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A mimo array antenna and its processing method

A technology of an array antenna and a processing method, which is applied in directions such as antennas, slot antennas, and antenna coupling, can solve the problems such as the dual-polarization MIMO array antennas with no proposed broadband and dual-polarization MIMO array isolation, and achieve high bandwidth and high channel. The effect of small capacity and array element interval

Active Publication Date: 2022-06-24
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: no method and corresponding dual-polarization MIMO array antenna have been proposed to improve the isolation of broadband and dual-polarization MIMO arrays, and the purpose is to provide a dual-polarization MIMO array with high isolation The processing method of the antenna and the dual-polarized MIMO antenna with high isolation solve the problem that the existing technology cannot simultaneously improve the broadband and realize the high isolation of the dual-polarized MIMO antenna

Method used

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  • A mimo array antenna and its processing method
  • A mimo array antenna and its processing method
  • A mimo array antenna and its processing method

Examples

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Embodiment 1

[0043] figure 1 This is a top view of the structure of a MIMO array antenna according to Embodiment 1 of the present invention. As shown in the figure, the MIMO array antenna includes two cavity-backed slot antennas 1 arranged side-by-side, because the two cavity-backed slot antennas 1 have the structural features of compact structure, easy processing, easy embedding, etc. only 1 mm (equivalent to 0.031λ) g ), so this side-by-side arrangement greatly reduces the spacing between the array elements, making the overall volume of the dual-polarized MIMO array antenna smaller.

[0044] like figure 2 As shown, there is a cross-shaped slot 3 on the metal wall above the resonant cavity of each cavity-backed slot antenna, and the cross-shaped slot 3 makes the cavity-backed slot antenna 1 have dual polarization characteristics.

[0045] The isolation medium 2 covers the top of the two cavity-backed slot antennas arranged side by side, and is used for isolating electromagnetic waves....

Embodiment 2

[0051] Figure 7 This is a flowchart of a method for a MIMO array antenna according to Embodiment 2 of the present invention. As shown in the figure, the steps of the processing method of the MIMO array antenna are as follows:

[0052] First, two cavity-backed slot antennas are selected as the radiating elements of the MIMO array antenna. The cavity-backed slot antenna is selected as the radiation unit of the MIMO array antenna, and the purpose is that the cavity-backed slot antenna has the structural characteristics of compact structure, easy processing, and easy embedding, so that the overall structure of the MIMO array antenna is simple and easy to implement; and The cavity-backed slot antenna can improve the working bandwidth of the MIMO array antenna.

[0053] Then, a cross-shaped slot is etched on the metal wall above the resonant cavity of the two cavity-backed slot antennas. The purpose of etching the cross-shaped slot is to make the cavity-backed slot antenna have ...

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Abstract

The invention discloses a dual-polarized MIMO array antenna with high isolation and a processing method. Among them, the dual-polarized MIMO array antenna selects a cavity-backed slot antenna, including a dual-polarized cavity-backed slot antenna and multiple dielectric blocks, and arranges multiple dual-polarized cavity-backed slot antennas side by side, combining Become a dual-polarized MIMO array antenna. Compared with the existing methods for improving the isolation of array antennas, the invention has higher bandwidth, can be used in more scenarios, has higher channel capacity than single-polarization arrays, and has a simple structure and small volume. The processing method comprises the following steps: performing preprocessing on the cavity-backed slot antenna; arranging and combining a plurality of the dual-polarized cavity-backed slot antennas into a dual-polarized MIMO array antenna; Increasing isolation media includes multiple antennas and dielectric blocks.

Description

technical field [0001] The invention relates to the technical field of antenna engineering, in particular to a MIMO array antenna and a processing method thereof. Background technique [0002] The MIMO system is represented as a multiple-input multiple-output communication system. The MIMO array antenna is an array formed by multiple antennas arranged in a certain way. Its function is to transmit and receive data using multiple spatial channels without increasing the bandwidth of the communication system. , which doubles the capacity and spectrum utilization of the communication system, and has a wide application prospect in the modern new communication system. [0003] However, in the MIMO array antenna, there is usually strong mutual coupling between the antenna elements, which leads to a high correlation coefficient between each channel. In response to this situation, in recent years, various MIMO array element antenna decoupling methods have emerged, which are mainly di...

Claims

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Application Information

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IPC IPC(8): H01Q1/52H01Q21/00H01Q13/10H01Q15/24
CPCH01Q1/523H01Q21/00H01Q13/10H01Q15/24
Inventor 王平陈锡炼
Owner CHONGQING UNIV OF POSTS & TELECOMM
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