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5G base station full duplex ultrahigh isolation dual polarization MIMO antenna array

An antenna array and full-duplex technology, which is applied in the direction of antenna arrays, antenna arrays powered separately, antennas, etc., to achieve the effect of increasing beam width, high gain, and reducing impact

Active Publication Date: 2021-02-19
杭州泛利科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if full-duplex communication can be effectively applied, even if the transceiver transmits and receives signals simultaneously on the same frequency resource, it will be possible to theoretically achieve twice the spectral efficiency of the half-duplex system

Method used

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  • 5G base station full duplex ultrahigh isolation dual polarization MIMO antenna array
  • 5G base station full duplex ultrahigh isolation dual polarization MIMO antenna array
  • 5G base station full duplex ultrahigh isolation dual polarization MIMO antenna array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Such as Figure 10 The full-duplex ultra-high isolation broadband dual-polarization MIMO antenna array of the 5G base station shown is as follows: Figure 9 The antenna unit system (10) is shown in a 1*2 one-dimensional parallel compact distribution, and the antenna unit system (10) is fixed by a supporting ground plate 02.

[0060] Such as Image 6 Each antenna unit system (10) includes a filter structure 1, a phase shifter 2, and an antenna unit 3 from bottom to top, the first input port P1 and the second input port P2 of the filter structure 1 are connected to the external port of the antenna, and the filter structure 1 The third output port P3 is connected to the fifth input port P51 of the first phase shifter 2 through a coaxial cable, the two differential ports of the first phase shifter 2, the fifth positive output port P51+ and the fifth negative output port P51- The sixth positive input port P6+ and the sixth negative input port P6- of the antenna unit are re...

Embodiment 2

[0080] This implementation example provides a 16T16R 5G base station full-duplex ultra-high isolation broadband dual-polarization MIMO antenna array with 4*4 units. Its structure is as follows Figure 10 As shown, Embodiment 2 performs two-dimensional extension on the basis of the MIMO antenna described in Embodiment 1. Two-dimensional expansion of the number of other elements can also be performed based on the MIMO antenna described in Example 1, for example, a 64T64R array with 2*4 or 8*8 elements.

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PUM

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Abstract

The invention discloses a 5G base station full duplex ultrahigh isolation dual polarization MIMO antenna array. By adding the metamaterial isolation wall, the interference of antenna radiation on adjacent antenna units can be effectively blocked, and the port isolation between the units is improved. By adding the second layer of supporting grounding plate, coupling between the antenna units is reduced, in addition, defected ground slots are added to the supporting grounding plate, the influence of surface current on the adjacent antenna units is reduced, and the port isolation between the units is effectively improved. According to the invention, the filtering structure is added at the feed position, so that the mutual influence of two polarization ports in the antenna unit is effectivelyreduced, and the isolation degree of the ports in the unit is improved. Through the differential feed structure, the interference of ports in the unit can be cancelled out, the mutual influence of twopolarization ports in the antenna unit is effectively reduced, and the isolation degree of the ports in the unit is improved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a full-duplex high-isolation MIMO base station antenna. Background technique [0002] As a key technology of 5G communication system with great potential, massive MIMO antenna has received extensive attention in recent years. The main idea of ​​massive MIMO technology is to configure a large-scale antenna array at the base station, so that the number of antennas at the base station in each cell is much greater than the sum of the number of antennas at the user end. A large number of base station antennas can bring many benefits to the system, including higher spectral efficiency and energy efficiency, asymptotically optimal properties of simple linear signal processing techniques, and asymptotic cancellation properties of uncorrelated interference and noise, etc. [0003] Full-duplex transmission is another potential 5G key technology. Half-duplex transmission such as time-div...

Claims

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Application Information

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IPC IPC(8): H01Q1/52H01Q1/38H01Q1/48H01Q1/50H01Q15/00H01Q21/00H01Q21/06
CPCH01Q1/523H01Q15/0086H01Q1/48H01Q1/50H01Q21/0006H01Q1/38H01Q21/065
Inventor 王高峰齐延铸曹芽子
Owner 杭州泛利科技有限公司