A compact four-port UWB MIMO antenna with connected ground and wide axial ratio bandwidth

被引：31

作者：

Kumar, Sachin ^{[1
]}

Lee, Gwan Hui ^{[1
]}

Kim, Dong Hwi ^{[1
]}

Mohyuddin, Wahab ^{[1
]}

Choi, Hyun Chul ^{[1
]}

Kim, Kang Wook ^{[1
]}

机构：

[1] Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea

来源：

INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES | 2020年 / 12卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Circularly-polarized; compact; isolation; MIMO; UWB; CIRCULARLY-POLARIZED ANTENNA; DIVERSITY PERFORMANCE; ENHANCED ISOLATION; MONOPOLE ANTENNA; BAND; SYSTEM; INPUT; CSRR;

D O I：

10.1017/S1759078719000874

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：

A new design method of an ultra-wideband circularly-polarized planar multiple-input-multiple-output (MIMO) antenna is presented in this paper. The proposed MIMO antenna consists of four unit cell antennas, being comprised of a microstrip feed line and a square slotted ground plane. In the proposed unit cell design, a circular stub is protruded from the ground plane strip for achieving circular polarization. The unit cell of the MIMO antenna is optimized by adjusting design parameters. The compact four-port MIMO antenna prototype is designed on the FR4 substrate with the overall dimensions of 45 x 45 x 1.6 mm(3). The proposed four-port MIMO antenna design provides an impedance bandwidth (S-11 < -10 dB) of 112% (3.1-11 GHz) and a 3 dB axial ratio bandwidth of 36% (4.8-6.9 GHz). The performance of the fabricated MIMO antenna shows good agreement between the EM simulation and measurement results.

引用

页码：75 / 85

页数：11

共 37 条

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