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Multi-frequency high-isolation MIMO antenna

A high-isolation and antenna technology, applied in antennas, antenna coupling, antenna arrays, etc., can solve the problems of high loss, MIMO antenna isolation and poor radiation, and achieve the effect of easy processing, simple structure and good radiation characteristics

Pending Publication Date: 2018-06-15
深圳信息通信研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Existing MIMO antennas generally have the disadvantages of poor isolation and radiation and large loss

Method used

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Examples

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Embodiment Construction

[0035] Such as figure 1 As shown in -6, the high-isolation MIMO antenna includes a good conductor layer 1 on the upper surface, a good conductor layer 2 on the lower surface, a dielectric substrate 3, an hourglass-shaped spacer frame 4 and a trident-shaped spacer strip 5, between three identical element antennas Three identical hourglass-shaped isolation frames 4 and symmetrical trident-shaped isolation bars 5 are provided, wherein the unit antenna is composed of a dielectric substrate 3, a good conductor layer 1 on the upper surface, and a good conductor layer 2 on the lower surface, and the two dielectric substrates 3 of the unit antenna An upper surface good conductor layer 3 and a lower surface good conductor layer 2 are respectively arranged on each end surface, the upper surface good conductor layer 3 is a street lamp type monopole structure, the lower surface good conductor layer 2 is an isosceles trapezoidal structure, and an hourglass-shaped isolation frame 4 is a sym...

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Abstract

The invention relates to a multi-frequency high-isolation MIMO antenna. The multi-frequency high-isolation MIMO antenna is characterized in that three identical hourglass type isolation frames and a symmetrical tri-forked isolation strip are arranged among three identical unit antennas; each unit antenna is formed by a dielectric substrate, an upper surface good conductor layer and a lower surfacegood conductor layer; the upper surface good conductor layer is a street lamp type monopole structure; the lower surface good conductor layer is a isosceles trapezoid structure; each hourglass type isolation frame is a symmetrical polygon frame type structure in which the middle part is retracted inward; the tri-forked isolation strip is formed through connection of three rectangular branch knots; and the three identical hourglass type isolation frames, the symmetrical tri-forked isolation strip and the upper surface good conductor layer of the each unit antenna are located on the same plane.Compared with a current multi-frequency MIMO antenna, the multi-frequency high-isolation MIMO antenna uses the hourglass type isolation frames and the symmetrical tri-forked isolation strip, thus effectively implementing the high-isolation performance, further improving the performance of antenna and expanding the impedance bandwidth of antenna. The multi-frequency high-isolation MIMO antenna hasthe advantages of being preferable in radiating property, being simple in structure, being easy for processing, being low in mutual coupling, being compatible for multi-frequency, and being omnidirectional in radiation.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a multi-frequency high-isolation MIMO antenna loaded with an hourglass-shaped isolation frame and a trident-shaped isolation bar. Background technique [0002] In recent years, in the development of society, wireless communication technology has played a vital role. Antenna, as a key component of a wireless communication system, largely determines the overall performance of a wireless communication system. At present, common mobile communication devices are characterized by the diversity of frequency bands and standards. People's demand for the speed, capacity and security of wireless communication systems is increasing, and the multi-frequency MIMO antenna can be compatible with multiple frequency bands. Realize multi-antenna work, realize simultaneous transmission and reception of signals in multiple spatial orientations, improve the capacity, spectrum utilization and channel ...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q21/00
CPCH01Q1/38H01Q1/50H01Q1/521H01Q21/00H01Q21/0006Y02D30/70
Inventor 李文卓张博钧冯志芳唐伟生张彦黄峰鹤贺丽娟
Owner 深圳信息通信研究院
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