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Compact type high isolation MIMO antenna

A high-isolation, compact technology, applied in the radio frequency field, can solve the problems of large antenna system, large electronic equipment, unfavorable miniaturization design of mobile terminals, etc.

Pending Publication Date: 2017-02-01
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this will lead to a larger volume of the antenna system, which is not conducive to the miniaturization design of mobile terminals
Especially in devices with small size, such as mobile phones and other devices, if the antenna is too large, the size of the electronic device will be large

Method used

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] The core of the present invention is to provide a compact high-isolation MIMO antenna, which is used to improve the isolation of the MIMO antenna and reduce the volume of the antenna.

[0021] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022]...

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Abstract

The invention discloses a compact type high isolation MIMO antenna comprising a PCB board, a first antenna unit, a second antenna unit and a floor shared by the first antenna unit and the second antenna unit, wherein the first antenna unit and the second antenna unit are respectively arranged on two faces of the PCB board, the floor is placed on the PCB board, the first antenna unit comprises a first antenna and a first microstrip line connected with the first antenna, the second antenna unit comprises a second antenna and a second microstrip line connected with the second antenna, and arrangement positions of the first antenna and the second antenna form a polarization diversity and a directional diagram diversity. Therefore, the first antenna unit and the second antenna unit are respectively arranged on a front face and a back face of the PCB board, high isolation is realized via the first antenna unit and the second antenna unit through the polarization diversity and the directional diagram diversity, and isolation can be realized in a polarization direction and a radiation direction. Because isolation is realized by the antenna via the polarization diversity and the directional diagram diversity, increase of antenna dimension is not needed, and antenna size can be correspondingly reduced.

Description

technical field [0001] The invention relates to the field of radio frequency technology, in particular to a compact high-isolation MIMO antenna. Background technique [0002] MIMO technology is a multiple-input multiple-output antenna technology developed on the basis of a single antenna unit. This technology can significantly improve the transmission rate and stability of the antenna system. It is a new direction for the development of current wireless communication technology. Since the MIMO antenna is a multiple-input multiple-output antenna, the isolation between the antennas is very important. Isolation is a very important indicator in the MIMO technology. In order to improve the isolation of the antenna system, in the prior art, a higher isolation is achieved mainly by increasing the distance between antenna elements. However, this will lead to a large volume of the antenna system, which is not conducive to the miniaturization design of the mobile terminal. Especiall...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/52
CPCH01Q1/38H01Q1/521Y02D30/70
Inventor 吴艳杰谭富文吴多龙李健凤田欣欣张勇黄贝
Owner GUANGDONG UNIV OF TECH
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