Amplifying apparatus

An amplifying apparatus, comprising:

• an amplitude-phase conversion unit to separate an input signal into a first signal with a predetermined amplitude and a second signal with the predetermined amplitude, wherein a phase difference between the first signal and the second signal depends on an amplitude of the input signal;
• a first amplifying unit to amplify the first signal;
• a first matching circuit including a main line connected with the first amplifying unit and a first harmonic processing circuit connected with the main line, wherein a length of the line of the first harmonic processing circuit short-circuits a harmonic from the first amplifying unit;
• a second amplifying unit to amplify the second signal;
• a second matching circuit including a main line connected with the second amplifying unit and a second harmonic processing circuit connected with the main line of the second matching circuit, wherein a length of the line of the second harmonic processing circuit short-circuits a harmonic from the second amplifying unit;
• and
• an output synthesis unit to synthesize an output from the first matching circuit and an output from the second matching circuit,
• wherein a distance from the output side of the first amplifying unit to a position at which the first harmonic processing circuit is connected with the main line of the first matching circuit differs from a distance from the output side of the second amplifying unit to a position at which the second harmonic processing circuit is connected with the main line of the second matching circuit.