Mutual Coupling Reduction With Dielectric Superstrate for Base Station Arrays

被引：39

作者：

Da, Yiran ^{[1
]}

Zhang, Zhenyuan ^{[1
]}

Chen, Xiaoming ^{[1
]}

Kishk, Ahmed A. ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Informat & Commun Engn, Xian 710049, Peoples R China

[2] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ 3F 1M8, Canada

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2021年 / 20卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Couplings; Antenna measurements; Mutual coupling; Base stations; 5G mobile communication; Dielectric measurement; Dielectrics; Base station (BS) array; dielectric superstrate; dual-polarization; mutual coupling reduction; ANTENNAS; DESIGN;

D O I：

10.1109/LAWP.2021.3065392

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter proposes a dielectric superstrate to reduce the couplings between copolarized and cross-polarized antenna elements in realistic base station (BS) arrays. The mutual couplings are reduced by adjusting the permittivity and profile of the dielectric superstrate to create "reflected" waves to neutralize the original coupling wave. The dielectric superstrate is a simple structure that is easy to design and manufacture. A large dielectric board and four small dielectric blocks help reduce the couplings between horizontal and vertical antenna elements, whereas a dielectric pillar is added to suppress the coupling between diagonal elements. The superior decoupling performance (>25 dB isolation) is demonstrated for dual-polarized BS arrays over the fifth generation frequency band of 3.3-3.8 GHz, without affecting the matching and radiation performances of the array elements.

引用

页码：843 / 847

页数：5

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