Title :
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
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);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2310739
