Feedback type power oscillator based on composite right/left hand unit

The invention discloses a feedback power oscillator based on a composite right/left hand unit. The feedback power oscillator comprises an output matching circuit, an input matching circuit, a transistor, a feedback circuit, an input blocking capacitor and an output blocking capacitor which are arranged on the upper surface of a dielectric substrate, and a metal ground on the lower surface of the dielectric substrate. The amplitude and the phase of a feedback branch are reasonably designed according to the Barkhausen criterion, so that the whole loop meets the oscillation starting condition, and the power oscillator is realized. A harmonic control unit is added in an output matching circuit, and harmonic impedance is tuned while fundamental frequency impedance is matched, so that impedance of an output end of a transistor meets fundamental wave and harmonic wave impedance conditions required by an inverse F-type working state, and the power efficiency of the oscillator is improved. The addition of the composit