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Article: A General and Systematic Method to Design Neutralization Lines for Isolation Enhancement in MIMO Antenna Arrays

TitleA General and Systematic Method to Design Neutralization Lines for Isolation Enhancement in MIMO Antenna Arrays
Authors
KeywordsAntenna arrays
MIMO communication
Couplings
Systematics
Bandwidth
Issue Date2020
PublisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25
Citation
IEEE Transactions on Vehicular Technology, 2020, v. 69 n. 6, p. 6242-6253 How to Cite?
AbstractA general and systematic approach is the first time proposed in this paper to design the neutralization line (NL) for isolation enhancement in multiple-input multiple-output (MIMO) antenna arrays. Each NL consists of a metal strip and a reactive component attached at its middle position. It is connected with every two antenna radiators to generate an additional coupling path against the original antenna coupling for isolation enhancement. A general network model that leads to a systematic design procedure is developed to meet the required isolation criteria. Three practical examples are presented and used to verify the proposed NL-based decoupling technique (DT). The measurement results align well with simulations. For all these examples, good impedance matching, isolation over 25 dB, total radiation efficiencies over 70%, and very low envelop correlation coefficients (ECCs) can be achieved simultaneously after adopting the proposed NL DT. Compared with previous decoupling works using parasitic elements, decoupling networks or NLs, the proposed method can achieve either a much wider decoupling bandwidth or a much smaller antenna separation distance while keeping a low design complexity along with systematic design procedure.
Persistent Identifierhttp://hdl.handle.net/10722/284299
ISSN
2019 Impact Factor: 5.379
2015 SCImago Journal Rankings: 1.203

 

DC FieldValueLanguage
dc.contributor.authorLi, M-
dc.contributor.authorJiang, L-
dc.contributor.authorYeung, KL-
dc.date.accessioned2020-07-20T05:57:37Z-
dc.date.available2020-07-20T05:57:37Z-
dc.date.issued2020-
dc.identifier.citationIEEE Transactions on Vehicular Technology, 2020, v. 69 n. 6, p. 6242-6253-
dc.identifier.issn0018-9545-
dc.identifier.urihttp://hdl.handle.net/10722/284299-
dc.description.abstractA general and systematic approach is the first time proposed in this paper to design the neutralization line (NL) for isolation enhancement in multiple-input multiple-output (MIMO) antenna arrays. Each NL consists of a metal strip and a reactive component attached at its middle position. It is connected with every two antenna radiators to generate an additional coupling path against the original antenna coupling for isolation enhancement. A general network model that leads to a systematic design procedure is developed to meet the required isolation criteria. Three practical examples are presented and used to verify the proposed NL-based decoupling technique (DT). The measurement results align well with simulations. For all these examples, good impedance matching, isolation over 25 dB, total radiation efficiencies over 70%, and very low envelop correlation coefficients (ECCs) can be achieved simultaneously after adopting the proposed NL DT. Compared with previous decoupling works using parasitic elements, decoupling networks or NLs, the proposed method can achieve either a much wider decoupling bandwidth or a much smaller antenna separation distance while keeping a low design complexity along with systematic design procedure.-
dc.languageeng-
dc.publisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25-
dc.relation.ispartofIEEE Transactions on Vehicular Technology-
dc.rightsIEEE Transactions on Vehicular Technology. Copyright © Institute of Electrical and Electronics Engineers.-
dc.rights©20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.-
dc.subjectAntenna arrays-
dc.subjectMIMO communication-
dc.subjectCouplings-
dc.subjectSystematics-
dc.subjectBandwidth-
dc.titleA General and Systematic Method to Design Neutralization Lines for Isolation Enhancement in MIMO Antenna Arrays-
dc.typeArticle-
dc.identifier.emailLi, M: minli@hku.hk-
dc.identifier.emailJiang, L: jianglj@hku.hk-
dc.identifier.emailYeung, KL: kyeung@eee.hku.hk-
dc.identifier.authorityJiang, L=rp01338-
dc.identifier.authorityYeung, KL=rp00204-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TVT.2020.2984044-
dc.identifier.hkuros310843-
dc.identifier.volume69-
dc.identifier.issue6-
dc.identifier.spage6242-
dc.identifier.epage6253-
dc.publisher.placeUnited States-

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