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A multi-antenna array and arrangement design method for mimo system

A technology of array arrangement and design method, which is applied to antenna arrays, devices for manufacturing antenna arrays, antennas, etc., can solve problems such as difficulty in designing multi-antenna arrangement schemes, and achieve the effect of increasing distance and reducing volume

Active Publication Date: 2021-05-14
SHANGHAI TAOLINK TECHNOLOGIES CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the design of the multi-antenna arrangement scheme needs to consider the space occupied by the antenna array and the distance between the antennas, so the design of the multi-antenna arrangement scheme is a difficult problem

Method used

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  • A multi-antenna array and arrangement design method for mimo system
  • A multi-antenna array and arrangement design method for mimo system
  • A multi-antenna array and arrangement design method for mimo system

Examples

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Embodiment 1

[0033] Embodiment 1, as figure 1 As shown, the virtual surface is a square, and the virtual carrier is a cuboid 9. In this scheme, the number of antennas M=8, which are antennas 1, 2, 3, 4, 5, 6, 7, and 8, and the arrangement of the antennas is a cuboid 9 The design of cuboid 9 is a, a, b, and a is the side length of the section of cuboid 9, b is the height of cuboid 9, and h is the height of the antenna. The arrangement scheme of the antenna is that four antennas 2, 4, 6, 8 are arranged at the four vertices above the cuboid 9, and the other four antennas 1, 3, 5, 7 are arranged at the midpoints of the four sides below the cuboid 9. So where d 12 Represents the distance between the center point of antenna 1 and the center point of antenna 2, d 23 Represents the distance between the center point of antenna 2 and the center point of antenna 3, d 13 Represents the distance between the center point of antenna 1 and the center point of antenna 3. Then need to satisfy d 12 ...

Embodiment 2

[0035] Example 2, such as figure 2 As shown, in this embodiment, the virtual carrier is a cylinder 10, the number of antennas M=8, which are antennas 1, 2, 3, 4, 5, 6, 7, and 8 respectively, and the arrangement scheme of the antennas adopts the design of the cylinder 10, The parameters of the cylinder 10 are r, b, where r is the radius of the cylinder 10, b is the height of the cylinder 10, and h is the height of the antenna. The arrangement scheme of the antenna is that four antennas 2, 4, 6, and 8 are evenly arranged on the edge of the upper bottom surface of the cylinder 10, and the other four antennas 1, 3, 5, and 7 are evenly arranged on the edge of the lower bottom surface of the cylinder 10 , the antennas on the upper bottom surface and the antennas on the lower bottom surface are arranged alternately. So where x can be obtained according to the law of cosines, namely where y can be obtained according to the law of cosines, namely where d 12 Represents the dist...

Embodiment 3

[0037] Example 3, such as image 3 As shown, in this embodiment, the virtual carrier adopts a regular octagonal prism 11, the number of antennas M=8, which are respectively antennas 1, 2, 3, 4, 5, 6, 7, and 8, and the arrangement scheme of the antennas adopts the design of a regular octagonal prism 11, The parameters of the regular octagonal prism 11 are a, b, where a is the side length of the regular octagonal prism 11, b is the height of the regular octagonal prism 11, and h is the height of the antenna. The arrangement scheme of the antenna is that four antennas 2, 4, 6, and 8 are evenly arranged on eight sides of the upper bottom surface of the regular octagonal prism 11, and the other four antennas 1, 3, 5, and 7 are evenly arranged on the eight sides of the lower bottom surface of the regular octagonal prism 11. On the side, the antennas on the upper bottom surface and the antennas on the lower bottom surface are arranged alternately. So in in where d 12 Represen...

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Abstract

The invention discloses a multi-antenna array and arrangement design method for a MIMO system. The multi-antennas are divided into two groups and distributed interleavedly. Firstly, a virtual carrier is defined. The virtual carrier specifically has two parallel virtual surfaces with the same shape. The multiple antennas described above are divided into two groups, one group of antennas is installed vertically around one virtual plane, and the other group of antennas is vertically installed around another virtual plane. The two groups of antennas are installed parallel to each other and in opposite directions. Evenly spaced staggered distribution on the orthographic projection of the surface, the distance d between the center points of every two antennas must be greater than or equal to the threshold S through the selection of the size of the virtual surface. The present invention can reduce the overall size of the equipment as much as possible, and realize the integrated chassis and antenna array design, or can increase the distance between the upper and lower antennas by increasing the thickness of the circuit board and the chassis in the chassis.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a multi-antenna array and an arrangement design method for a MIMO system. Background technique [0002] Multi-terminal transmission and base station multi-antenna reception are a typical MIMO communication system, where MIMO refers to a multiple-input multiple-output antenna system. An important feature of the MIMO system is multiple antennas. Due to the large number of antennas, the size of the antenna array that meets the antenna spacing requirements may be relatively large. The base station in the massive MIMO system is equipped with a large number of antennas. The antenna density is too high, and the antennas are too close to each other, which will easily cause the transmission channel to be correlated and reduce the channel capacity. Taking a linear antenna array as an example, when the antenna spacing is less than half a wavelength, the ability of a large-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q21/00
CPCH01Q1/36H01Q21/00H01Q21/0087
Inventor 屈代明张皓陈瑞汪志冰何辉
Owner SHANGHAI TAOLINK TECHNOLOGIES CORPORATION