OUTPHASING POWER AMPLIFIER BASED ON POWER-COMBINING TRANSFORMER INCLUDING STRUCTURE FOR IMPROVING EFFICIENCY

摘要

The present invention relates to a power-coupled transformer-based outphasing power amplifier including an efficiency improving structure. A power-coupled transformer-based outphasing power amplifier including an efficiency improving structure according to an aspect of the present invention is preset by receiving a predetermined input signal. A first signal having a magnitude and having a phase including a first phase component in a phase of the input signal, and a second phase having a magnitude of the first signal and having a phase opposite to the first phase component in the phase of the input signal. A signal separation unit for separating into a second signal including a component, a first balun unit for separating and outputting a first signal into a first differential signal and a second differential signal having a 180° phase difference from the first differential signal, the second signal A second balun portion for outputting the third differential signal and the third differential signal and the fourth differential signal having a 180° phase difference, and amplifying the first differential signal to the fourth differential signal according to a preset amplification ratio, respectively. An amplification unit including a plurality of amplifiers for outputting the amplification signals, a power conversion unit for combining and outputting amplification signals based on the phase difference between the first signal and the second signal, and a first installed between the amplification unit and the power conversion unit And a tuning inductor unit that resonantly couples with the parasitic capacitor of the amplifying unit based on the phase difference between the signal and the second signal.