A Novel Calculation Method to Design Parasitic Decoupling Technique for Two Antennas

In this paper, a systematic and calculation-based parasitic decoupling technique (PDT) is proposed to mitigate the mutual coupling between two closely coupled antennas. The adopted parasitic decoupling structure consists of two transmission lines connected to the feed lines of antennas and a parasit...

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Main Authors: Min Li, Di Wu, Bing Xiao, Kwan Lawrence Yeung, Lijun Jiang
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9121257/
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author Min Li
Di Wu
Bing Xiao
Kwan Lawrence Yeung
Lijun Jiang
author_facet Min Li
Di Wu
Bing Xiao
Kwan Lawrence Yeung
Lijun Jiang
author_sort Min Li
collection DOAJ
description In this paper, a systematic and calculation-based parasitic decoupling technique (PDT) is proposed to mitigate the mutual coupling between two closely coupled antennas. The adopted parasitic decoupling structure consists of two transmission lines connected to the feed lines of antennas and a parasitic element connected with a transmission line and terminated by a reactive load. Rigorous decoupling theory and systematic design procedures are presented. The lengths of transmission lines and value of reactive load can be precisely calculated to increase antenna isolation. The superiority of the proposed PDT is verified by four decoupling examples. The simulated and measured results show that high isolations over 24 dB, efficiencies above 70%, and envelop correlation coefficients below 0.05 are achieved simultaneously. The results indicate the proposed PDT a promising decoupling method for MIMO systems.
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spelling doaj.art-f3ed2385d1e847e789ea4c0ddd03c0b52022-12-21T17:25:36ZengIEEEIEEE Access2169-35362020-01-01811604111605110.1109/ACCESS.2020.30037949121257A Novel Calculation Method to Design Parasitic Decoupling Technique for Two AntennasMin Li0https://orcid.org/0000-0003-2273-9503Di Wu1Bing Xiao2https://orcid.org/0000-0001-9018-6627Kwan Lawrence Yeung3Lijun Jiang4https://orcid.org/0000-0002-7391-6322Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong KongCollege of Electronics and Information Engineering, Shenzhen University, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, The University of Hong Kong, Hong KongDepartment of Electrical and Electronic Engineering, The University of Hong Kong, Hong KongDepartment of Electrical and Electronic Engineering, The University of Hong Kong, Hong KongIn this paper, a systematic and calculation-based parasitic decoupling technique (PDT) is proposed to mitigate the mutual coupling between two closely coupled antennas. The adopted parasitic decoupling structure consists of two transmission lines connected to the feed lines of antennas and a parasitic element connected with a transmission line and terminated by a reactive load. Rigorous decoupling theory and systematic design procedures are presented. The lengths of transmission lines and value of reactive load can be precisely calculated to increase antenna isolation. The superiority of the proposed PDT is verified by four decoupling examples. The simulated and measured results show that high isolations over 24 dB, efficiencies above 70%, and envelop correlation coefficients below 0.05 are achieved simultaneously. The results indicate the proposed PDT a promising decoupling method for MIMO systems.https://ieeexplore.ieee.org/document/9121257/Decoupling techniquehigh isolationMIMO antennaparasitic elementpattern diversity
spellingShingle Min Li
Di Wu
Bing Xiao
Kwan Lawrence Yeung
Lijun Jiang
A Novel Calculation Method to Design Parasitic Decoupling Technique for Two Antennas
IEEE Access
Decoupling technique
high isolation
MIMO antenna
parasitic element
pattern diversity
title A Novel Calculation Method to Design Parasitic Decoupling Technique for Two Antennas
title_full A Novel Calculation Method to Design Parasitic Decoupling Technique for Two Antennas
title_fullStr A Novel Calculation Method to Design Parasitic Decoupling Technique for Two Antennas
title_full_unstemmed A Novel Calculation Method to Design Parasitic Decoupling Technique for Two Antennas
title_short A Novel Calculation Method to Design Parasitic Decoupling Technique for Two Antennas
title_sort novel calculation method to design parasitic decoupling technique for two antennas
topic Decoupling technique
high isolation
MIMO antenna
parasitic element
pattern diversity
url https://ieeexplore.ieee.org/document/9121257/
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