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公开(公告)号：US20180123240A1
公开(公告)日：2018-05-03
申请号：US15854224
申请日：2017-12-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhiqiang LIAO , Qiyi LU , Xinneng LUO , Junfeng LU
CPC classification number: H01Q3/32 , H01P1/18 , H01P1/184 , H01P1/20 , H01P1/2039
Abstract: A phase shifter may include a cavity body, and a fixed circuit board and a phase shift unit that are located inside the cavity body, and the phase shift unit being capable of moving relative to the fixed circuit board. A power division circuit is disposed on the fixed circuit board. The power division circuit includes an input end, a main feeder, a node, at least two output ends, a filtering stub, and at least two output circuits. The main feeder is electrically connected between the input end and the node. The filtering stub is electrically connected to the main feeder, and the filtering stub is in an open-circuit state. The at least two output circuits are respectively electrically connected between the node and the at least two output ends. The phase shift unit is disposed in correspondence with the at least two output circuits.
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公开(公告)号：US20170179594A1
公开(公告)日：2017-06-22
申请号：US15454693
申请日：2017-03-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhiqiang LIAO , Lei CHEN , Huifan LIN , Xinneng LUO
CPC classification number: H01Q3/32 , H01P1/184 , H01Q1/246 , H01Q9/0485
Abstract: A phase shifter includes a cavity (100) and a first fixed transmission line (301), a second fixed transmission line (302), and a slidable transmission line (201) that are located in the cavity (100). The first fixed transmission line (301) is provided with a first open slot (3011), the second fixed transmission line (302) is provided with a second open slot (3021), and opening directions of the first open slot (3011) and the second open slot (3021) are opposite to each other. Two ends of the slidable transmission line (201) are respectively clamped in the first open slot (3011) and the second open slot (3021), so that the slidable transmission line (201) is electrically connected to the first fixed transmission line (301) and the second fixed transmission line (302). The slidable transmission line (201) slides relative to the first fixed transmission line (301) and the second fixed transmission line (302).
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公开(公告)号：US20180248256A1
公开(公告)日：2018-08-30
申请号：US15966835
申请日：2018-04-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Weihong XIAO , Zhiqiang LIAO
CPC classification number: H01Q1/48 , H01Q1/246 , H01Q1/36 , H01Q1/405 , H01Q3/32 , H01Q3/44 , H01Q5/40 , H01Q9/06 , H01Q9/065 , H01Q9/16 , H01Q19/108 , H01Q19/17 , H01Q21/0081 , H01Q21/24 , H01Q21/245 , H01Q21/26 , H01Q21/28
Abstract: The present invention relates to the field of communications technologies and discloses an antenna system, and the antenna system includes: a radiating element, at least one strip line ground plane and signal cavity, and at least one inner conductor, where the radiating element includes radiation arms, radiation baluns, and feeding inner cores; the strip line ground plane is used as a reflective surface of the radiating element; the baluns of the radiating element are electrically connected to the strip line ground plane, and all of at least two feeding inner cores of the radiating element are electrically connected to one inner conductor. Therefore, a feeding manner of an existing array antenna can be optimized very conveniently, assembly time is greatly reduced, quantities of welding points and cables are reduced, and consistency and reliability are improved.
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公开(公告)号：US20180083335A1
公开(公告)日：2018-03-22
申请号：US15824895
申请日：2017-11-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhiqiang LIAO , Weihong XIAO , Qiyi LU , Zhuozhen XU
CPC classification number: H01P5/085 , H01P1/184 , H01P3/087 , H01P3/088 , H01P5/026 , H01P5/028 , H01R4/02 , H01R4/06 , H01R9/05
Abstract: A cable and a high-frequency device are provided to reduce passive intermodulation interference. The cable includes a strip line and a coaxial line. The strip line includes (in an outer-to-inner sequence) a strip-line outer conductor, a strip-line signal cavity, and a strip-line inner conductor. The coaxial line includes (in an outer to inner sequence) a coaxial-line outer conductor, a first insulation medium, and a coaxial-line inner conductor. The cable further includes a coupling ground plane provided with a coupling aperture portion. The coaxial line is disposed in the coupling aperture portion, the coaxial-line outer conductor is coupled to the coupling ground plane, the strip-line outer conductor is connected to the coupling ground plane, and the strip-line inner conductor is connected to the coaxial-line inner conductor.
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公开(公告)号：US20230352833A1
公开(公告)日：2023-11-02
申请号：US18344513
申请日：2023-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhiqiang LIAO , Weihong XIAO , Libiao WANG , Guoqing XIE
Abstract: A feeding network, an antenna, an antenna system, a base station, and a beam forming method. The antenna includes an array antenna, a feeding network, and an antenna port. The array antenna includes a plurality of radiating elements. Each output of each feeding network is connected to at least one radiating element in the array antenna. Each input of each feeding network is connected to the antenna port. Each feeding network has one input and two outputs, and one of the two outputs includes a phase shifter. The phase shifter has a first operating state to increase the coverage space of beam forming.
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Patent Agency Ranking
公开(公告)号：US20230093260A1
公开(公告)日：2023-03-23
申请号：US18071043
申请日：2022-11-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Weihong XIAO , Zhiqiang LIAO
Abstract: The present disclosure relates to base station antennas and base stations. One example base station antenna comprises an antenna array, a reflecting plate with a hole, a microstrip circuit comprising a first conductor strip, and a stripline cavity structure comprising a second conductor strip. The microstrip circuit and the stripline cavity structure are respectively located at opposite sides of the reflecting plate. The first conductor strip and the second conductor strip are connected through the hole.
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公开(公告)号：US20210151864A1
公开(公告)日：2021-05-20
申请号：US17158674
申请日：2021-01-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Weihong XIAO , Zhiqiang LIAO
Abstract: This application provides examples of a base station antenna, a switch, and a base station device. A connection status between an output port and an input port of a horizontal-dimensional feeding network is changed by using a switch of the horizontal-dimensional feeding network. In In different connection statuses, quantities of input ports that are connected to a plurality of output ports of the horizontal-dimensional feeding network are different. The input port of the horizontal-dimensional feeding network is in communication with an antenna port to form a transceiver channel. In this case, a quantity of transceiver channels, of the horizontal-dimensional feeding network, formed in each connection status is different. Therefore, the quantity of transceiver channels supported by the base station device can be changed by using the base station antenna without a need of replacing the base station antenna.
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公开(公告)号：US20200220252A1
公开(公告)日：2020-07-09
申请号：US16823980
申请日：2020-03-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Weihong XIAO , Zhiqiang LIAO
Abstract: The present disclosure relates to stripline cavity structures. One example stripline cavity structure is disposed on a back surface of a reflecting plate, and first avoidance holes are provided on the reflecting plate. The stripline cavity structure includes at least one second conductor strip, the stripline cavity structure is disposed on the back surface of the reflecting plate, and the second conductor strip passes through the first avoidance holes to be connected to the first conductor strip in a microstrip circuit.
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公开(公告)号：US20180316075A1
公开(公告)日：2018-11-01
申请号：US16023774
申请日：2018-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhiqiang LIAO , Zheng LIN , Qiyi LU , Xionghui FAN
Abstract: The present disclosure relates to a phase shifter, an antenna, and a radio communications device. One example phase shifter includes a cavity, a rotating shaft, a main printed circuit board (PCB), a first slidable part, and a second slidable part. The first slidable part is located on a front side of the main PCB and coupled to the main PCB. The second slidable part is located on a rear side of the main PCB and coupled to the main PCB. The rotating shaft is inserted into the cavity and connected to the first slidable part and the second slidable part. The first arc-shaped phase delay line and the second arc-shaped phase delay line are distributed on a circle with a center that is the same as a center of the rotating shaft, and are located on an outer side of a primary central coupling section.
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公开(公告)号：US20210167804A1
公开(公告)日：2021-06-03
申请号：US17171038
申请日：2021-02-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Weihong XIAO , Zhiqiang LIAO , Jianping LI , He CUI
IPC: H04B1/04 , H04L5/14 , H04B1/7093
Abstract: This application provides an antenna system and a base station. The antenna system includes a radiation array, a transceiver (TRX) unit, and a filter bank. The radiation array includes a transmit antenna element group and a receive antenna element group that are separately disposed. The transmit antenna element group is configured to transmit a signal, and the receive antenna element group is configured to receive a signal. The TRX unit includes a transmit module and a receive module. The filter bank includes a first-type filter and a second-type filter. The first-type filter is connected between the transmit antenna element group and the transmit module, and the second-type filter is connected between the receive antenna element group and the receive module. The antenna system in this application can reduce interference between a passive intermodulation (PIM) signal generated by a transmitted signal and a received signal.
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