and the second drain terminal.
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