Switch circuit, a filter circuit and a test apparatus

A switching circuit that switches whether to output the input signal, the input signal, and a transmission path to be transmitted from the input end to the output end of the switch circuit, provided in the transmission path, or to transmit the input signal whether a first semiconductor switch for switching whether to open when the first semiconductor switch is short-circuited, leaked transmission path between the first semiconductor switch and the output terminal are short-circuited when the first semiconductor switch is opened a second semiconductor switch to drop the high frequency signal to the ground potential, when the second semiconductor switch is opened, to provide a switching circuit and a voltage control unit for applying a potential difference across the second semiconductor switch.