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3*3 Butler matrix and 5*6 Butler matrix

A matrix, directional coupler technology, applied in electrical components, antennas, etc., can solve the problems of narrow frequency band, high loss, large size, etc., and achieve the effect of small size, wide frequency band, and small loss

Active Publication Date: 2013-11-27
GUANGDONG BROADRADIO COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the size of the Butler (Butler) matrix in the prior art is large, the frequency band is narrow, and it has high loss, which needs to be further improved

Method used

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  • 3*3 Butler matrix and 5*6 Butler matrix
  • 3*3 Butler matrix and 5*6 Butler matrix
  • 3*3 Butler matrix and 5*6 Butler matrix

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Please refer to figure 1 and figure 2 , a 3×3 Butler matrix provided by the embodiment of the present invention consists of a first directional coupler 1, a second directional coupler 2, a third directional coupler 3, a first fixed phase shifter 4, a second fixed phase shifter 5 and the third fixed phase shifter 6; wherein, each directional coupler has two input ends and two output ends, respectively the first input end, the second input end, the first output end and The second output terminal: the 3×3 Butler matrix has 3 signal input ports, which are respectively the first input port in1, the second input port in2 and the third input port in3, and has 3 output ports, which are respectively the first output port out1, the second output port out2 and the third output port out3.

[0040] The connection relationship of each part in the embodiment of the present invention is as follows figure 1As shown, the second input terminal 2b of the second directional coupler 2 is...

Embodiment 2

[0056] Please refer to Figure 6 and Figure 7 , a 5×6 Butler matrix provided by an embodiment of the present invention consists of a fourth directional coupler 1, a fifth directional coupler 2, a power splitter 3, a first 3×3 Butler matrix 4, a second 3×3 Butler matrix 5, a Four fixed phase shifters 6 and the fifth fixed phase shifter 7 are composed; wherein, each directional coupler has two input terminals and two output terminals, which are respectively the first input terminal, the second input terminal and the first output terminal and the second output terminal; the 5×6 Butler matrix has 5 signal input ports, which are respectively the first input port in1, the second input port in2, the third input port in3, the fourth input port in4, and the fifth input port The port in5 has 6 output ports, which are the first output port out1, the second output port out2, the third output port out3, the fourth output port out4, the fifth output port out5, and the sixth output port ou...

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PUM

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Abstract

The invention relates to a 3*3 Butler matrix. The 3*3 Butler matrix includes a first directional coupler, a second directional coupler, a third directional coupler, a first fixed phase shifter, a second fixed phase shifter and a third fixed phase shifter. The invention also relates to a 5*6 Butler matrix. The 5*6 Butler matrix includes a first 3*3 Butler matrix, a second 3*3 Butler matrix, a fourth directional coupler, a fifth directional coupler, a power divider, a fourth fixed phase shifter and a fifth fixed phase shifter. The 3*3 Butler matrix and the 5*6 Butler matrix provided by the present invention are advantageous in small size, wide frequency band, low loss, high isolation and stable performance, bright application prospect and great value. With the 3*3 Butler matrix and the 5*6 Butler matrix adopted, blank in specific technical schemes can be filled.

Description

technical field [0001] The present invention relates to the technical field of microwave passive devices, and more specifically relates to a 3*3 Butler matrix and a 5*6 Butler matrix used in a beamforming network. Background technique [0002] With the rapid development of mobile communication technology and the sharp increase of mobile communication traffic, it is facing problems such as strong signal interference between communication cells, insufficient spectrum capacity and narrow signal coverage. Multi-beam antennas can simultaneously generate the pattern characteristics of multiple beams, which can increase network capacity; in addition, multi-beam antennas can easily achieve narrow beams and high gain, which can reduce signal interference and increase coverage distance. Therefore, multi-beam antennas have broad application prospects and value. [0003] Among them, the Butler (Butler) matrix is ​​an important part of the multi-beam antenna and a key component for gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q3/40
Inventor 吴壁群
Owner GUANGDONG BROADRADIO COMM TECH
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