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    Device and method for variable signal attenuation in wireless communication system
    1.
    发明授权
    Device and method for variable signal attenuation in wireless communication system 有权

    公开(公告)号：US12218397B2

    公开(公告)日：2025-02-04

    申请号：US17769447

    申请日：2020-10-16

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Donggyu Minn ,  Youngchang Yoon ,  Daehyun Kang ,  Kyuhwan An

    IPC: H01P1/22 ,  H03H11/28 ,  H03H11/40

    Abstract: The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate than a 4th generation (4G) communication system such as Long-Term Evolution (LTE). The present disclosure provides a device for variable signal attenuation equipped in a stack-up structure inside an RFIC. The device for signal attenuation comprises: a first transmission line positioned on a first layer inside the RFIC; a second transmission line positioned on a second layer, which is adjacent to the first layer, and electromagnetically coupled to the first transmission line; and a control unit. The first transmission line comprises an impedance control unit on one side. The control unit can variably control the impedance control unit.

    Amplifier with post-distortion linearization
    2.
    发明授权
    Amplifier with post-distortion linearization 有权

    公开(公告)号：US11128265B2

    公开(公告)日：2021-09-21

    申请号：US16734484

    申请日：2020-01-06

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Youngchang Yoon ,  Kyuhwan An ,  Jihoon Kim ,  Sangho Lee

    IPC: H03F1/22 ,  H03F1/32 ,  H03F3/16

    Abstract: A communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An amplifier includes a first transistor for amplifying the fundamental signal applied to a gate terminal, and a second transistor having a source terminal electrically connected to the drain terminal of the first transistor and a drain terminal electrically connected to a bias voltage. The current flowing through the second transistor may be determined based on the current flowing in the drain terminal of the first transistor.

    Mixer for reducing local frequency signal generated at output of the mixer
    5.
    发明授权
    Mixer for reducing local frequency signal generated at output of the mixer 有权

    公开(公告)号：US10763789B2

    公开(公告)日：2020-09-01

    申请号：US16740317

    申请日：2020-01-10

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Kihyun Kim ,  Daehyun Kang ,  Hyunchul Park ,  Kyuhwan An ,  Jaesik Jang

    IPC: H03D7/14 ,  H04B1/18 ,  H03D7/12

    Abstract: The disclosure relates to a communication method and system for converging a 5G communication system for supporting higher data rates beyond a 4G system with an IoT technology. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety-related services. The disclosure provides a mixer including a first impedance connected in parallel to a mixer output transformer and configured to remove a primary local frequency component generated at an output of the mixer, and a second impedance connected in parallel to the mixer output transformer and configured to remove a secondary local frequency component generated at the output of the mixer, wherein the first impedance operates as a series resonator in a primary local frequency band, and the second impedance operates as a parallel resonator in a secondary local frequency band.

    Four-way power divider and combiner for phased array system
    7.
    发明授权
    Four-way power divider and combiner for phased array system 有权

    公开(公告)号：US12009566B2

    公开(公告)日：2024-06-11

    申请号：US17421188

    申请日：2020-01-06

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Youngchang Yoon ,  Kyuhwan An ,  Bohee Suh ,  Sangho Lee

    IPC: H01P5/16 ,  H04B1/38

    CPC classification number: H01P5/16 ,  H04B1/38

    Abstract: Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as LTE. The present invention relates to a technique for implementing, in a compact form, a four-way power divider and combiner for a phased array system. More particularly, according to one embodiment of the present invention, a power divider including one input port and four output ports comprises an input terminal inductor having one end connected to the input port and the other end connected to the ground, an inductor group including four output terminal inductors, and four connection units for connecting the input port and the inductor group, wherein four secondary inductors are respectively connected to the four connection units so that four nodes are formed between the four connection units and the inductor group, and the output ports are respectively disposed on the four connection units between the input port and the inductor group.

    Electronic device including plurality of phased locked loop circuits
    10.
    发明授权
    Electronic device including plurality of phased locked loop circuits 有权

    公开(公告)号：US10720930B2

    公开(公告)日：2020-07-21

    申请号：US16434893

    申请日：2019-06-07

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Youngchang Yoon ,  Kyuhwan An ,  Daehyun Kang ,  Juho Son ,  Sunggi Yang ,  Donghyun Lee ,  Yunsung Cho

    IPC: H03L7/183 ,  H03L7/22 ,  H03L7/07 ,  H04W72/04 ,  H03L7/197

    Abstract: A communication technique for converging internet of everything (IoT) technology with a 5th generation (5G) communication system for supporting a higher data transfer rate beyond a 4G system is provided. The communication technique can be applied to intelligent services, based on 5G communication technology and IoT-related technology. In an embodiment, an electronic device includes a first processor configured to output a first signal for generating a first frequency signal, a second processor configured to output a second signal for generating a second frequency signal, a first radio frequency (RF) chip configured to output the first frequency signal, based on the first signal received from the first processor and a baseband signal, and a second RF chip configured to output the second frequency signal, based on the second signal received from the second processor and the first frequency signal outputted from the first RF chip.

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