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Double-frequency high-isolation mobile phone MIMO antenna based on mode orthogonality

A high isolation, mode technology, applied in the direction of antenna, antenna coupling, antenna grounding device, etc., can solve the problems of single coverage frequency band, low channel capacity, large space occupation, etc., to ensure channel capacity, reduce volume, and solve the problem of space occupation big effect

Active Publication Date: 2021-01-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a dual-frequency high-isolation mobile phone MIMO antenna based on mode orthogonality for the defects involved in the background technology, and to realize high-isolation MIMO by utilizing the orthogonality of the radiation modes of the antenna elements Antenna technology, at the same time solve the problem that the existing antenna cannot cover the 5G frequency bands of the three major operators at the same time, resulting in a single coverage frequency band or setting up multiple antennas resulting in large space occupation and low channel capacity

Method used

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  • Double-frequency high-isolation mobile phone MIMO antenna based on mode orthogonality

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Embodiment Construction

[0036] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0037] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0038] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the present invention discloses a dual-frequency high-isolation mobile phone MIMO antenna based on mode orthogonality, including a dielectric substrate, a first dielectric board, a second dielectric board, a first antenna module, and a second antenna module;

[0039] The medium substrate, the first medium plate, and the second medium plate are all rectangular plates, wherein a metal floor is printed on the center ...

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Abstract

The invention discloses a dual-frequency high-isolation mobile phone MIMO antenna based on mode orthogonality. The dual-frequency high-isolation mobile phone MIMO antenna comprises a dielectric substrate, two dielectric plates, a first antenna module and a second antenna module, wherein the antenna module is composed of a radiation unit and a decoupling structure, the metal floor is printed on theback of the dielectric substrate; the radiation unit is composed of two radiation branches printed on the two sides of the metal floor, and the inner side faces of the two dielectric plates are printed; the decoupling structure is composed of two branches, and the coupling degree of two resonance points is reduced. According to the structure of the antenna provided by the invention, dual frequency bands are realized through different resonance branches of the antenna, the dual frequency bands cover 3.4 GHz-3.5 GHz of a telecommunication 5G frequency band, 3.5 GHz-3.6 GHz of a Unicom 5G frequency band and 4.8 GHz-4.9 GHz of a mobile 5G frequency band, and a problem of covering 5G signals of three major domestic operators is well solved; the application of a mode orthogonal decoupling modein double frequencies is verified.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a dual-frequency high-isolation mobile phone MIMO antenna based on mode orthogonality. Background technique [0002] In recent years, with the rapid development of wireless communication and the continuous improvement of communication system capacity, the electromagnetic wave propagation environment has become more and more complex. With the improvement of people's quality of life, higher requirements are put forward for wireless mobile communication systems and mobile phones. Different from the traditional communication system, in the MIMO system including space diversity and space multiplexing, multipath effect has become a favorable condition, not only can be used to improve the information transmission rate, in addition, the MIMO system can also use space diversity technology to Ensure the reliability of information transmission. [0003] The fifth generation (5G) mobile c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q1/52H01Q5/20
CPCH01Q1/36H01Q1/48H01Q1/52H01Q5/20
Inventor 钱昊顾长青赵兴
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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