公开(公告)号：US20230198480A1

公开(公告)日：2023-06-22

申请号：US18168223

申请日：2023-02-13

Applicant: Samsung Electronics Co., Ltd. ,  RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

Inventor： Seunghoon JEE ,  Youngoo YANG ,  Yifei CHEN ,  Hyunuk KANG ,  Kyoungtae KIM ,  Changwook KIM ,  Youngyoon WOO ,  Woojin CHOI

IPC: H03F3/21 ,  H03F1/02 ,  H03F1/56

CPC classification number: H03F3/211 ,  H03F1/0288 ,  H03F1/565 ,  H03F2200/387 ,  H03F2200/451

Abstract: The disclosure relates to a 5th generation (5G) or a pre-5G communication system for supporting a higher data transmission rate after a 4th generation (4G) communication system such as long-term evolution (LTE). A Doherty power amplifier of a wireless communication system is provided. The Doherty power amplifier includes a first power amplifier, a second power amplifier, a first transmission line connected to an output end of the first power amplifier, a second transmission line connected to an input end of the second power amplifier, a first network, and a second network, the first network may interconnect a first node connected with one end of the first transmission line and a second node connected with an output end of the second power amplifier, the one end of the first transmission line may be positioned on an opposite side with respect to the output end of the first power amplifier, and the second network may connect the first node, the second node, and a third node which is an output end of the Doherty power amplifier.