公开(公告)号：US20250070759A1

公开(公告)日：2025-02-27

申请号：US18810639

申请日：2024-08-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Bosung SUH ,  Byoungjoong KANG ,  Heeyong YOO ,  Beomyu PARK ,  Jeongyeol BAE ,  Sangmin YOO ,  Jongsoo LEE

IPC: H03H11/24 ,  H03F1/12 ,  H03G3/00 ,  H03H17/00 ,  H04B1/04

Abstract: An electronic device includes an amplifier circuit configured to amplify a radio frequency (RF) signal received from an antenna, the RF signal having a receiving power, an attenuator circuit connected between the amplifier circuit and a mixer, the attenuator circuit including at least one resistor and at least one transistor, and a processor configured to turn on a first transistor among the at least one transistor based on the receiving power being less than a threshold value, a signal output from the amplifier circuit being directly transferred to the mixer based on the first transistor being turned on, and control one or more transistors among the at least one transistor using a look-up table based on the receiving power being greater than or equal to the threshold value, the attenuator circuit having a resistance value corresponding to the receiving power based on the control of the one or more transistors.