Double-frequency Doherty power amplifier based on left and right hand composite line structure

• Main Authors: LAI ZEJIE, CHENG ZHIQUN, LIN YIJUN, LIU GUOHUA, ZHONG HUABANG
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2022
• Subjects: AMPLIFIERS; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY

The utility model discloses a double-frequency Doherty power amplifier based on a left and right hand composite line structure, which comprises a double-frequency power divider, a carrier power amplification module, a peak power amplification module and a combined impedance matching network, and the double-frequency power divider and a double-frequency impedance inverter are constructed by utilizing the left and right hand composite line theory. Wherein the double-frequency power divider realizes power distribution of any two frequency bands, and meanwhile, the bandwidths of the two working frequency bands can be expanded while only one-stage Wilkinson power divider structure is used; according to the impedance inverter based on the left and right hand transmission line theory, two working frequency bands can be selected at will on the basis that the overall structure is not changed, and meanwhile the bandwidths of the two working frequency bands can be expanded to a certain extent. 本实用新型公开了基于左右手复合线结构的双频Doher