Huawei Technologies Co., Limited

Yang Geng

Jianping Zhao

Qingming Xie

Long Li

Guanxi Zhang

Rui Shi

Guoliang Cao

An antenna unit and an antenna array. The antenna unit includes M layers of cross metal patches, M layers of dielectric substrates, and a metal ground layer, where M is an integer greater than 1. In addition, an i-layer dielectric substrate is disposed between an i-layer cross metal patch and an (i+1)-layer cross metal patch. The i-layer cross metal patch, the i-layer dielectric substrate, and the (i+1)-layer cross metal patch are sequentially stacked, and i is an integer ranging from 1 to M&#x2212;1. An M-layer cross metal patch, an M-layer dielectric substrate, and the metal ground layer are sequentially stacked. The antenna unit and the antenna array formed by units may have a good polarization feature, a relatively wide operating bandwidth, and a relatively good phase shift feature.

Antenna unit and antenna array

An antenna system is disclosed. The system includes: N radio frequency channels, configured to send a radio frequency signal to drive one or two columns of M columns of antennas, and N&#x3c;M&#x2264;2N; the M columns of antennas, configured to receive radio frequency signals, where only one column of two columns of antennas driven on a same radio frequency channel are connected to one of the M&#x2212;N phase shifters, and is also connected to one of the M&#x2212;N power splitters; the M&#x2212;N power splitters, where any of the M&#x2212;N power splitters is configured to split power for the two columns of antennas connected to the radio frequency channel; and the M&#x2212;N phase shifters, where any of the M&#x2212;N phase shifters is configured to adjust a phase of a radio frequency signal received by an antenna connected to the phase shifter.

Antenna system, signal processing system, and signal processing method

Embodiments of the present invention provide a beam forming network, including: a first 180-degree bridge for equal-power division, a 180-degree bridge for unequal-power division, a 90-degree phase shifter, and a second 180-degree bridge for equal-power division. A coupling port of a sum input port of the first 180-degree bridge for equal-power division is connected to a difference input port of the 180-degree bridge for unequal-power division, a straight-through port of the sum input port of the first 180-degree bridge for equal-power division is connected to an input port of the 90-degree phase shifter, an output port of the 90-degree phase shifter is connected to a difference input port of the second 180-degree bridge for equal-power division, and a straight-through port of a sum input port of the 180-degree bridge for unequal-power division is connected to a sum input port of the second 180-degree bridge for equal-power division.

Beam forming network and base station antenna

Embodiments of the present invention disclose an interleaved polarized multi-beam antenna, including: at least one dual-polarized antenna element, where the dual-polarized antenna element includes a +45-degree-polarized first antenna element and a &#x2212;45-degree-polarized second antenna element; and a first Butler matrix and a second Butler matrix, where the first Butler matrix is connected to the first antenna element so that the first antenna element transmits a first target beam, and the second Butler matrix is connected to the second antenna element so that the second antenna element transmits a second target beam. The first target beam and the second target beam in the embodiments are alternately arranged, and any two adjacent first target beam and second target beam have different polarization characteristics; therefore, complexity, a loss, and costs of implementation of a Butler matrix can be effectively reduced, and interference between adjacent multiplexed beams can be effectively decreased.

Growing community of inventors

Shanghai, China

Yang Geng