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Antenna unit and MIMO antenna system

An antenna unit and antenna technology, applied in antennas, antenna couplings, antenna arrays, etc., can solve problems such as large channel interference, poor isolation of MIMO antennas, and restrictions on the application of MIMO technology, and achieve improved isolation and interference between channels Reduced effect

Active Publication Date: 2018-10-16
康凯科技(杭州)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing MIMO antennas generally have the problems of poor isolation and large channel interference, which greatly limits the application of MIMO technology in the field of wireless communication

Method used

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  • Antenna unit and MIMO antenna system
  • Antenna unit and MIMO antenna system
  • Antenna unit and MIMO antenna system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, Embodiment 1 provides an antenna unit 100 , which includes a rectangular substrate 1 , a first antenna 2 , a second antenna 3 and a feeder fixing device 8 arranged on the substrate 1 . Wherein: the first antenna 2 and the second antenna 3 are along the center line of the long side of the substrate 1 ( figure 1 shown by the horizontal dotted line in ) are sequentially arranged on the upper surface of the substrate 1, and the first antenna 2 and the second antenna 3 are mirror-symmetrically arranged on the short side centerline of the substrate 1 ( figure 1 ), the feeder fixing device 8 is arranged at the center of one of the long sides of the substrate 1 .

[0028] The first antenna 2 includes a first antenna radiator and a first feeder 7 , one end of the first feeder 7 is connected to the feeder connector 4 of the first antenna radiator, and the other end of the first feeder 7 is a feeder. The second antenna 3 includes a second antenna radia...

Embodiment 2

[0031] Such as figure 2As shown, embodiment 2 provides an antenna unit 200, the structure of the antenna unit 200 is basically the same as that of the antenna unit 100 in embodiment 1, the substrate 1 is rectangular, the first antenna 2 and the second antenna 3 They are sequentially arranged on the upper surface of the substrate 1 along the centerline of the long sides of the substrate 1 .

[0032] Different from Embodiment 1, in Embodiment 2, the feeder fixing device 8 is arranged at the center of one of the short sides of the substrate 1, and the feeder connector 4 of the first antenna 2 and the feeder connector 5 of the second antenna 3 both face Feeder fixing device 8.

[0033] In Embodiment 1 and Embodiment 2, the first antenna 2 and the second antenna 3 are arranged in series on the substrate 1, so in practical applications, the first antenna 2 and the second antenna 3 are both regarded as horizontally polarized antennas or vertically polarized antennas are used.

Embodiment 3

[0035] Such as image 3 As shown, Embodiment 3 provides an antenna unit 300, which includes an "L"-shaped substrate 1, and the substrate 1 includes a transverse substrate 1a and a vertical substrate 1b that are perpendicular to each other. The feeder fixing device 8 is arranged on the outer edge of the base plate 1 and close to the junction of the horizontal base plate 1a and the vertical base plate 1b.

[0036] The first antenna 2 is arranged vertically on the vertical substrate 1b, and the second antenna 3 is arranged laterally on the transverse substrate 1a. Both the feeder connector 4 of the first antenna 2 and the feeder connector 5 of the second antenna 3 face the feeder fixing device 8.

[0037] In Embodiment 3, the first antenna 2 and the second antenna 3 are arranged on the substrate 1 in a mutually perpendicular manner, so in practical applications, the first antenna 2 and the second antenna 3 can be used as vertically polarized antennas and horizontally polarized an...

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PUM

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Abstract

The invention provides an antenna unit and a MIMO antenna system. The antenna unit comprises a substrate, a first antenna and a second antenna, wherein the first antenna and the second antenna are arranged on the upper surface of the substrate. The first antenna comprises a first antenna radiator and a first feeder, wherein one end of the first feeder is connected with the feeder joint of the first antenna radiator, and the other end of the first feeder is a feed terminal. The second antenna comprises a second antenna radiator and a second feeder, wherein one end of the second feeder is connected with the feeder joint of the second antenna radiator, and the other end of the second feeder is a feed terminal. A feeder fixing device is arranged at an edge of the substrate, and the feed terminal of the first feeder and the feed terminal of the second feeder are respectively fixed to the feeder fixing device and extend out of the feeder fixing device. According to the antenna unit, two antennas are integrated; an independent feeder is arranged on each antenna; isolation of the antenna unit is greatly improved; and interference between channels is effectively reduced.

Description

technical field [0001] The invention relates to the antenna field, in particular to a MIMO antenna system. Background technique [0002] The antenna system is essential in the composition of the communication system. In existing wireless communications, a single antenna is used for a transmitting source and a receiving end respectively, and this system is called single input single output (SISO). Such systems are prone to multipath effects which can cause problems. When the electromagnetic wave encounters obstacles such as hills, canyons, buildings, wires and cables, problems such as reflection, diffraction, and scattering will occur, so the electromagnetic wave will reach the destination through multiple paths. Delays in scattered signals can lead to signal fading, dropped calls at the edge (cliff effect), and intermittent reception (like a picket fence pattern). In digital communication systems, such as the Internet, this results in a reduction in the data transfer rate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q21/00
CPCH01Q1/38H01Q1/50H01Q1/523H01Q21/00
Inventor 汪义兵沈骏
Owner 康凯科技(杭州)股份有限公司