APPARATUS AND METHOD FOR AMPLIFYING TRANSMISSION SIGNALS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210273665A1

    公开(公告)日:2021-09-02

    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.

    ELECTRONIC DEVICE INCLUDING PLURALITY OF PHASED LOCKED LOOP CIRCUITS

    公开(公告)号:US20190379385A1

    公开(公告)日:2019-12-12

    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.

    DEVICE AND METHOD FOR VARIABLE SIGNAL ATTENUATION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240128625A1

    公开(公告)日:2024-04-18

    申请号:US17769447

    申请日:2020-10-16

    CPC classification number: H01P1/227 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.

    METHOD AND APPARATUS FOR CALIBRATING PHASED ARRAY ANTENNA

    公开(公告)号:US20230031668A1

    公开(公告)日:2023-02-02

    申请号:US17758494

    申请日:2021-01-08

    Abstract: The present disclosure relates to a communication technique for merging, with an IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security- and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology. The present disclosure discloses a method for calibration of a phased array antenna.

    APPARATUS AND METHOD FOR AMPLIFYING POWER IN TRANSMISSION DEVICE

    公开(公告)号:US20210218376A1

    公开(公告)日:2021-07-15

    申请号:US17250748

    申请日:2019-08-28

    Abstract: Disclosed is a 5G (5th generation) or pre-5G communication system for supporting a data transmission rate higher than that of a 4G (4th generation) communication system such as long-term evolution (LTE). A transmission device comprises: a first amplification unit having a common source structure, including cross coupled capacitors, and amplifying an input signal; a second amplification unit, having a common gate structure, for amplifying a signal output from the first amplification unit; and a first removal unit which is connected to output terminals of the first amplification unit and input terminals of the second amplification unit and which removes at least one portion of second harmonics. The first removal unit can offset, with respect to a fundamental frequency, at least some of parasitic capacitance generated from the output terminals of the first amplification unit and the input terminals of the second amplification unit, and can ground a signal having a secondary harmonic frequency with respect to the secondary harmonic frequency.

    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS ON MUTIPLE BANDS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210119662A1

    公开(公告)日:2021-04-22

    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.

    MIXER FOR REDUCING LOCAL FREQUENCY SIGNAL GENERATED AT OUTPUT OF THE MIXER

    公开(公告)号:US20200228062A1

    公开(公告)日:2020-07-16

    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.

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