Modified U-Shaped Resonator as Decoupling Structure in MIMO Antenna

被引：44

作者：

Iqbal, Amjad ^{[1
,2
]}

Altaf, Ahsan ^{[3
]}

Abdullah, Mujeeb ^{[4
]}

Alibakhshikenari, Mohammad ^{[5
]}

Limiti, Ernesto ^{[5
]}

Kim, Sunghwan ^{[6
]}

机构：

[1] Multimedia Univ, Ctr Wireless Technol, Fac Engn, Cyberjaya 63100, Malaysia

[2] CECOS Univ IT & Emerging Sci, Dept Elect Engn, Peshawar 25000, Pakistan

[3] Istanbul Medipol Univ, Dept Elect Engn, TR-34083 Istanbul, Turkey

[4] Bacha Khan Univ, Dept Comp Sci, Charsadda 24420, Pakistan

[5] Univ Roma Tor Vergata, Dept Elect Engn, Via Politecn 1, I-00133 Rome, Italy

[6] Univ Ulsan, Sch Elect Engn, Ulsan 44610, South Korea

来源：

ELECTRONICS | 2020年 / 9卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

isolation enhancement; surface waves; gain; circuit model; line resonators; MIMO antennas; MUTUAL COUPLING REDUCTION; EBG; POLARIZATION; PERFORMANCE;

D O I：

10.3390/electronics9081321

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents an isolation enhancement of two closely packed multiple-input multiple-output (MIMO) antenna system using a modified U-shaped resonator. The modified U-shaped resonator is placed between two closely packed radiating elements resonating at 5.4 GHz with an edge to edge separation distance of 5.82 mm (lambda(degrees)/10). Through careful adjustment of parametric modelling, the isolation level of -23 dB among the densely packed elements is achieved. The coupling behaviour of the MIMO elements is analysed by accurately designing the equivalent circuit model in each step. The antenna performance is realized in the presence and absence of decoupling structure, and the results shows negligible effects on the antenna performance apart from mutual coupling. The simple assembly of the proposed modified U-shaped isolating structure makes it useful for several linked applications. The proposed decoupling structure is compact in nature, suppress the undesirable coupling generated by surface wave and nearby fields, and is easy to fabricate.

引用

页码：1 / 13

页数：13

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