A Compact FSS-Based Four-Port MIMO Antenna for Low Mutual Coupling

被引：12

作者：

Khan, Ijaz ^{[1
]}

Zhang, Kuang ^{[1
]}

Ali, Luqman ^{[1
]}

Wu, Qun ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Elect & Informat Engn, Harbin 150001, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2023年 / 22卷 / 12期

关键词：

Antennas; MIMO communication; Antenna measurements; Gain; Scattering parameters; Bandwidth; Resonant frequency; Diversity performance; frequency selective surface (FSS); multiple-input-multiple-output (MIMO); mutual coupling (MC); X-band; REDUCTION;

D O I：

10.1109/LAWP.2023.3300837

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 presents a four-port multiple-input-multiple-output (MIMO) antenna based on frequency selective surface (FSS) for X-band communication. The suggested MIMO antenna is composed of four-slotted circular microstrip patch elements, which have been planned on an FR-4 substrate with a low profile (0.91 lambda(0) x 0.91 lambda(0) x 0.045 lambda(0)). The suggested antenna reduces mutual coupling (MC) and enhances gain based on the FSS technique. The band-stop FSS transmission coefficient is below -10 dB over the 7.2 to 9.1 GHz range. Additionally, for transverse magnetic and transverse electric polarization, the planned FSS offers a steady frequency response for incidence angles up to 40(degrees). The suggested MIMO antenna bandwidth is from 7.8 to 9.08 GHz (15.4%), with a peak gain of 5.2 dBi. The MC < -20 dB is attained over the entire operating bandwidth. In addition, the suggested antenna envelope correlation coefficient is <0.005, diversity gain is <9.99, and channel capacity loss <0.3 bps/Hz is obtained in the operating frequencies band, approving good MIMO diversity performance.

引用

页码：2836 / 2840

页数：5

共 19 条

[1] Implementation of Slotted Meander-Line Resonators for Isolation Enhancement in Microstrip Patch Antenna Arrays [J].