Reconfigurable power amplifier capable of selecting wide band frequency and method for selecting wide band frequency

A reconfigurable power amplifier capable of selecting a wide band frequency, the reconfigurable power amplifier comprising:

• first and second input transistors configured to receive a radio frequency (RF) signal;
• and
• a reconfigurable adaptive power stage including a first reconfigurable adaptive power cell (RAPC) and a second RAPC,
• wherein the first RAPC comprises first and second transistors having respective first conduction terminals connected to the first input transistor and respective second conduction terminals connected to a first output,
• wherein the second RAPC comprises third and fourth transistors having respective first conduction terminals connected to the second input transistor and respective second conduction terminals connected to a second output,
• wherein respective gates of the first and third transistors are connected to a first common-gate bias voltage, and
• wherein respective gates of the second and fourth transistors are connected to a second common-gate bias voltage,
• wherein the reconfigurable adaptive power stage is configured to select the wide band frequency using one or more of the first and second common-gate bias voltages and to amplify the RF signal.