公开(公告)号：US20230378943A1

公开(公告)日：2023-11-23

申请号：US18156106

申请日：2023-01-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyeongjin KIM ,  Hyohyun NAM ,  Dongki KIM ,  Dae Young LEE

IPC: H03K5/00 ,  H03K17/56

CPC classification number: H03K5/00006 ,  H03K17/56

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system or a 6th-Generation (6G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system. A frequency multiplier of a wireless communication system is provided. The frequency multiplier includes an input circuit to which a local oscillator (LO) signal is input, a multiplier circuit having one end connected to the input circuit and another end connected to a lower terminal of a load circuit, a load circuit having an upper terminal connected to a voltage controller, and a voltage controller configured between the upper terminal of the load circuit and an input power source, wherein the voltage controller may be configured to drop a voltage between the input power source and the upper terminal of the load circuit and reinput a feedback voltage based on an upper terminal voltage of the load circuit to the voltage controller, and a method of multiplying a frequency using the same.

公开(公告)号：US20240333321A1

公开(公告)日：2024-10-03

申请号：US18615412

申请日：2024-03-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyohyun NAM ,  Jungsik KIM ,  Daeyoung LEE ,  Heesung LEE

IPC: H04B1/00 ,  H04B1/04

CPC classification number: H04B1/0078 ,  H04B1/04 ,  H04B2001/0408

Abstract: The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A low noise amplifier (LNA) in a wireless communication system according to an embodiment of the disclosure includes a first transistor and a first feedback transformer in which a gate of the first transistor is connected to a primary coil of the first feedback transformer and a source of the first transistor is connected to a secondary coil of the first feedback transformer. The first feedback transformer is configured to implement positive feedback to maintain an in-phase signal at the gate of the first transistor and the source of the first transistor.

公开(公告)号：US20240322849A1

公开(公告)日：2024-09-26

申请号：US18305738

申请日：2023-04-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jungsik KIM ,  Dongki KIM ,  Seongkyun KIM ,  Hyohyun NAM ,  Daeyoung LEE ,  Chaejun LEE

IPC: H04B1/04 ,  H03F1/56 ,  H03F3/21

CPC classification number: H04B1/04 ,  H03F1/565 ,  H03F3/21

Abstract: A communication device configured to transmit/receive a radio frequency (RF) signal is provided. The device includes a transceiver including an amplifier device using a multi-loop inter-stage matching (ISM) transformer, and a processor configured to control an operation of the amplifier based on a signal strength during transmission/reception of the RF signal. The transformer is disposed between a first amplifier and a second amplifier and includes a plurality of primary loops and a plurality of secondary loops, each primary loop includes an inductor component having a different size and a different Q-factor and each secondary loop includes an inductor component having a different size and a different Q-factor. The processor adjusts an attenuation level of the transformer by controlling a switching connection to the first amplifier and the second amplifier for one primary loop among the plurality of primary loops and one secondary loop among the plurality of secondary loops.

公开(公告)号：US20210058102A1

公开(公告)日：2021-02-25

申请号：US16999552

申请日：2020-08-21

Applicant: Samsung Electronics Co., Ltd. ,  Dongguk University Industry-Academic Cooperation Foundation

Inventor： Jung-Dong PARK ,  Woojae LEE ,  Juho SON ,  Hyohyun NAM

IPC: H04B1/04 ,  H03F3/45 ,  H04B1/30

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). An operation method of a device for upconversion in a wireless communication system is provided. The method includes receiving a first local oscillator (LO) signal, generating a second LO signal, based on the first LO signal and cross-coupled latches, receiving an input signal, generating an upconverted frequency, based on the second LO signal and the input signal, generating an output signal obtained by processing a harmonic component included in the upconverted frequency, and transmitting the generated output signal.