Beam forming network and dual-polarized five-beam antenna

Abstract

The invention provides a beam forming network and a dual-polarized five-beam antenna. The beam forming network comprises a first network, a second network and a third network connected in sequence, wherein the first network is provided with five signal input ports, and one path of signals can provide two paths of signal inputs for the second network from each signal input port; the second network comprises two three-input four-output matrix network, every two paths of signals provided by the first network are respectively input to the second network from respective one input port of the two matrix networks, and are subjected to coupling and phase modulation of the second network to output eight paths of signals with phase difference; the third network is used for performing power dividing and combination on six of the eight paths of signals output by the second network to form at least ten paths of signals with phase difference. The beam forming network with five input ports and at least ten output ports can be formed, so that different phase configurations are formed at different output ports when signals are input at different input ports, and five different beam directions are formed.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a beamforming network and a dual-polarized five-beam antenna applying the beamforming network. Background technique [0002] At present, technology in the field of mobile communication is developing rapidly, and user traffic continues to blow out. A large number of data services put forward higher requirements for mobile communication capacity. Usually, a mobile communication base station antenna uses a wider beam to cover a sector. When the number of users in the sector increases, problems such as enhanced signal interference and insufficient capacity coverage will be brought about. The multi-beam antenna can be understood as "split" a wider beam into multiple narrower beams, which provides a reliable solution for system capacity expansion at the antenna feeder end. [0003] Using Butler matrix to form multiple beams is one of the main means of multi-beam antenna d...

AI Technical Summary

Problems solved by technology

However, the existing Butler matrix has defects such as complex design, large size, and poor production consistency.

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