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Beamforming networks, subantenna arrays, and dual beam antennas for railway systems

A sub-antenna and linear array technology, applied in the field of wireless communication, can solve problems such as weak coverage, achieve the effects of improving utilization, avoiding over-area coverage, and reducing the number of antennas

Pending Publication Date: 2018-12-21
CHINA UNITED NETWORK COMM GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The primary purpose of the present invention is to address the deficiencies in the prior art and to provide a beamforming network that provides strong support for signal coverage in narrow and long scenarios such as straight lines, and solves problems of weak coverage and cross-area coverage.

Method used

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  • Beamforming networks, subantenna arrays, and dual beam antennas for railway systems
  • Beamforming networks, subantenna arrays, and dual beam antennas for railway systems
  • Beamforming networks, subantenna arrays, and dual beam antennas for railway systems

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Embodiment Construction

[0028] The present invention will be further described below with reference to the accompanying drawings and exemplary embodiments, in which the same reference numerals in the accompanying drawings all refer to the same components. In addition, if a detailed description of the known technology is unnecessary to show the features of the present invention, it will be omitted.

[0029] Such as Figure 3 to Figure 6 As shown, the present invention provides a beamforming network that provides strong support for realizing signal coverage in narrow and long scenarios such as straight lines and solving the problems of weak coverage and cross-area coverage.

[0030] image 3 The beamforming network 101 of the first embodiment of the present invention is shown. For this embodiment, the beamforming network 101 has two input ports and four output ports. The two input ports are the first input port IN1 and the second input port IN2, respectively, and the four output ports are the first input p...

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Abstract

The invention relates to the technical field of wireless communication, and discloses a beamforming network, which adopts a sub-antenna array of the beamforming network and a dual-beam antenna for a railway system. The beamforming network having two input ports and a plurality of output ports, The invention comprises a Butler matrix having two inputs and a plurality of outputs, the input ports ofthe beamforming network, the output ports and the input terminals of the Butler matrix, the output terminals are one-to-one correspondingly connected, wherein a gain control module is arranged betweenone of the input ports and the input terminals correspondingly connected. The gain control module realizes the decreasing amplitude regulation of the input port of the input terminal of the Butler matrix corresponding to the beam forming network, Further, the gain of the two directional beams generated by the sub-antenna array of the beam forming network and the dual-beam antenna used in the railway system are different, so that the high-gain beam covers the long-range narrow area and the low-gain beam supplements cover the short-range weak-coverage blind area.

Description

Technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a beam forming network, and a sub-antenna array adopting the beam forming network and a dual beam antenna used in a railway system. Background technique [0002] With the continuous improvement of the high-speed rail transportation network, railways have become one of the indispensable ways for people to travel, and how to meet people's communication needs when riding railway vehicles has also become one of the important problems to be solved by wireless communication technology. Currently, for high-speed rail and other narrow and long area scenarios, narrow-beam high-gain antennas are generally used to solve the coverage problem. Such as figure 1 As shown, when the distance between the site of the antenna base station and the high-speed rail is close enough, the two narrow-beam high-gain antennas are back to back and cover both sides of the track to meet the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q23/00H01Q21/00H01Q3/40
CPCH01Q3/40H01Q21/00H01Q23/00
Inventor 王波邱涛林学进冯毅张涛栾帅贾飞飞陈强袁斌
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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