Dual-polarization MIMO (Multiple Input Multiple Output) antenna array

A technology of dual-polarized antennas and antenna arrays, applied in antenna arrays, antennas, antenna coupling, etc., can solve problems such as lack of high-performance MIMO antennas, inability to meet miniaturization and multi-functionality, and poor impedance of antenna units, so as to achieve extreme improvement Diversity effects, improved space diversity, and improved isolation

Active Publication Date: 2015-07-22
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the more antennas are integrated in a limited space, the more difficult it will be to obtain impedance bandwidth
In order to improve the performance of the MIMO antenna, the number of antenna elements is increased. Although the obtained MIMO antenna has excellent performance, it takes up a lot of space, the isolation of the antenna array is low, and the bandwidth is relatively narrow.
Unable to meet the needs of miniaturized and multifunctional mobile devices
In the existing floor multi-element MIMO antenna structure, although the impedance bandwidth of a single antenna element is very wide, after all elements are integrated into a MIMO antenna array with multiple antenna elements, the impedance of the antenna elements becomes worse due to the mutual coupling between each antenna element
[0010] In short, there is currently no high-performance MIMO antenna suitable for wireless communication mobile terminals.

Method used

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  • Dual-polarization MIMO (Multiple Input Multiple Output) antenna array

Examples

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Effect test

Embodiment 1

[0039] The embodiment of the dual-polarization MIMO antenna array Figures 1 to 3 As shown, it includes 2 identical dual-polarized antenna units A and B (one antenna unit is framed by a dotted line in the figure), each dual-polarized antenna unit A or B is a stacked square, and 2 dual-polarized antennas Units A and B are placed on the same horizontal plane, and the two opposite sides of the square of one dual-polarized antenna unit A are on the same straight line as the corresponding sides of the square of the other dual-polarized antenna unit B, that is, two dipolar The square of the polarized antenna unit A is located at both ends of the same rectangle, and the length of the shorter side of the rectangle is equal to the side length of the square of the dual-polarized antenna unit. In this example, the distance L between adjacent sides of two dual-polarized antenna unit squares is 5mm. In this example, the two dual-polarized antenna units A and B are placed in the same direc...

Embodiment 2

[0048] The implementation structure of this dual-polarized MIMO antenna array is basically the same as that of Embodiment 1. In this example, the placement directions of two dual-polarized antenna units A and B are as follows: Figure 7 As shown, one of the microstrip feeders 3 of A is on the left side of its square, and the other is under its square, and one of the microstrip feeder lines 3 of B is on the right side of its square, and the other is under its square.

Embodiment 3

[0050] The structure of this embodiment of the dual-polarized MIMO antenna array is basically the same as that of Embodiment 1. In this example, the placement directions of the two dual-polarized antenna units A and B are as follows: Figure 8 As shown, one of the microstrip feeders 3 of A is on the left side of its square, and the other is below its square, and one of the microstrip feeder lines 3 of B is on the right side of its square, and the other is above its square.

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Abstract

The invention relates to a dual-polarization MIMO (Multiple Input Multiple Output) antenna array comprising two same dual-polarization antenna units. Each antenna unit is as follows: a first square dielectric slab, a second dielectric slab and a grounding plate are overlapped and stacked, a metal radiation patch is arranged on the upper surface of each antenna unit, two micro-strip feeder lines vertical to each other are arranged between the two dielectric plate and are respectively positioned on a middle of two adjacent sides of a square. The two antenna units are arranged on the same horizontal plane, the two opposite sides of the square of one antenna unit and the corresponding sides of the other square are arranged on the same straight line, namely, the squares of the two antenna units are positioned on the two sides of the same rectangle. The distance between the adjacent sides of the squares of the two antenna units is 0.1-100mm. The two antenna units are separated by air or insulated plastic foam. Convex rectangles are formed on the four sides of the metal radiation paster. Symmetrical cross-shaped slots are arranged on the grounding plate. According to the dual-polarization MIMO antenna array, the high performance of the antenna array is ensured, the miniaturization and the high-radiation performance are realized, the impedance bandwidth is improved, and the distance between the antenna units is adjusted, namely, the isolation is adjusted.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a dual-polarized MIMO antenna array with two antenna units. Background technique [0002] With the development of high-speed wireless communication towards broadband and multi-function, the problem of insufficient spectrum resources has become increasingly prominent. How to fully develop and utilize limited spectrum resources and improve spectrum utilization is a hot topic in the current communication field. In order to improve spectrum utilization in a limited frequency band and achieve higher data transmission rates, MIMO technology, that is, multiple-input multiple-output technology, has emerged. MIMO technology uses multiple antennas to transmit and receive at both the transmitting end and the receiving end, which doubles the capacity and spectrum utilization of the communication system without increasing the system bandwidth. It can also improve the reliability of the chan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/52H01Q1/48H01Q21/00
Inventor 肖海林易钊欧阳缮胡振
Owner GUILIN UNIV OF ELECTRONIC TECH
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