Patent ID: 8441304

Claim:
A high-frequency switch circuit comprising: a first switch that is connected between a common terminal and a first terminal; and a second switch that is connected between the common terminal and a second terminal, wherein each of the first and second switches includes a plurality of field-effect transistors connected in series and each having a body, a source, a drain, and a gate, a compensation capacitance that compensates a parasitic capacitance generated when the first switch is in an off-state is formed between the drain and the body or between the source and the body in at least one of the plurality of field-effect transistors of the first switch, and a compensation capacitance that compensates a parasitic capacitance generated when the second switch is in an off-state is formed between the drain and the body or between the source and the body in at least one of the plurality of field-effect transistors of the second switch.