Terminal multiple-input-multiple-output high-isolation adjustable antenna

A multi-input, multi-output technology, applied in antennas, antenna couplings, antenna components, etc., can solve problems such as narrow bandwidth and unfavorable multi-band MIMO antenna design, and achieve high isolation effect

Inactive Publication Date: 2017-04-19
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bandwidth of the above decoupling methods is usually narrow, which is not conducive to the design of multi-band MIMO antennas.

Method used

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  • Terminal multiple-input-multiple-output high-isolation adjustable antenna
  • Terminal multiple-input-multiple-output high-isolation adjustable antenna
  • Terminal multiple-input-multiple-output high-isolation adjustable antenna

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 As shown, the terminal multi-input multi-output high isolation adjustable antenna of the present invention includes a dielectric substrate (1), a metal ground (2), an antenna A, an antenna B, an isolated microstrip line (5), an adjustable network (4), a matching Network (7); metal ground (2) is set on the front and back parts of the dielectric substrate, the head and tail areas of the dielectric substrate belong to the metal-free ground area (3), and antenna A and antenna B are located on the metal-free ground on the front of the dielectric substrate In the middle position of (3), a section of isolated microstrip line (5) is arranged between the feeders of antenna A and B, and an adjustable network (4) is arranged between the isolated microstrip line (5) and the antenna, thereby realizing high Dual MIMO antennas with ad...

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PUM

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Abstract

The invention discloses a terminal multiple-input-multiple-output high-isolation adjustable antenna including a dielectric substrate, metal ground, an antenna A, an antenna B, an isolated microstrip line, an adjustable network, and a matching network, parts of the front and rear sides of the dielectric substrate are provided with the metal ground, the head and tail areas belong to a non-metal ground area, the antennas A and B are arranged in the non-metal ground area of the dielectric substrate and have the spacing less than a wavelength of 1/10, a section of isolated microstrip line is arranged between the antennas A and B, the adjustable network is arranged between the isolated microstrip line and the antennas, and by adjusting the capacitance or inductance value on the adjustable network to adjust the resonant frequency points of the antennas, the coupling degree at the antenna resonant frequency parts is the lowest. the matching network is arranged between the feed line and the feed point, and the echo loss at the center frequency part in the adjustable frequency range is small by adjusting the matching degree of the resonant points via the matching network. The invention is not only suitable for the design of double antennas, but also is suitable for 4MIMO, 8MIMO or other multi-antenna systems.

Description

technical field [0001] The invention belongs to the field of terminal multi-antenna technology, and relates to a compact, height-adjustable and isolated MIMO dual antenna, in particular to a terminal multi-input multi-output high-isolation adjustable antenna, which can be widely used in multi-antenna MIMO systems. Background technique [0002] Mobile communication technology has developed rapidly in the past 30 years. Mobile phones, as the fastest-growing mobile communication terminal products, are popular all over the world. an essential part. With the continuous development of communication systems from 1G to 4G, the frequency bands that modern smartphones need to cover also increase. To cover GSM850 / 900 / DCS / PCS / UMTS2100 / LTE2300 / 2500 working frequency bands, on the one hand, in a small space Designing a multi-band mobile phone antenna in-house is a daunting task. On the other hand, strong electromagnetic coupling occurs between the antenna and the surrounding devices, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50H01Q5/10H01Q1/52H01Q5/314H01Q21/28H01Q1/24
CPCH01Q1/50H01Q1/243H01Q1/521H01Q5/10H01Q5/314H01Q21/28
Inventor 徐魁文刘飞赵文生赵鹏王高峰
Owner HANGZHOU DIANZI UNIV
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