4*4 ultra-wideband MIMO antenna

An ultra-wideband antenna and ultra-wideband technology, applied in the field of 4×4 ultra-wideband MIMO antennas, can solve the problems of too narrow frequency band for improving isolation, no public reports, and poor isolation effect, etc., to achieve improved isolation and repeatability Good, good isolation effect

Active Publication Date: 2017-03-22
YUNNAN UNIV
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AI Technical Summary

Problems solved by technology

According to the existing UWB MIMO antenna design reports, most of them have narrow bandwidth, low isolation, and relatively large size, although many existing MIMO antennas have introduced a variety of isolation structure, but most of them have shortcomings such as too n

Method used

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  • 4*4 ultra-wideband MIMO antenna
  • 4*4 ultra-wideband MIMO antenna

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Embodiment Construction

[0032] Depend on figure 1 As shown, the 4×4 ultra-wideband MIMO antenna in the present invention is composed of the following 7 parts: a dielectric plate 1, four monopole ultra-wide antenna units 2-5, and a rectangular mesh cross-shaped isolation structure 6, 7, wherein:

[0033] a. The dielectric board 1 is a square dielectric board;

[0034] b. The four monopole ultra-wideband antennas 2-5 have the same structure and are located at the four corners of the upper layer of the square dielectric plate 1. The two adjacent monopole ultra-wideband antennas are perpendicular to each other, and the two non-adjacent two The two monopole ultra-broadband antennas are arranged antiparallel, and the four antennas are center-symmetrical on the dielectric plate;

[0035] c. The four monopole ultra-wideband antenna units 2-5 are fed by coplanar waveguide, and the feed microstrip line is perpendicular to the edge of the square dielectric 1 plate;

[0036] d. Each monopole ultra-wideband ant...

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Abstract

The invention relates to a 4*4 ultra-wideband MIMO antenna, which belongs to the technical field of wireless communication. The 4*4 ultra-wideband MIMO antenna consists of four monopole ultra-wideband antenna units, two rectangular reticular cross-shaped isolation structures and a dielectric plate. The four monopole ultra-wideband antenna units have a same structure and are situated on the four corners of the dielectric plate. Two antennas on one diagonal line turn180 degrees, and antennas on one horizontal line turn 90 degrees. The integral body is centrosymmetric relative to the dielectric plate. The two rectangular reticular cross-shaped isolation structures are situated on the centers of the front and back sides of the dielectric plate and are vertically symmetric relative to the dielectric plate. The novel reticular isolation structures introduced in the MIMO antenna allow the antenna to obtain excellent isolation performance. The 4*4 ultra-wideband MIMO antenna has the advantages of wide bandwidth, high isolation degree, simple structure and easy manufacture and integration, and is suitable for various mini mobile terminals.

Description

technical field [0001] The invention relates to a 4×4 ultra-wideband MIMO antenna, which belongs to the technical field of wireless communication. Background technique [0002] Ultra-wideband (UWB) technology is a new type of short-distance high-speed wireless communication technology that has attracted much attention. Since the U.S. Federal Communications Commission has allocated 3.1-10.6 GHz as the UWB frequency band for civilian use, industry and academia have carried out a lot of research work in the field of UWB radio technology. [0003] Multiple-input multiple-output (MIMO) technology is also one of the important technologies for broadband wireless communication in recent years. This technology can double the channel capacity of the system without additionally increasing spectrum resources and antenna transmission power, greatly improving the Spectrum utilization is regarded as the core technology of next-generation mobile communication. Combining UWB technology wit...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/38H01Q1/52H01Q23/00
Inventor 申东娅何谢勇张仁龙向晶马祖辉张秀普张桃艳王珂
Owner YUNNAN UNIV
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