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公开(公告)号：US20190229695A1
公开(公告)日：2019-07-25
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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Patent Agency Ranking
公开(公告)号：US20190149386A1
公开(公告)日：2019-05-16
申请号：US16249383
申请日：2019-01-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huizhen QIAN , Xun LUO
CPC classification number: H04L27/36 , H04B1/04 , H04B2001/0408 , H04L25/02
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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公开(公告)号：US20220286333A1
公开(公告)日：2022-09-08
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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公开(公告)号：US20170324381A1
公开(公告)日：2017-11-09
申请号：US15661731
申请日：2017-07-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huizhen QIAN , Xun LUO , Robert Bogdan STASZEWSKI
CPC classification number: H03F1/223 , H01F19/08 , H01F27/2804 , H01F2019/085 , H01F2027/2809 , H01F2027/2819 , H03F1/086 , H03F1/56 , H03F3/193 , H03F3/211 , H03F3/2173 , H03F3/245 , H03F2200/09 , H03F2200/451 , H03F2200/537 , H03F2200/541 , H03H7/38 , H03H7/42
Abstract: A transformer includes: a primary winding comprising a first port, a second port and a metal layer connected between the first port and the second port, the metal layer comprising a plurality of sections of different electrical lengths and/or characteristic impedances; and a secondary winding electromagnetically coupled with the primary winding, the secondary winding comprising a first port, a second port and a metal layer connected between the first port and the second port, the metal layer comprising a plurality of sections of different electrical lengths and/or characteristic impedances.
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公开(公告)号：US20190379571A1
公开(公告)日：2019-12-12
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：US20190081595A1
公开(公告)日：2019-03-14
申请号：US16185847
申请日：2018-11-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xun LUO , Huizhen QIAN
IPC: H03B5/12
Abstract: The present invention provides a voltage waveform shaping oscillator, including a signal source and a coupling transformer. An output end of the signal source is connected to an input end of the coupling transformer, and an input end of the signal source is connected to an output end of the coupling transformer. The signal source is configured to: receive, by using the input end of the signal source, a quasi-square wave signal output by the output end of the coupling transformer, generate an original signal based on the quasi-square wave signal, and send the original signal to the input end of the coupling transformer by using the output end of the signal source. The coupling transformer is configured to: perform filtering processing on the original signal to obtain the quasi-square wave signal. The voltage waveform shaping oscillator is configured to reduce phase noise of an oscillator.
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