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High-isolation MIMO antenna of complementary semicircular structure

A high isolation, semi-circular technology, applied in the field of wireless communication, can solve problems such as limited space

Inactive Publication Date: 2019-03-19
YULIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order for a MIMO system to have good performance, the antenna elements must be uncorrelated (lower coupling), however, the space that can be reserved for antennas in mobile devices is very limited, making the spatial distance between antennas impossible Greater than or equal to a wavelength

Method used

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  • High-isolation MIMO antenna of complementary semicircular structure
  • High-isolation MIMO antenna of complementary semicircular structure
  • High-isolation MIMO antenna of complementary semicircular structure

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings. What is done is to explain the technical solution rather than limit it. Position qualifiers such as "right" are only relative positions adopted for the convenience of description, and cannot be understood as limitations on the technical solution:

[0029] like figure 1 , figure 2 , image 3Shown is a high-isolation MIMO antenna with a complementary semicircular structure of the present invention, including a dielectric substrate 3, which is rectangular and made of FR-4 epoxy glass cloth laminate with a dielectric constant of 4.4. The first antenna unit and the second antenna unit are printed on the dielectric substrate 3; The edges of two adjacent sides; the first antenna unit includes the first semicircular radiation patch 1-1, the first feeding microstrip line 1-2 and the first ground plate 1-3; the second antenna unit includes the first Two semicircular...

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Abstract

The invention relates to a high-isolation MIMO antenna of a complementary semicircular structure and belongs to the technical field of wireless communication. The antenna includes a first antenna unitand a second antenna unit disposed orthogonally on a dielectric substrate; each of the two antenna units is composed of a semicircular metal patch and a rectangular metal patch; with a polarization diversity technology adopted, coupling between the two antenna units is very small, so that high port isolation is realized; a distance between the two antenna unit is smaller than one wavelength, so that the size of the MIMO system composed of the two antenna units is significantly reduced, and the effect of miniaturization is achieved. Many working frequencies of an intelligent terminal are included in the frequency band of the antenna of the present invention, and therefore, the same antenna can be used to perform a plurality of functions, the number of antennas in the intelligent terminal can be finally reduced, and the performance of the antenna can be improved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a high-isolation MIMO antenna with a complementary semicircular structure. Background technique [0002] Mobile communication is one of the fastest-growing fields today. Mobile communication has undergone several generations of changes, providing people with unprecedented high efficiency and convenience from mobile phones and the Internet. Especially in the field of mobile communication, the emergence of electromagnetic waves has realized The rapid development from wired communication to wireless communication, and the current multimedia communication has realized the transmission of comprehensive business data such as single voice data to integrated images, data, and audio. In recent years, with more and more end users and wireless data communication services, the communication system provides wider frequency band bandwidth and higher rate data communi...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q21/00H01Q21/24
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/521H01Q21/0075H01Q21/24
Inventor 李海雄刘汉烨崔娟娟
Owner YULIN UNIV
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