Multi-band power amplifier

A wireless device comprising:

• a plurality of load lines, at least some of the load lines corresponding to a different communication frequency band;
• a switch network configured to electrically connect a load line from the plurality of load lines to a power amplifier;
• and
• a power amplifier module including the power amplifier, a first programmable harmonic termination circuit in electrical communication with an output stage of the power amplifier, and a controller, the power amplifier configured to receive a signal, the first programmable harmonic termination circuit including a first plurality of capacitors and a first plurality of switches, at least one of the first plurality of capacitors in electrical communication with at least one of the first plurality of switches, and the controller configured to modify a configuration of the first plurality of switches of the first programmable harmonic termination circuit based at least in part on a second harmonic frequency of the signal.

A power amplifier module comprising:

• a multistage power amplifier including at least a first stage and a second stage, the multistage power amplifier configured to receive a signal;
• an inter-stage programmable harmonic termination circuit located between the first stage and the second stage, the inter-stage programmable harmonic termination circuit including a plurality of capacitors and a plurality of switches, at least one of the plurality of capacitors in electrical communication with at least one of the plurality of switches;
• and
• a controller configured to modify a configuration of the plurality of switches of the inter-stage programmable harmonic termination circuit based at least in part on a harmonic frequency of the signal.