公开(公告)号：US20250076481A1

公开(公告)日：2025-03-06

申请号：US18623102

申请日：2024-04-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： WONCHEOL LEE ,  DOOHYUN YANG ,  YOUNGKI LEE ,  DOOSEOK CHOI ,  JEONGKI RYOO ,  JOONHOI HUR

IPC: G01S13/08 ,  H01Q1/22 ,  H01Q1/48 ,  H01Q21/08

Abstract: Disclosed is an antenna module which includes a printed circuit board, a first antenna group including first and second sensing antennas disposed on a first surface of the printed circuit board and transmitting and receiving a first signal, a second antenna including antenna elements disposed on the first surface between the first and second sensing antennas, and a processor coupled to the printed circuit board, the first antenna group, and the second antenna group. The processor obtains information about a distance between an external object and the antenna module, based on the first signal transmitted and received through the first antenna group and transmits a second signal through the second antenna group with a first transmit power less than or equal to a first maximum power set to correspond to the first distance when the external object is within a first distance from the antenna module.

公开(公告)号：US20240072833A1

公开(公告)日：2024-02-29

申请号：US18223310

申请日：2023-07-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： KYUNGWOO YOO ,  DOOSEOK CHOI ,  HYUNG SUN LIM ,  JOONHOI HUR

IPC: H04B1/38 ,  G01S13/04 ,  H04W52/18

CPC classification number: H04B1/38 ,  G01S13/04 ,  H04W52/18 ,  G01S7/006

Abstract: An electronic device is provided. The electronic device includes: a transceiver configured to transmit and receive a wireless signal; and a processor configured to: control a measurement circuit to identify a transmission/reception power ratio of the wireless signal; control a converter to transform the transmission/reception power ratio into frequency domain data; detect whether an object is adjacent the electronic device, based on the frequency domain data and an adjustable threshold; and control the transceiver based on whether the object is detected adjacent the electronic device.

公开(公告)号：US20250125825A1

公开(公告)日：2025-04-17

申请号：US18743260

申请日：2024-06-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： SUMIN KIM ,  HONGMIN CHOI ,  MIN-SIK KIM ,  CHANGHYUN BAEK ,  HYUNG SUN LIM ,  JOONHOI HUR

IPC: H04B1/04 ,  H04L27/36

Abstract: A radio-frequency (RF) circuit including: a multi-tone generation circuit configured to generate a multi-tone signal including a plurality of tones; a predistortion circuit configured to predistort the multi-tone signal or a modulation signal and output a predistortion signal; a power amplifier configured to amplify the predistortion signal and output an output signal; and a predistortion modeling circuit configured to model a predistortion model corresponding to the predistortion circuit based on the predistortion signal corresponding to the multi-tone signal and the output signal.

公开(公告)号：US20250080052A1

公开(公告)日：2025-03-06

申请号：US18626840

申请日：2024-04-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： KYUNGWOO YOO ,  JOONHOI HUR

IPC: H03F1/02 ,  H03F3/24

Abstract: A power amplifier control device includes a measuring circuit and a supply voltage regulation circuit. The measured circuit measures an adjacent channel leakage ratio (ACLR) of a power amplifier to generate a measured ACLR. The supply voltage regulation circuit determines a regulated supply voltage from an ACLR model defined based on a change level of a supply voltage of the power amplifier and a change level of the measured ACLR defined, and transfers the regulated supply voltage to the power amplifier. The measured ACLR is a difference between a reference ACLR and the measured ACLR.