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Decoupling structure among multi-input-multi-output antennas

A multi-output, inter-antenna technology, applied in antenna coupling, antenna, antenna components and other directions, can solve the problem of not meeting the needs of new wireless communication in the future, and achieve the effect of novel design, convenient debugging and easy integration

Inactive Publication Date: 2018-11-20
HARBIN ENG UNIV
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Problems solved by technology

Therefore, these past technologies can no longer meet the needs of future new wireless communications.

Method used

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  • Decoupling structure among multi-input-multi-output antennas
  • Decoupling structure among multi-input-multi-output antennas
  • Decoupling structure among multi-input-multi-output antennas

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0027] Combine Figure 1 to Figure 6 The present invention designs a decoupling structure applied to multiple input and multiple output antennas. The designed decoupling metamaterial unit structure uses the coupling between the inner and outer patches to form resonance. The structure is composed of a dielectric substrate and a closed rectangle The ring, "swastika"-shaped structure, composed of four U-shaped stripline structures, realizes the miniaturization of the multi-input multi-output antenna decoupling structure and the adjustable design of the resonance frequency. The designed decoupling metamaterial unit structure is arranged between the multiple input and multiple output antenna array elements to reduce the mutual interference between the antenna elements.

[0028] The "swastika"-shaped structure can also be an anti-swastika-shaped structure; ...

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Abstract

A decoupling structure among multi-input-multi-output antennas comprises a dielectric substrate and a patch, wherein the patch is arranged on the dielectric substrate and comprises an enclosed rectangular ring, a swastika-shaped structure and / or inverse swastika-shaped structure and a U-shaped strip line structure, wherein the enclosed rectangular ring is arranged on the dielectric substrate, theswastika-shaped structure and / or inverse swastika-shaped structure is embedded into the rectangular ring, the rectangular ring is connected with one end of the U-shaped strip line structure, and the swastika-shaped structure and / or inverse swastika-shaped structure is embedded into a gap of the U-shaped strip line structure. With the adoption of a mode that an inner structure and an outer structure are embedded, resonant property with high impedance characteristic is formed, the decoupling structure is simple and integrates with the multi-input-multi-output antennas, and the whole profile of the decoupling structure is relatively low; the structure is reasonable in layout, the space resource is reasonably utilized, integrated design of a wireless communication system terminal is easy to achieve, and installation and debugging are facilitated; and the structure has relatively small size and is easy to integrate with mobile terminal equipment, the resonant frequency can be conveniently adjusted very well, and the effect of preventing required interference is achieved.

Description

Technical field [0001] The present invention relates to a decoupling structure, in particular to a decoupling structure used between multiple input and multiple output antennas. Background technique [0002] Multiple input multiple output technology is derived from wireless communication antenna diversity technology and smart antenna technology. It is a combination of multiple input single output and single input multiple output technology, and has the advantages and characteristics of both. The multiple-input multiple-output antenna is a multi-antenna structure applied to the transmitting end and receiving end of the system to realize radio transmission and reduce the influence of the multipath effect of the wireless channel. [0003] The multiple-input multiple-output technology has the following advantages: First, it can increase capacity without increasing additional power or bandwidth, that is, providing spatial multiplexing gain. By transmitting different data streams on dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/52H01Q1/24
CPCH01Q1/24H01Q1/523
Inventor 李迎松罗生元
Owner HARBIN ENG UNIV
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