Huawei Technologies Co., Limited

Zhiqiang Liao

Lei Chen

Weihong Xiao

Qiyi Lu

Xinneng Luo

Wei Su

Bin Wang

Qiang Wang

Jianping Li

Xinming Liu

Zheng Lin

Junfeng Lu

Yaojiang Zhang

He Cui

Yingtao Luo

Yili Xu

Zhuozhen Xu

Huifan Lin

Zhongwei Peng

Shaodong Liu

Xionghui Fan

Ruiming Ding

Yiyao Wu

Xinbo Ma

Tiejun Yang

Weiguang Shi

Tao Guan

Xiuyin Zhang

Chengdai Xue

Zhihan Chen

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.

Feed network of base station antenna, base station antenna, and base station

Embodiment high-frequency radiator includes two plus and minus 45-degree single-polarized radiators. The single-polarized radiator includes a radiation arm, a balun, a feeder circuit, a filter, and a ground plane. The radiation arm and the balun are electrically connected. The feeder circuit and the balun are separately disposed on two surfaces of a first dielectric plate that is placed vertically. The ground plane is disposed on a downward surface of a second dielectric plate that is placed horizontally. The first dielectric plate is vertically disposed on the second dielectric plate, and the filter includes a capacitor branch and an inductor branch. The inductor branch is disposed on a same surface of the first dielectric plate as the balun, the inductor branch is separately electrically connected to the balun and the ground plane, and the capacitor branch is coupled to the ground plane.

High-frequency radiator, multi-frequency array antenna, and base station

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.

Antenna system and base station

A base station antenna, including power dividers, network calibration modules, and connectors. The base station antenna includes at least two phase shifters. At least one phase shifter is integrated with a combiner, the connectors are connected to the network calibration modules, and the network calibration modules are connected to the phase shifters. The one phase shifter integrated with the combiner is connected to the power divider, and at least one output port of the at least one other phase shifter is connected to the phase shifter integrated with the combiner. The base station antenna has an integrated design of phase shifters and combiners.

Base station antenna

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.

One example printed circuit board transmission line includes a substrate layer, a metal line, at least one first welding point, at least one first transmission medium, and a metal component that is configured to implement a grounding function. The metal line is plated on a surface of the substrate layer. The at least one first welding point is a welding point at which the metal line is connected to the at least one first transmission medium. The at least one first welding point is welded to the metal line and welded to the at least one first transmission medium. The metal component is welded to the at least one first transmission medium. At least one groove is provided on one side of the at least one first welding point.

Printed circuit board transmission line and electronic device

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 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.

Base station antenna, switch, and base station device

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.

Phase shifter having arc-shaped phase delay lines on opposite sides of a PCB which are adjusted by slidable parts, an antenna, and radio communications device formed therefrom

A feeding network of a dual-beam antenna and a dual-beam antenna are disclosed. The feeding network includes: a cavity, including an upper grounding metal plate and a lower grounding metal plate; a printed circuit board PCB, disposed inside the cavity, where a splitting network circuit and a phase-shift circuit in the feeding network are integrated into the PCB, and arrangement of the PCB and the cavity enables a wire on the PCB to have a strip line structure as a whole; and at least two radio-frequency signal input ports, where the at least two radio-frequency signal input ports are connected to the splitting network circuit on the PCB.

Feeding network of dual-beam antenna and dual-beam antenna

A phase shifter and an antenna, in the field of communications technologies. The phase shifter includes a cavity, and a fixed component, a sliding component, a control rod configured to control sliding of the sliding component, and a dielectric portion in the cavity. A first strip group is disposed in the fixed component, where the first strip group includes two strips. The sliding component is located above the fixed component, and a second strip group is disposed in the sliding component. The second strip group includes two strips, and the two strips of the second strip group are electrically coupled to the two strips of the first strip group respectively.

Phase shifter and antenna

A phase shifter, an antenna, and a base station are provided. The phase shifter in the present invention includes a feed unit, a tapping element, a conductor section, and a ground element, and the feed unit is electrically connected to the tapping element. The tapping element is electrically connected to the ground element when being shifted by a preset angle by using a port of the conductor section as a start position, so that a transmit signal is reflected to an input port of the feed unit, and whether a cable is correctly connected is determined according to the signal of the input port, thereby signal transmission accuracy of an antenna is ensured.

Phase shifter, antenna, and base station

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.

Antenna system

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.

Cable for coupling a coaxial line to a strip-line including a coupling ground plane for reducing passive intermodulation interference in the cable

The present invention provides a base station antenna, including power dividers, network calibration modules, and connectors. The base station antenna further includes at least two phase shifters. At least one phase shifter is integrated with a combiner, the connectors are connected to the network calibration modules, and the network calibration modules are connected to the phase shifters. The one phase shifter integrated with the combiner is connected to the power divider, and at least one output port of the at least one other phase shifter is connected to the phase shifter integrated with the combiner. The base station antenna has an integrated design of phase shifters and combiners, which allows cables in different bands to be shared, reduces a quantity of used cables, is easy to implement in an actual layout and production, facilitates the layout and heat dissipation on the whole, satisfies user requirements, and reduces costs.

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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Shenzhen, China

Zhiqiang Liao