Shunt harmonic control circuit

The utility model discloses a shunt harmonic control circuit, which comprises a power divider module, a first harmonic control loop, a second harmonic control loop and a fundamental wave matching module, and is characterized in that the power divider module is connected with the output end of a power amplifier and is used for dividing a power signal into two paths to be output; wherein the first harmonic control loop is connected with one output end of the power divider module and is at least provided with a first harmonic suppression module, a first harmonic control module and a first impedance adjustment module, and the first harmonic suppression module is used for reserving third harmonic and filtering other harmonic; the first harmonic control module is used for controlling third harmonics; and the first impedance adjusting module is used for adjusting the impedance of the second harmonic control loop and outputting a power signal to the fundamental wave matching module. By adopting the technical scheme o