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Miniaturized ultra-wideband MIMO antenna based on metamaterial

An ultra-wideband and antenna technology, which is applied in the direction of independent non-interactive antenna combination, antenna coupling, antenna grounding device, etc., can solve the problems of complex structure, serious impact on antenna radiation performance, and inconvenient processing and production, so as to improve radiation performance, Effect of Good Cell Isolation Effect

Active Publication Date: 2015-01-28
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method of using metamaterials to achieve decoupling between MIMO antenna elements still has some disadvantages, such as complex structure, inconvenient processing, and serious impact on antenna radiation performance (Chih-Chun Hsu, Ken-Huang Lin, and Hsin-Lung Su, "Implementation of Broadband Isolator Using Metamaterial-Inspired Resonators and a T-Shaped Branch for MIMO Antennas", IEEE Transactions On Antennas and Propagation, Vol.59, No.10, pp.3936-3939, 2011)

Method used

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  • Miniaturized ultra-wideband MIMO antenna based on metamaterial
  • Miniaturized ultra-wideband MIMO antenna based on metamaterial
  • Miniaturized ultra-wideband MIMO antenna based on metamaterial

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Embodiment Construction

[0028] In conjunction with accompanying drawing, the present invention is described in further detail:

[0029]Fig. 1 shows the schematic diagram of the structure of a single antenna unit according to the embodiment of the present invention: this UWB antenna with trapping includes a radiator 1 (pl=9.5mm, pw=6.5mm, ss=2.5mm), feeder 2 (fl1=4mm, fl2 =3.5mm, fw=1mm), floor (gw=9mm, gl=15.4mm), dielectric substrate (L=36mm, W=26mm), second split resonant ring groove 5 (HSR1=3mm, HSR2=3.8mm , HSR3=0.5mm, groove width 0.2mm), first split resonator groove 6 (LSR1=4.7mm, LSR2=5mm, LSR3=0.5mm, groove width 0.2mm). The radiator 1 is attached to one side of the FR4 dielectric substrate (length×width=30mm×15mm) with a thickness of 1mm. The feeder 2 is connected to the radiator 1 and is on the same plane (fs=10.4mm, fp=2.5mm). By connecting the radiator 1 with the feeder 2, the side feed is formed; at the same time, the rectangular slot of the radiator 1 (sl=6mm, sw=1mm) realizes two main...

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Abstract

The invention discloses a miniaturized ultra-wideband MIMO antenna based on a metamaterial, belongs to the technical field of the antennas and specifically relates to the technical field of the ultra-wideband multiple-input-multiple-output antennas and the technical field of the metamaterials. The antenna comprises a rectangular dielectric substrate, two unit antennas arranged on the rectangular dielectric substrate in mirror symmetry, and a decoupling open resonant ring arranged on the frontage of the dielectric substrate, wherein each unit antenna comprises a radiator and a feeder line both arranged on the frontage of the dielectric substrate, and a metal ground plate arranged on the back of the dielectric substrate. The miniaturized ultra-wideband MIMO antenna based on the metamaterial has good omnidirectivity, a low cross coupling efficient and an excellent wave trapping effect.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to the technical fields of Ultra-Wideband (UWB) Multiple-Input Multiple-Output (Multiple-Input Multiple-Output, MIMO) antennas and metamaterials. Background technique [0002] In recent years, ultra-wideband (UWB) technology has broad application prospects in short-distance wireless communication due to its characteristics of wide bandwidth, high speed, and anti-multipath, and has attracted more and more attention. UWB antennas, as one of the core parts of UWB communication systems, have increasingly become a research hotspot for researchers at home and abroad. However, within the wide frequency range of 3.1-10.6 GHz, it overlaps with the frequency bands of many current communication technologies, such as Wi-MAX technology (3.4-3.69 GHz), WLAN technology (5.75-5.85 GHz) and so on. To solve this problem, designing an antenna with a notch effect is undoubtedly an effective solution....

Claims

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Application Information

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IPC IPC(8): H01Q1/48H01Q1/52H01Q21/28H01Q1/38
Inventor 段兆云汪菲唐涛黄民智王战亮宫玉彬
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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