OUTPHASING AMPLIFIER AND METHOD OF MANUFACTURING THE SAME

An outphasing amplifier includes a first amplifier, a second amplifier, and a combiner. The combiner includes a first node inputting a first signal, a second node inputting a second signal, a third node outputting a combined signal as an output signal, a first impedance converter connected to the first node and the third node, a second impedance converter connected to the second node and the third node, a first open stub wherein when an electrical length converted into a phase at a center frequency of an operating frequency band is θ3, and an outphasing angle when a power of the output signal has a minimum value is θbo, θ3 is different from 180°−θbo and +θbo, and a second open stub wherein when an electrical length converted into a phase at the center frequency is θ4, θ4 is different from 180°−θbo and +θbo.