High frequency power amplifier

A high frequency power amplifier comprising:

• an amplifier that amplifies signals received from a first input terminal and outputs amplified signals to an output terminal;
• a bypass route that connects a second input terminal to said output terminal without passing through said amplifier;
• an inductor having a first end connected to said amplifier, and a second end connected to said output terminal;
• a first switch having a first terminal connected to the second end of said inductor and to said output terminal, and a second terminal connected to said bypass route;
• a capacitor connected in parallel with said inductor;
• a second switch connected in parallel with said inductor, and connected in series with said capacitor;
• and
• a control unit that turns off said first switch and said second switch at a high power level and turns on said first switch and said second switch at a low power level.

A high frequency power amplifier comprising:

• an amplifier that amplifies signals received from a first input terminal and outputs amplified signals to an output terminal;
• a bypass route that connects a second input terminal to said output terminal without passing through said amplifier;
• a capacitor having a first end connected to said amplifier, and a second end connected to said output terminal;
• a first switch having a first terminal connected to the second end of said capacitor and to said output terminal, and a second terminal connected to said bypass route;
• a plurality of inductors connected in parallel with said capacitor;
• a plurality of second switches connected in parallel with said capacitor, and connected in series with said plurality of inductors;
• and
• a control unit that turns off said first switch and said plurality of second switches at a high power level and turns on said first switch and said plurality of second switches at a low power level.

A high frequency power amplifier comprising:

• an amplifier that amplifies signals received from a first input terminal and outputs amplified signals to an output terminal;
• a bypass route that connects a second input terminal to said output terminal without passing through said amplifier;
• an inductor having a first end connected to said amplifier, and a second end connected to said output terminal;
• a first switch having a first terminal connected to the second end of said capacitor and to said output terminal, and a second terminal connected to said bypass route;
• a plurality of capacitors connected in parallel with said inductor;
• a plurality of second switches connected in parallel with said inductor, and connected in series with said plurality of capacitors;
• and
• a control unit that turns off said first switch and said plurality of second switches at a high power level and turns on said first switch and said plurality of second switches at a low power level.