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公开(公告)号：US10998873B2
公开(公告)日：2021-05-04
申请号：US16374724
申请日：2019-04-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xun Luo , Huizhen Qian
Abstract: Embodiments of this application provide a capacitor unit, an integrated capacitor, and a resonance unit. The capacitor unit includes: a conductive cavity, where an accommodation space is set longitudinally through in the conductive cavity; and a conductive core, where a first part of the conductive core and a second part of the conductive core are connected by using a via hole, the first part of the conductive core is located above or below the conductive cavity, and the second part of the conductive core is located in the accommodation space of the conductive cavity; and the conductive cavity is isolated from the conductive core by using an oxide layer or an insulation layer. The embodiments of this application can reduce impact from the outside on the capacitor unit, and therefore stability of the capacitor unit can be improved.
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公开(公告)号：US10673111B2
公开(公告)日：2020-06-02
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：US10547488B2
公开(公告)日：2020-01-28
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：US20180076999A1
公开(公告)日：2018-03-15
申请号：US15816073
申请日：2017-11-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xun Luo , Jian Liang
CPC classification number: H04L27/361 , H04B1/04 , H04L27/368
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：US20170373363A1
公开(公告)日：2017-12-28
申请号：US15634226
申请日：2017-06-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie ZHOU , Huizhen Qian , Xun Luo
CPC classification number: H01P5/12 , H01P1/184 , H01P3/003 , H01P5/02 , H01P5/08 , H01Q3/34 , H01Q21/0075 , H01Q21/22 , H03H7/18
Abstract: The present invention relates to the field of communications technologies and discloses a phase shifter and a feed network. The phase shifter includes at least one phase shift component. The phase shift component includes a substrate, a microstrip coupling structure disposed on a first plane of the substrate, a microstrip transmission line connected to and coplanar with the microstrip coupling structure, and a microstrip/coplanar-waveguide coupling structure, where the microstrip/coplanar-waveguide coupling structure includes a microstrip connected to and coplanar with the microstrip transmission line, and a coplanar waveguide disposed opposite to the microstrip on the substrate and coupled with the microstrip. A phase shifter using a microstrip/coplanar-waveguide coupling structure has a small volume and costs low, thereby facilitating feed network design.
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Patent Agency Ranking
公开(公告)号：US10805143B2
公开(公告)日：2020-10-13
申请号：US16549646
申请日：2019-08-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huizhen Qian , Xun Luo
Abstract: The present disclosure relates to polar phased-array transmitter and mobile terminals. One example mobile terminal includes a polar phased-array transmitter and an antenna array. The polar phased-array transmitter is configured 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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公开(公告)号：US10742167B2
公开(公告)日：2020-08-11
申请号：US16563283
申请日：2019-09-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yiyang Shu , Huizhen Qian , Xun Luo
Abstract: A dual-mode oscillator and a multi-phase oscillator includes a mode switching circuit to switch between two operating modes and obtain oscillation signals having two different bands. The dual-mode oscillator also includes two transformer-coupled oscillators with each having a step-up transformer. The step-up transformer multiplies a drain voltage swing of a first metal oxide semiconductor (MOS) transistor and then injects a voltage signal to a gate of a second MOS transistor to obtain a larger gate voltage swing without increasing a supply voltage of the oscillator. The dual-mode oscillators are coupled through multi-phase coupled circuits to form a Mobius loop.
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公开(公告)号：US20200007081A1
公开(公告)日：2020-01-02
申请号：US16563283
申请日：2019-09-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yiyang Shu , Huizhen Qian , Xun Luo
Abstract: A dual-mode oscillator and a multi-phase oscillator includes a mode switching circuit to switch between two operating modes and obtain oscillation signals having two different bands. The dual-mode oscillator also includes two transformer-coupled oscillators with each having a step-up transformer. The step-up transformer multiplies a drain voltage swing of a first metal oxide semiconductor (MOS) transistor and then injects a voltage signal to a gate of a second MOS transistor to obtain a larger gate voltage swing without increasing a supply voltage of the oscillator. The dual-mode oscillators are coupled through multi-phase coupled circuits to form a Mobius loop.
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公开(公告)号：US10461390B2
公开(公告)日：2019-10-29
申请号：US15634226
申请日：2017-06-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie Zhou , Huizhen Qian , Xun Luo
IPC: H01P5/12 , H01P1/18 , H01P5/08 , H01Q21/00 , H01P3/00 , H01P5/02 , H03H7/18 , H01Q3/34 , H01Q21/22
Abstract: The present invention relates to the field of communications technologies and discloses a phase shifter and a feed network. The phase shifter includes at least one phase shift component. The phase shift component includes a substrate, a microstrip coupling structure disposed on a first plane of the substrate, a microstrip transmission line connected to and coplanar with the microstrip coupling structure, and a microstrip/coplanar-waveguide coupling structure, where the microstrip/coplanar-waveguide coupling structure includes a microstrip connected to and coplanar with the microstrip transmission line, and a coplanar waveguide disposed opposite to the microstrip on the substrate and coupled with the microstrip. A phase shifter using a microstrip/coplanar-waveguide coupling structure has a small volume and costs low, thereby facilitating feed network design.
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公开(公告)号：US10257015B2
公开(公告)日：2019-04-09
申请号：US15816073
申请日：2017-11-17
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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