Matching network and power amplifier including the same

A power amplifier, comprising:

• a first amplifier configured to amplify an input radio frequency (RF) signal;
• and
• a first matching network connected to an output terminal of the first amplifier,
• wherein the first matching network comprises:
• a first input terminal,
• a first output terminal,
• a first diode comprising an anode connected to a first node disposed between the first input terminal and the first output terminal and to which a first reverse bias voltage is applied, and
• a first stub connected to a cathode of the first diode and configured to form a ground node at the cathode of the first diode.

A power amplifier, comprising:

• a matching network,
• wherein the matching network comprises:
• a first diode connected to a first node between an input terminal of the matching network and an output terminal of the matching network,
• a second diode connected to a second node between the input terminal of the matching network and the output terminal of the matching network,
• a first radial open stub connected to a cathode of the first diode, and
• a second radial open stub connected to a cathode of the second diode,
• wherein the first radial open stub and the second radial open stub are configured to form a ground node at the cathode of the first diode and the cathode of the second diode for an alternating current (AC) signal, and form a floating node at the cathode of the first diode and the cathode of the second diode for a direct current (DC) signal.