公开(公告)号：US20250070729A1

公开(公告)日：2025-02-27

申请号：US18780949

申请日：2024-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wooseok LEE ,  Minchul KANG ,  Sangmin YOO ,  Jeongyeol BAE ,  Jongsoo LEE

IPC: H03F3/24 ,  H03F3/45 ,  H04B1/04

Abstract: Disclosed is a transmitter. The transmitter includes a plurality of power amplifiers, each of the plurality of power amplifiers being configured to receive an RF input signal, a parallel power combiner configured to combine outputs of the plurality of power amplifiers to generate an RF output signal, a supply voltage switch configured to provide one supply voltage to the plurality of power amplifiers, the one supply voltage being selected from among a plurality of supply voltages of different voltage levels, and a controller configured to control an output power of the RF output signal by selecting the one supply voltage from among the plurality of supply voltages, and controlling whether to activate each of the plurality of power amplifiers.

公开(公告)号：US20220376734A1

公开(公告)日：2022-11-24

申请号：US17708408

申请日：2022-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minchul KANG ,  Sanghyo LEE ,  Kyeongdo KIM ,  Inhyuk KIM

IPC: H04B1/40 ,  H04B1/10 ,  H03H7/38 ,  H03H7/06 ,  H02J50/80

Abstract: A communication device is provided. The communication device includes: an antenna; a matching circuit connected with the antenna; a transmitter configured to generate a transmission communication signal and provide the transmission communication signal to the antenna through the matching circuit; a filter connected between the matching circuit and the antenna; and a receiver configured to receive an attenuated signal from the antenna through the filter. The filter is configured to pass frequencies of an antenna signal corresponding to a pass band and attenuate frequencies of the antenna signal corresponding to a stop band, and a center frequency of the transmission communication signal corresponds to the stop band of the filter.