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Broadband metamaterial unit and broadband MIMO antenna

A technology of metamaterials and monopole antennas, which is applied in the direction of separately energized antenna arrays, antennas, antenna coupling, etc., can solve the problems of uncompact antenna units, strong coupling, and large size, and achieve strong coupling and narrow bandwidth. The effect of compact antenna structure and wide bandwidth

Inactive Publication Date: 2018-10-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

The current planar monopole MIMO antenna cannot simultaneously realize the miniaturization, broadband, compactness, and high isolation performance of the MIMO antenna.
As mentioned above, the main disadvantages in several documents are: the size is too large, the antenna unit is not compact; the antenna bandwidth is narrow or the coupling is strong; the floors of different units are separated, and a unified floor reference voltage cannot be ensured.

Method used

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  • Broadband metamaterial unit and broadband MIMO antenna
  • Broadband metamaterial unit and broadband MIMO antenna
  • Broadband metamaterial unit and broadband MIMO antenna

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038]This embodiment provides a broadband metamaterial resonant ring unit, its structural schematic diagram is as follows Figure 4 As shown, it includes a resonant ring, a dielectric substrate and a metal floor; the resonant ring is located on the upper surface of the dielectric substrate; the metal floor is the same size as the dielectric substrate and is located on the lower surface of the dielectric substrate; the resonant ring includes a ring and a cross structure; the cross structure The center of the center coincides with the center of the ring; the periphery of the cross structure is connected with the ring; the resonant ring has gaps of the same width at the same positions of the ring and the cross structure on the left and right sides of the vertical symmetry axis;

[0039] The resonant frequency band is adjusted by adjusting the radius of th...

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Abstract

The invention belonging to the technical field of microwave antennas discloses a broadband metamaterial unit and a broadband MIMO antenna. A resonant ring unit comprises a resonant ring, a dielectricsubstrate and a metal floor; and the resonant ring includes a circular ring having a slit and a cross structure. The resonant ring unit is applied to the antenna and two types of MIMO antennas are designed. The MIMO antenna has advantages of compact structure, wide bandwidth, and small size.

Description

technical field [0001] The invention belongs to the technical field of microwave antennas, and in particular relates to a broadband metamaterial unit and a broadband MIMO antenna. Background technique [0002] Multi-input-multi-output (MIMO) technology, as a new type of communication technology in the development of wireless communication technology, has unique advantages in improving system channel capacity and data transmission rate. With the development of mobile terminals in the direction of compact structure and miniaturization, the size and distance between antenna units must be reduced as much as possible. The reduction in unit spacing increases mutual coupling, thereby affecting the radiation characteristics of the antenna. How to improve the isolation between antenna elements in a limited space has become an urgent problem to be solved in the development of MIMO antenna technology. [0003] Metamaterials refer to some artificial composite structures with extraordin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P7/08H01Q1/38H01Q1/50H01Q1/52H01Q9/30H01Q21/06H01Q21/00
Inventor 杨雪松王超王秉中
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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