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公开(公告)号：US10276904B2
公开(公告)日：2019-04-30
申请号：US15625374
申请日：2017-06-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zeming Zhang , Huizhen Qian , Xun Luo
Abstract: A resonant unit and a filter, where the resonant unit includes a dielectric substrate, a metal microstrip disposed on a plane of the dielectric substrate, where the metal microstrip is used as a signal input/output port, and a defected ground structure disposed on another plane opposite to the plane of the dielectric substrate, where the defected ground structure includes a ground loop and an interdigital structure located inside the ground loop, the interdigital structure includes multiple fingers, and the ground loop or at least one finger in the interdigital structure includes at least one embedded interdigital structure. Harmonic suppression capabilities of the resonant unit and the filter can be improved, and an area can be reduced.
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公开(公告)号：US20180248243A1
公开(公告)日：2018-08-30
申请号：US15965390
申请日：2018-04-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bingzheng Yang , Huizhen Qian , Xun Luo
Abstract: A filter is provided, and the filter includes two mutually coupled slow-wave resonators. Each resonator includes a coplanar waveguide (CPW) transmission line, a tapered CPW transmission line, and a ground stub, and can generate a slow-wave feature to push a high-order harmonic wave of a baseband signal to a high frequency, so as to implement a wide stopband feature. In addition, a slow-wave effect is used to properly design a size of a filter, to reduce an entire area of the filter and reduce costs. Moreover, two resonators are coupled, to enhance passband performance of the filter, increase bandwidth, increase in-passband flatness, and reduce an insertion loss.
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公开(公告)号：US20180145660A1
公开(公告)日：2018-05-24
申请号：US15816163
申请日：2017-11-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huizhen Qian , Xun Luo
IPC: H03H11/22
Abstract: A digital phase shifter includes a logic control circuit, at least four current digital-to-analog converters, at least four amplifiers, and a vector summation circuit. The logic control circuit generates four N-bit digital phase shift control signals according to an (N+2)-bit digital control source signal, and respectively inputs the four N-bit digital phase shift control signals to the four current digital-to-analog converters. The four current digital-to-analog converters are respectively connected in series with the four amplifiers, to implement selection and amplification on four orthogonal input signals, and the vector summation circuit synthesizes amplified signals that are output by the four amplifiers, to obtain a signal having a 360 degree (°) phase shift range.
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4.发明授权Transmitter, receiver, and method for receiving and transmitting a radio frequency signal 有权用于接收和发送射频信号的发射机，接收机和方法公开(公告)号：US09264279B2
公开(公告)日：2016-02-16
申请号：US14699823
申请日：2015-04-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04L27/36 , H03F3/24 , H04B1/04 , H04B1/40 , H04B2001/0408 , H04L27/0002 , H04L27/38
Abstract: The present invention discloses a transmitter, a receiver, and a method for receiving and transmitting a radio frequency signal, and relates to the field of radio communications technologies, which can perform carrier recovery and generation at a front end of a radio frequency circuit, thereby reducing a running cost of a baseband chip. The method includes: generating, by an amplitude discriminator/phase detector according to an intermediate-frequency analog signal, a signal amplitude pulse signal/signal phase pulse signal that is not corrected; generating, by a bit error matrix corrector, an amplitude/phase correction control signal; correcting, by the amplitude discriminator/phase detector, the signal amplitude pulse signal/signal phase pulse signal according to the amplitude/phase correction control signal; and converting, by an amplitude code generator/phase code generator, a corrected pulse signal into a corresponding digital code. The present invention is applicable to receiving/transmitting a radio frequency signal.
Abstract translation: 本发明公开了一种用于接收和发送射频信号的发射机，接收机和方法，涉及能够在射频电路的前端执行载波恢复和生成的无线电通信技术领域，从而 降低基带芯片的运行成本。 该方法包括：通过根据中频模拟信号的幅度鉴别器/相位检测器产生未校正的信号幅度脉冲信号/信号相位脉冲信号; 通过位误差矩阵校正器产生振幅/相位校正控制信号; 通过幅度鉴别器/相位检测器根据振幅/相位校正控制信号校正信号幅度脉冲信号/信号相位脉冲信号; 并通过幅度码发生器/相位码发生器将校正的脉冲信号转换成相应的数字码。 本发明可应用于接收/发射射频信号。
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公开(公告)号：US10411943B2
公开(公告)日：2019-09-10
申请号：US16249383
申请日：2019-01-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huizhen Qian , Xun Luo
Abstract: The present disclosure relates to a polar phased-array transmitter and a mobile terminal. One example mobile terminal includes a baseband chip, the polar phased-array transmitter, and an antenna array. The baseband chip is configured to generate a quadrature digital baseband signal. The polar phased-array transmitter is configured to perform quadrature-to-polar conversion on the quadrature digital baseband signal to generate n amplitude signals and n phase signals, separately perform phase modulation and phase shifting on the n phase signals by using a local oscillator signal to obtain n phase modulation signals, and perform amplitude modulation and power amplification on the n phase modulation signals by using the amplitude signals to obtain n radio frequency signals. n is a natural number greater than 1. The antenna array is configured to obtain the n radio frequency signals from the polar phased-array transmitter, and transmit the n radio frequency signals.
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Patent Agency Ranking
公开(公告)号：US10128817B2
公开(公告)日：2018-11-13
申请号：US15816163
申请日：2017-11-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huizhen Qian , Xun Luo
Abstract: A digital phase shifter includes a logic control circuit, at least four current digital-to-analog converters, at least four amplifiers, and a vector summation circuit. The logic control circuit generates four N-bit digital phase shift control signals according to an (N+2)-bit digital control source signal, and respectively inputs the four N-bit digital phase shift control signals to the four current digital-to-analog converters. The four current digital-to-analog converters are respectively connected in series with the four amplifiers, to implement selection and amplification on four orthogonal input signals, and the vector summation circuit synthesizes amplified signals that are output by the four amplifiers, to obtain a signal having a 360 degree (°) phase shift range.
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公开(公告)号：US20170365903A1
公开(公告)日：2017-12-21
申请号：US15625374
申请日：2017-06-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zeming Zhang , Huizhen Qian , Xun Luo
CPC classification number: H01P1/203 , H01P1/20327 , H01P7/082
Abstract: A resonant unit and a filter, where the resonant unit includes a dielectric substrate, a metal microstrip disposed on a plane of the dielectric substrate, where the metal microstrip is used as a signal input/output port, and a defected ground structure disposed on another plane opposite to the plane of the dielectric substrate, where the defected ground structure includes a ground loop and an interdigital structure located inside the ground loop, the interdigital structure includes multiple fingers, and the ground loop or at least one finger in the interdigital structure includes at least one embedded interdigital structure. Harmonic suppression capabilities of the resonant unit and the filter can be improved, and an area can be reduced.
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8.发明申请公开(公告)号：US20140022830A1
公开(公告)日：2014-01-23
申请号：US14029317
申请日：2013-09-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xun Luo
IPC: H02M1/12
Abstract: The present disclosure provides a method, includes: a first stepped-impedance transmission line configured to receive a first signal of a first differential signal; a second stepped-impedance transmission line configured to receive a second signal of the first differential signal, where the first stepped-impedance transmission line and the second stepped-impedance transmission line superpose the first signal of the first differential signal on the second signal of the first differential signal to obtain a first frequency multiplied signal; a first inverse stepped-impedance transmission line configured to be inversely ground-coupled with the first stepped-impedance transmission line and grounded at an end near an output end of the first stepped-impedance transmission line; a second inverse stepped-impedance transmission line configured to be inversely ground-coupled with the second stepped-impedance transmission line and grounded at an end near an output end of the second stepped-impedance transmission line.
Abstract translation: 本公开提供了一种方法，包括：第一阶梯阻抗传输线，被配置为接收第一差分信号的第一信号; 第二级阻抗传输线，被配置为接收第一差分信号的第二信号，其中第一级阻抗传输线和第二级阻抗传输线将第一差分信号的第一信号叠加在第二差分信号的第二信号上 第一差分信号以获得第一倍频信号; 第一逆阶阻抗传输线，被配置为与所述第一阶梯阻抗传输线反地耦合，并且在所述第一阶梯阻抗传输线的输出端附近的一端接地; 第二反阶梯阻抗传输线，被配置为与所述第二阶梯阻抗传输线反地耦合，并且在所述第二阶梯式阻抗传输线的输出端附近的一端接地。
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公开(公告)号：US20190207799A1
公开(公告)日：2019-07-04
申请号：US16295630
申请日：2019-03-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xun Luo , Jian Liang
Abstract: A polar transmitter includes an amplitude path comprising an amplitude signal that corresponds to an amplitude of a vector sum of an in-phase input signal and a quadrature input signal; a phase path comprising a phase modulator configured to phase-modulate a phase signal that corresponds to the phase of the vector sum of the in-phase input signal and the quadrature input signal; a digital power amplifier (DPA) configured to amplify the phase-modulated (PM) input signal based on the amplitude signal; a tunable matching network coupled to an output of the DPA and configured to adjust a load impedance of the DPA; and a controller configured to adjust the matching network based on a look-up table with respect to amplitude and frequency information, where the look-up table indicates a plurality of optimal operation modes of the matching network for specific combinations of amplitude and frequency information.
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公开(公告)号：US12155510B2
公开(公告)日：2024-11-26
申请号：US17826627
申请日：2022-05-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huizhen Qian , Xun Luo
Abstract: A radio frequency transmitter is provided. The radio frequency transmitter includes a radio frequency front-end and a control circuit. The radio frequency front-end includes a current source set, a compensation circuit, and a matching network. The compensation circuit may compensate for a difference of load impedance between N current source subsets in the current source set. Therefore, an impedance mismatch of the current source set may be alleviated, and a power loss of the current source set may be avoided. This helps improve the efficiency of the radio frequency transmitter.
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