A Six-Port MIMO Antenna System With High Isolation for 5-GHz WLAN Access Points

Author

Wangwang Han ; Xiaopeng Zhou ; Jun Ouyang ; Yan Li ; Rui Long ; Feng Yang

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China (UESTC), Chengdu, China

Volume

13

fYear

2014

fDate

2014

Firstpage

880

Lastpage

883

Abstract

A six-port multiple-input-multiple-output (MIMO) antenna system with high port isolation for 5-GHz WLAN access points application is proposed in this letter. It consists of three vertically polarized and three horizontally polarized antenna elements alternately mounted on a pyramidal metal structure. Several techniques are used to improve the isolation performances of the antenna system, including the aperture-coupled feeding mechanism, quarter-wavelength chokes, and parasitic grooves. Measured results show that more than 45 dB isolation can be obtained between any two elements of the system within the operating band.

Keywords

MIMO communication; antenna feeds; wireless LAN; WLAN access points application; aperture-coupled feeding mechanism; frequency 5 GHz; high port isolation; horizontally polarized antenna elements; multiple-input-multiple-output antenna system; parasitic grooves; pyramidal metal structure; quarter-wavelength chokes; six-port MIMO antenna system; vertically polarized antenna elements; Antenna measurements; Antennas; Inductors; MIMO; Mutual coupling; Wireless LAN; Access points application; WLAN 5-GHz band; high isolation; multiple-input–multiple-output (MIMO);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2310739

Filename

6762844