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Eight-element ultra wide band MIMO antenna

An ultra-wideband and antenna technology, applied in the field of ultra-wideband MIMO antennas, can solve the problems of inability to meet the miniaturization development of mobile devices, low isolation, and large size, and achieve the effects of compact structure, low mutual coupling, and small size

Active Publication Date: 2015-11-11
SUNWAVE COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, as far as the existing UWB MIMO antenna design reports are concerned, most of them are still in the two-unit and four-unit design, and most of them are designed with very narrow bandwidth, low isolation, and relatively large size. Meet the needs of the development of miniaturization of mobile devices

Method used

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  • Eight-element ultra wide band MIMO antenna

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0033] Such as Figure 1 As shown, the eight-unit ultra-wideband MIMO antenna of the present invention includes a relative permittivity of 4.4, a loss tangent of 0.02, and a thickness of 0.8mm FR4 dielectric substrate 13 and a ground plate 10 located at the lower layer of the dielectric substrate, respectively The first radiation area 1, the second radiation area 2, the third radiation area 3, ...

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Abstract

The invention discloses an eight-element ultra wide band MIMO antenna. The eight-element ultra wide band MIMO antenna comprises a medium substrate, a grounding plate arranged at the lower layer of the medium substrate, and four same radiating areas arranged in four round angle positions of the upper layer of the medium substrate respectively and symmetrically. Each radiating area comprises a first ground support structure with a pendulum bob shape located at round angle of the medium substrate and the pendulum bob end coincides with the contour of the medium substrate, Each radiating area also comprises a first antenna unit and a second antenna unit which are distributed symmetrically along the center axis of the first ground support structure, the first antenna unit and the second antenna unit are in quadrature feed connection. A first L-shaped recessed groove is arranged at the line side, close to the first ground support structure, of the first antenna unit. One end of a first feed line is connected with the first antenna unit, and the other end of the first feed line is equipped with a first feed port. A second L-shaped recessed groove is arranged at the line side, close to the first ground support structure, of the second antenna unit. One end of a second feed line is connected with the first antenna unit, and the other end of the second feed line is equipped with a second feed port. The eight-element ultra wide band MIMO antenna has advantages of high isolation, low cross coupling, small size and low cost.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an ultra-wideband MIMO antenna. Background technique [0002] Broadband is an inevitable trend in the development of future communication systems. Ultra Wide Band (UWB) technology is a new type of wireless communication technology. It has outstanding advantages such as anti-fading, anti-interference, large capacity, high speed, and low power, and is considered to be a revolutionary technology in the field of wireless communication. In the early days, UWB antennas were mainly used in the radar field above the military. Since February 14, 2002, the Federal Communications Commission (FCC) of the United States has approved the use of the 3.1GHz-10.6GHz band for civilian use, and the application fields are mainly indoor wireless communication and radar positioning systems. Since then, ultra-wideband antennas have become a research hotspot in both academia and industr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q5/50H01Q1/52
Inventor 王友保杨健吴士杰
Owner SUNWAVE COMM
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