Mixer for reducing local frequency signal generated at output of the mixer

    公开(公告)号:US10763789B2

    公开(公告)日:2020-09-01

    申请号:US16740317

    申请日:2020-01-10

    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.

    Device and method for variable signal attenuation in wireless communication system

    公开(公告)号:US12218397B2

    公开(公告)日:2025-02-04

    申请号:US17769447

    申请日:2020-10-16

    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.

    Electronic device including plurality of antenna arrays

    公开(公告)号:US10897280B2

    公开(公告)日:2021-01-19

    申请号:US16725243

    申请日:2019-12-23

    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. The electronic device includes a first antenna module including a first amplifier configured to amplify a signal received from a communication circuit, a second antenna module including a second amplifier configured to amplify a signal received from the communication circuit, and an impedance matching circuit disposed between an output terminal of the first amplifier and an output terminal of the second amplifier.

    Apparatus and method for transmitting and receiving signals on multiple bands in wireless communication system

    公开(公告)号:US11374609B2

    公开(公告)日:2022-06-28

    申请号:US17072512

    申请日:2020-10-16

    Abstract: A transceiver in a wireless communication system is provided. The transceiver includes a first circuit configured to convert a digital signal having a third bandwidth, a second circuit configured to separate the analog signal into a first analog signal corresponding to the first band and a second analog signal corresponding to the second band, up-convert the first analog signal and the second analog signal to generate a first radio frequency (RF) signal in the first band and a second RF signal in the second band, and output an RF signal having the third bandwidth, and a third circuit configured to separate the RF signal into the first RF signal and the second RF signal, adjust a phase of the first RF signal for beamforming in the first band, and adjust a phase of the second RF signal for beamforming in the second band.

    Electronic device including plurality of phased locked loop circuits

    公开(公告)号:US10720930B2

    公开(公告)日:2020-07-21

    申请号:US16434893

    申请日:2019-06-07

    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.

    Apparatus and method for amplifying transmission signals in wireless communication system

    公开(公告)号:US11362690B2

    公开(公告)日:2022-06-14

    申请号:US17262961

    申请日:2019-07-25

    Abstract: The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE). The present disclosure is to amplify transmission signals in a wireless communication system, and a transmitting device may include an antenna array including a plurality of antenna elements, a plurality of amplification chains for amplifying signals transmitted through the plurality of the antenna elements, and a power supply line for supplying powers to the plurality of the amplification chains. Herein, the powers used by power amplifiers included in at least one amplification chain of the plurality of the amplification chains may be divided by filtering or by independent pads and branch-lines.

    Device for testing beam forming processor

    公开(公告)号:US11362419B2

    公开(公告)日:2022-06-14

    申请号:US16644736

    申请日:2018-08-29

    Abstract: The present invention relates to a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. In addition, the present invention provides a device for testing a beam forming processor, comprising: at least one power determination unit, which is electrically connected to the beam forming processor for performing beam forming, and determines the output power of the beam forming processor; and a control unit, which is connected to the power determination unit by wire and determines whether the beam forming processor is normal on the basis of the output power received from the power determination unit.

    DEVICE FOR TESTING BEAM FORMING PROCESSOR
    10.
    发明申请

    公开(公告)号:US20200266536A1

    公开(公告)日:2020-08-20

    申请号:US16644736

    申请日:2018-08-29

    Abstract: The present invention relates to a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. In addition, the present invention provides a device for testing a beam forming processor, comprising: at least one power determination unit, which is electrically connected to the beam forming processor for performing beam forming, and determines the output power of the beam forming processor; and a control unit, which is connected to the power determination unit by wire and determines whether the beam forming processor is normal on the basis of the output power received from the power determination unit.

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