公开(公告)号：US20250141479A1

公开(公告)日：2025-05-01

申请号：US18923005

申请日：2024-10-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungjae OH ,  Hyunuk KANG ,  Daeyoung LEE

IPC: H04B1/04 ,  H04B1/00

Abstract: The disclosure relates to a fifth generation (5G) communication system or a sixth generation (6G) communication system. An electronic device in a wireless communication system can reduce or minimize the size of a power amplifier module (PAM) and can secure a relatively wide operating frequency band of the PAM.

公开(公告)号：US20230378912A1

公开(公告)日：2023-11-23

申请号：US18302335

申请日：2023-04-18

Applicant: Samsung Electronics Co., Ltd. ,  Research & Business Foundation SUNGKYUNKWAN UNIVERSITY

Inventor： Younggoo YANG ,  Seunghoon JEE ,  Hyunuk KANG ,  Kyoungtae KIM ,  Changwook KIM ,  Seungmin WOO ,  Youngyoon WOO

IPC: H03F1/02 ,  H03F3/24

CPC classification number: H03F1/0288 ,  H03F3/245 ,  H03F2200/451

Abstract: An electronic device including a Doherty power amplifier is provided. The electronic device includes a carrier amplifier, a first circuit coupled to an output terminal of the carrier amplifier, a peaking amplifier, a second circuit coupled to an output terminal of the peaking amplifier, and a network circuit. The network circuit includes the Doherty power amplifier and a transmission line for impedance matching with a resonance circuit. The resonance circuit may be disposed between a first area and a second area of the transmission line. The Doherty power amplifier provides an output impedance in a first range distributed based on a frequency within a bandwidth. The network circuit provides a load impedance in a second range distributed based on the frequency within the bandwidth. The first area of the transmission line provides a first phase shift impedance. The second area of the transmission line provides a second phase shift impedance.

公开(公告)号：US20240120886A1

公开(公告)日：2024-04-11

申请号：US18351907

申请日：2023-07-13

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

Inventor： Seunghoon JEE ,  Youngoo YANG ,  Hyunuk KANG ,  Kyoungtae KIM ,  Changwook KIM ,  Youngyoon WOO ,  Yi Fei CHEN

IPC: H03F1/02 ,  H03F1/56 ,  H03F3/24

CPC classification number: H03F1/0288 ,  H03F1/565 ,  H03F3/245 ,  H03F2200/198 ,  H03F2200/451

Abstract: A Doherty power amplifier of a wireless communication system is provided. The Doherty power amplifier includes a first stage including a first power amplifier and a second power amplifier. The Doherty power amplifier includes a second stage including a third power amplifier and a fourth power amplifier. The Doherty power amplifier includes a coupler between the first stage and the second stage. The Doherty power amplifier includes a load impedance connected to the second stage. A bias of the first power amplifier is applied differently from a bias of the second power amplifier. A bias of the third power amplifier is applied in the same manner as a bias of the fourth power amplifier.

公开(公告)号：US20230261615A1

公开(公告)日：2023-08-17

申请号：US18304050

申请日：2023-04-20

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

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

IPC: H03F1/02 ,  H03F3/24 ,  H03F3/60 ,  H03F1/56

CPC classification number: H03F1/0288 ,  H03F3/24 ,  H03F3/602 ,  H03F1/565 ,  H03F2200/451 ,  H03F2200/198 ,  H03F2200/423

Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 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, a 4-port coupler, and a load impedance, and the 4-port coupler includes a first port, a second port, a third port, and a fourth port, the first power amplifier is coupled with the 4-port coupler through the first port, the second power amplifier is coupled with the 4-port coupler through the fourth port, the load impedance is coupled with the 4-port coupler through the third port, the first transmission line is disposed between the first power amplifier and the first port of the 4-port coupler, and the second port is an output end of the power amplifier.

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.