Patent ID: 7391284

Claim:
A high-frequency switch comprising: a transmission terminal, an antenna terminal, a reception terminal, and a single voltage-control terminal; a first diode, the cathode thereof being electrically connected to said transmission terminal, and the anode being electrically connected to said antenna terminal; a first transmission line, electrically connected between said antenna terminal and said reception terminal; a second diode, the cathode thereof being electrically connected to said reception terminal, and the anode being electrically connected to said single voltage-control terminal; a second transmission line, one end thereof being electrically connected to said transmission terminal, and the other end being connected to ground without a DC-blocking capacitor; and a capacitor, electrically connected between said single voltage-control terminal and ground, and the capacitor being connected to said second diode in series; wherein a self-inductance of said second diode in an ON state and a capacitance of said capacitor resonate in series at a transmission frequency.