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Article: A Novel Wideband Decoupling Network for Two Antennas Based on the Wilkinson Power Divider

TitleA Novel Wideband Decoupling Network for Two Antennas Based on the Wilkinson Power Divider
Authors
KeywordsWideband
Couplings
MIMO communication
Broadband antennas
Power dividers
Issue Date2020
PublisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=8
Citation
IEEE Transactions on Antennas and Propagation, 2020, v. 68 n. 7, p. 5082-5094 How to Cite?
AbstractIn this article, a wideband decoupling network (DN) is presented based on the Wilkinson power divider (WPD). The DN is composed of 2 two-way unequal WPDs, three transmission lines (TLs), and two reactive components. Two techniques are introduced for the wideband performance: 1) by using the WPD with high output isolation, the antenna matching becomes independent of antenna decoupling. So, the decoupled antennas with the proposed DN could perform broad impedance bandwidths without using matching networks and 2) the DN is designed to minimize antennas’ coupling coefficients at two frequencies, which collectively contribute to a broader decoupling bandwidth. In addition, rigorous design formulas are presented along with systematic design procedures. Based on this, the TL lengths and component reactances can be precisely calculated instead of being fitted to achieve high antenna isolation. Two decoupling cases using the proposed DN and its simplified model are presented and compared to give an intuitive illustration of the wideband mechanism. The measurement results for decoupling case #1 show that a very wide isolation bandwidth of 23.7%, total efficiency over 65%, and the envelope correlation coefficients (ECCs) less than 0.05 can be achieved simultaneously using the proposed DN.
Persistent Identifierhttp://hdl.handle.net/10722/284061
ISSN
2019 Impact Factor: 4.371
2015 SCImago Journal Rankings: 2.130

 

DC FieldValueLanguage
dc.contributor.authorLi, M-
dc.contributor.authorJiang, L-
dc.contributor.authorYeung, KL-
dc.date.accessioned2020-07-20T05:55:47Z-
dc.date.available2020-07-20T05:55:47Z-
dc.date.issued2020-
dc.identifier.citationIEEE Transactions on Antennas and Propagation, 2020, v. 68 n. 7, p. 5082-5094-
dc.identifier.issn0018-926X-
dc.identifier.urihttp://hdl.handle.net/10722/284061-
dc.description.abstractIn this article, a wideband decoupling network (DN) is presented based on the Wilkinson power divider (WPD). The DN is composed of 2 two-way unequal WPDs, three transmission lines (TLs), and two reactive components. Two techniques are introduced for the wideband performance: 1) by using the WPD with high output isolation, the antenna matching becomes independent of antenna decoupling. So, the decoupled antennas with the proposed DN could perform broad impedance bandwidths without using matching networks and 2) the DN is designed to minimize antennas’ coupling coefficients at two frequencies, which collectively contribute to a broader decoupling bandwidth. In addition, rigorous design formulas are presented along with systematic design procedures. Based on this, the TL lengths and component reactances can be precisely calculated instead of being fitted to achieve high antenna isolation. Two decoupling cases using the proposed DN and its simplified model are presented and compared to give an intuitive illustration of the wideband mechanism. The measurement results for decoupling case #1 show that a very wide isolation bandwidth of 23.7%, total efficiency over 65%, and the envelope correlation coefficients (ECCs) less than 0.05 can be achieved simultaneously using the proposed DN.-
dc.languageeng-
dc.publisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=8-
dc.relation.ispartofIEEE Transactions on Antennas and Propagation-
dc.rightsIEEE Transactions on Antennas and Propagation. Copyright © IEEE.-
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.subjectWideband-
dc.subjectCouplings-
dc.subjectMIMO communication-
dc.subjectBroadband antennas-
dc.subjectPower dividers-
dc.titleA Novel Wideband Decoupling Network for Two Antennas Based on the Wilkinson Power Divider-
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/TAP.2020.2981679-
dc.identifier.scopuseid_2-s2.0-85088021951-
dc.identifier.hkuros310842-
dc.identifier.volume68-
dc.identifier.issue7-
dc.identifier.spage5082-
dc.identifier.epage5094-
dc.publisher.placeUnited States-

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