Transcription of Doherty Power Amplifier Based on the Class-F Load Network
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Doherty Power Amplifier Based on the Class-F Load Network
Doherty Power Amplifier Based on the Class-F Load Network Minwoo Cho1, 1, Mincheol Seo1, Hyungchul Kim1, Inoh Jung1, Hwiseob Lee1, Cheonseok Park1 and Youngoo Yang1 Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, Gyeonggi-do, 440-476 Korea {hellocmw, starsorf, gudurial, junginoh11, Abstract. This paper presents a Doherty Amplifier with improved efficiency Based on the Class-F load Network for both carrier and peaking amplifiers. The peaking Amplifier is designed to have normal Class-F operation with the 2nd and 3rd harmonic-tuned load Network . For better linearity, the carrier Amplifier has a class-AB bias point and an identical Class-F load Network with the peaking Amplifier . The proposed Doherty Amplifier was designed and implemented for LTE applications at the 751 MHz band. For CW excitation, the implemented Amplifier has a gain of dB and a PAE of % at an output Power of dBm. For two-tone signal excitation, an IMD3 of -30 dBc was observed at an output Power of dBm.}
Doherty Power Amplifier Based on the Class-F Load Network★. Minwoo 1,Cho 1, Mincheol Seo. 1, Hyungchul Kim , Inoh Jung. 1, Hwiseob 1Lee , Cheonseok Park
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