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A compact 5g mobile terminal mimo antenna

A mobile terminal, compact technology, applied in the direction of antenna, antenna coupling, antenna array, etc., can solve the problem of few modes, and achieve the effect of small unit spacing and compact antenna structure

Active Publication Date: 2020-11-10
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are relatively few modes available for mobile terminals, and currently reported closely placed MIMO antennas only have two elements
This approach is no longer suitable when multiple antenna elements need to be placed close together

Method used

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  • A compact 5g mobile terminal mimo antenna
  • A compact 5g mobile terminal mimo antenna
  • A compact 5g mobile terminal mimo antenna

Examples

Experimental program
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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0032] As a preferred embodiment of the present invention, the three-dimensional structural diagram of the MIMO antenna described in the present invention is as follows figure 1 shown. This embodiment includes an antenna unit one 1 , an antenna unit two 2 , an antenna unit three 3 , an antenna unit four 4 , a decoupling element 5 , a decoupling element 6 , a decoupling element 7 and a system floor 8 .

[0033] Antenna unit one 1, antenna unit two 2, antenna unit three 3 and antenna unit four 4 are sequentially printed on the same dielectric board and located on the same side of the dielectric board. The dielectric plate is a low-cost FR4 plate with a thickness of 0.8mm, a relative dielectric constant of 4.4, and a loss tangent of 0.02. The size of the system floor 8 is 140×70mm2, which is the current mainstream mobile phone size. The plane ...

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Abstract

The invention relates to a compact-type 5G mobile terminal MIMO antenna, and is suitable for the field of mobile communication. The antenna comprises four antenna units, three decoupling elements anda system floor plate. The four antenna units are linearly arranged together and are vertically placed at the edge of the system floor plate. The distance between the adjacent antenna units is only 0.01 wavelength, and a lumped element is bridged. The impedance of each antenna unit is matched by adjusting the position of a short circuit point and the position of a feed point. The coupling between two adjacent antenna units is decoupled through an introduced lumped inductor or capacitor element. According to the invention, a lumped element decoupling method is utilized to solve the problem of strong coupling of the antenna units due to extremely small spacing, and the decoupling of four compact antenna units is realized.

Description

technical field [0001] The invention belongs to the antenna design field of wireless communication technology, and in particular relates to a compact 5G mobile terminal MIMO antenna. Background technique [0002] The fifth generation (5G) mobile communication technology can provide services such as high transmission rate, high access density and low latency. In order to achieve the goal of 5G mobile communication, MIMO technology is currently recognized as the key technology with the greatest potential to double the wireless channel capacity. At the World Wireless Communications Conference in 2015, the 3.5GHz frequency band (3400-3600MHz) was designated as one of the important commercial frequency bands for future 5G mobile communications. It is of great significance to develop mobile terminal MIMO antennas working in the 3.5GHz frequency band. [0003] However, due to the small size of mobile terminals, the space available for antennas is quite limited. Integrating multi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/52H01Q1/38H01Q1/48H01Q1/50H01Q21/00
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/521H01Q21/00
Inventor 邓长江吕昕
Owner BEIJING INSTITUTE OF TECHNOLOGYGY