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Integrated dual-antenna system

A dual-antenna, integrated technology, applied in antennas, antenna coupling, antenna components, etc., can solve the problems of large size, low performance, and short antenna distance, and achieve the effect of miniaturization, high isolation, and reduced distance

Inactive Publication Date: 2017-11-03
曲龙跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of the wireless device market, the volume of wireless devices is getting smaller and smaller, resulting in the distance between the antennas getting closer and closer, which leads to an increase in the coupling between the antennas
The enhancement of antenna coupling will lead to more and more prominent interference between antennas, reducing the sensitivity and communication distance of antennas, resulting in poor antenna performance
[0003] In the existing antenna technology, multiple antennas need to be built separately and have a large size
And in order to realize the high isolation (S12) between the antennas, the distance between the antennas needs to be guaranteed to be greater than half a wavelength, otherwise it is difficult to achieve high isolation, which is unfavorable for the implementation and application of the antennas; other existing technologies are Create a decoupling structure between the antennas, but this method increases the implementation cost and takes up a lot of space
In short, the existing technology has the characteristics of large size, difficult implementation, and low performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, in the clearance area on the metal plate 1, one end of the first feeder 2 is connected to the metal plate 1, and the other end is connected to the feeder connection line I3. One end of the feed connection line I3 is connected to the first feed 2, and the other end is connected to a point of the metal plate 1, forming the first feed loop. Components I 4 are connected to the feed connection line I 3; components I 4 include capacitors, inductances, resistors and wires, and can also be any combination of the above four types; components I 4 can be combined in series or in parallel ; There can be one or more feed connecting lines I 3, which can be planar or three-dimensional. This part is mainly responsible for the impedance matching of the first antenna.

[0027] In the clearance area, one end of the second feed 5 is connected to the metal plate 1 , and the other end is connected to the feed connection line II 6 . One end of the feed connection...

Embodiment 2

[0032] This embodiment is a modified structure of Embodiment 1, but is not limited to this structure.

[0033] Such as figure 2 As shown, in the clearance area on the metal plate 1 , one end of the first feeder 2 is connected to the metal plate 1 , and the other end is connected to the feeder connection line 3 . One end of the feed connecting wire 3 is connected to the first feed 2, and the other end is connected to a point of the metal plate 1 to form a first feed loop. The component I 4 is connected to the feed connection line 3 . The components I 4 include capacitors, inductors, resistors and wires, and can be any combination of the above four types; the components I 4 can be combined in series or in parallel; the feed connecting lines 3 can be one or more, It can be flat or three-dimensional. This part is mainly responsible for the impedance matching of the first antenna.

[0034] In the clearance area, one end of the second feed 5 is connected to the metal plate 1 , ...

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Abstract

The invention discloses an integrated dual-antenna system. The integrated dual-antenna system comprises a metal plate (1), a first feeder (2), a second feeder (5), a feed connection line I (3), a feed connection line II (6), a resonant connection line (8) and a coupling reduction structure (10), wherein the first feeder (2) and the second feeder (5) are respectively used for signal feeding of a first antenna and a second antenna, the feed connection line I (3) and the feed connection line II (6) are respectively used for impedance adjustment of the first antenna and the second antenna, the resonant connection line (8) is used for adjusting a resonant frequency of the two antennas, and the coupling reduction structure (10) is used for reducing coupling between the antennas and achieving high isolation. Due to the effect of the coupling reduction structure, the dual-antenna system can generate high isolation S12 (can reach -40dB), thus, the antenna can integrate the two antennas, the antenna size is greatly reduced, and the isolation is improved.

Description

technical field [0001] The invention relates to a mobile communication device and other wireless equipment, in particular to an integrated dual-antenna system. Background technique [0002] With the rapid development of wireless communication technology and the improvement of people's needs, more and more antennas need to be integrated in small wireless devices, which puts forward higher requirements for antenna technology. However, with the development of the wireless device market, the volume of the wireless device is getting smaller and smaller, resulting in a closer distance between the antennas, which leads to an increase in the coupling between the antennas. The enhancement of antenna coupling will lead to more and more prominent interference between antennas, reduce the sensitivity and communication distance of the antenna, and lead to poor performance of the antenna. [0003] In the existing antenna technology, multiple antennas need to be built separately and have ...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q1/24
CPCH01Q1/38H01Q1/243H01Q1/48H01Q1/50H01Q1/521
Inventor 曲龙跃刘强刘士铭朴海燕曲芸豪
Owner 曲龙跃
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