公开(公告)号：US11962339B2

公开(公告)日：2024-04-16

申请号：US17139947

申请日：2020-12-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Michael Chen ,  Khurram Muhammad ,  Xinguang Xu

IPC: H04B1/12 ,  H03H17/00 ,  H03H17/02 ,  H03H17/08 ,  H04B7/0413

CPC classification number: H04B1/123 ,  H03H17/0054 ,  H03H17/02 ,  H03H17/08 ,  H03H2017/0081 ,  H04B7/0413

Abstract: A radio frequency (RF) unit and a method for RF isolation. The RF unit includes first and second RF couplers, an RF filter, and an RF canceler connected in parallel with the RF filter. The first RF coupler is configured to receive an input signal. The RF filter is configured to receive a first portion of the input signal from the first RF coupler and attenuate frequencies outside of a passband of the RF filter from the first portion of the input signal. The RF canceler is configured to receive a second portion of the input signal from the first RF coupler and generate a cancellation signal from the second portion of the input signal based on a target frequency band of the RF canceler. The second RF coupler is configured to combine the cancellation signal with an output of the RF filter to generate an output signal.

公开(公告)号：US11735800B2

公开(公告)日：2023-08-22

申请号：US17381100

申请日：2021-07-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tsung-Hao Chuang ,  Daquan Huang ,  Michael Chen ,  Shenggang Dong

IPC: H03B5/18 ,  H03B27/00 ,  H01P1/18 ,  H01P3/02 ,  H03B28/00

CPC classification number: H01P1/18 ,  H01P3/02 ,  H03B5/18 ,  H03B27/00 ,  H03B28/00

Abstract: The present disclosure relates to an oscillator apparatus comprising a differential transmission line forming a closed loop, a plurality of active core components that are electrically connected to the differential transmission line and that are configured to compensate for loss in the differential transmission line, a plurality of tuning elements that are electrically coupled with the differential transmission line, and a processor configured to control each tuning element of the plurality of tuning elements to activate or deactivate such that an effective electrical length of the differential transmission line is changed.

公开(公告)号：US20220069856A1

公开(公告)日：2022-03-03

申请号：US17139947

申请日：2020-12-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Michael Chen ,  Khurram Muhammad ,  Xinguang Xu

IPC: H04B1/12 ,  H03H17/00 ,  H03H17/02 ,  H03H17/08

Abstract: A radio frequency (RF) unit and a method for RF isolation. The RF unit includes first and second RF couplers, an RF filter, and an RF canceler connected in parallel with the RF filter. The first RF coupler is configured to receive an input signal. The RF filter is configured to receive a first portion of the input signal from the first RF coupler and attenuate frequencies outside of a passband of the RF filter from the first portion of the input signal. The RF canceler is configured to receive a second portion of the input signal from the first RF coupler and generate a cancellation signal from the second portion of the input signal based on a target frequency band of the RF canceler. The second RF coupler is configured to combine the cancellation signal with an output of the RF filter to generate an output signal.