Abstract: A semiconductor switch includes a first switching element connected between a first terminal and a second terminal, a second switching element connected between the second terminal and a third terminal, a first resonant circuit having a zero impedance when resonating at a first frequency, a second resonant circuit having a zero impedance when resonating at N times the first frequency, wherein N is an integer greater than 1, and a transmission line having a first point connected to the second terminal, a second point connected to the first resonant circuit, and a third point connected to the second resonant circuit. A length of the transmission line between the first and second points corresponds to one-quarter of a wavelength corresponding to the first frequency, and a length of the transmission line between the first and third points corresponds to one-half of the wavelength corresponding to the first frequency divided by N.

Abstract: A semiconductor switch includes a first switching element connected between a first terminal and a second terminal, a second switching element connected between the second terminal and a third terminal, a first resonant circuit having a zero impedance when resonating at a first frequency, a second resonant circuit having a zero impedance when resonating at N times the first frequency, wherein N is an integer greater than 1, and a transmission line having a first point connected to the second terminal, a second point connected to the first resonant circuit, and a third point connected to the second resonant circuit. A length of the transmission line between the first and second points corresponds to one-quarter of a wavelength corresponding to the first frequency, and a length of the transmission line between the first and third points corresponds to one-half of the wavelength corresponding to the first frequency divided by N.

Abstract: According to one embodiment, one end of a first line is connected to a first terminal. A first resonance circuit has one end connected to the other end of the first line. A first transistor has one end connected to the other end of a second line, the other end connected to a second terminal, and a control terminal to receive a first control signal. A second transistor has one end connected to the second terminal, and a control terminal to receive a second control signal. A third line is connected to the other end of the second transistor. A second resonance circuit has one end connected to the other end of the third line. A fourth line has one end connected to the other end of the third line, and the other end connected to a third terminal.